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Corrosion Resistance of Zn and Zn-Ni Electrodeposits:Morphological Characterization and Phases Identification 被引量:1
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作者 Conceicao A.M.Dutra José W.J.Silva Roberto Z.Nakazato 《Materials Sciences and Applications》 2013年第10期644-648,共5页
Zinc alloys coatings formed with elements of group VIIIB are promising because they display similar properties and protect steel by galvanic action. The Zn-Ni alloy is remarkable by showing improved mechanical propert... Zinc alloys coatings formed with elements of group VIIIB are promising because they display similar properties and protect steel by galvanic action. The Zn-Ni alloy is remarkable by showing improved mechanical properties and better corrosion resistance when compared to zinc coatings of similar thickness, also can be applied at higher temperatures. In this work, electrodeposits of Zn, Zn-12%Ni, obtained upon SAE 1010 steel from commercial alkali baths, were treated by blue chromatization and characterized according to mechanical properties and morphology. Studies were carried out by using measures of hardness, roughness, SEM, EDS and XRD. Among the studied electrodeposits, alloys treated by chromatization showed higher corrosion resistance and Zn-Ni electrodeposits showed higher value of roughness and hardness, while zinc coating had results similar to the steel substrate By means of XRD, it was found that electrodeposits are crystalline, being identified in Zn-Ni alloy the presence of the phases g(Ni5Zn21) and d(Ni3Zn22), which are responsible for its higher corrosion resistance. 展开更多
关键词 Corrosion ELECTRODEPOSITION ZN Zn Alloy
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Effect of current density on the morphology of Zn electrodeposits
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作者 AilingFan WenhuaiTian M.Kurosaki 《Journal of University of Science and Technology Beijing》 CSCD 2004年第6期529-532,共4页
The effect of current density on the morphology of Zn electrodepositsprepared by a flow-channel cell was investigated by scanning electron microscopy (SEM). It was foundthat the morphology of Zn electrodeposits evolve... The effect of current density on the morphology of Zn electrodepositsprepared by a flow-channel cell was investigated by scanning electron microscopy (SEM). It was foundthat the morphology of Zn electrodeposits evolves from thin-layered hexagonal eta -phase crystalsto pyramidal eta -phase particles with increasing the current density. The morphological evolutionat various flow rates was also examined and the results show that the morphological evolution at alower flow rate is more remarkable than that at a higher flow rate with increasing the currentdensity. To reveal the mechanism of the morphological evolution in detail, the atomic configurationon both (0001)_eta and {1100 }_eta planes under different current densities was investigated, it wasnoted that a specify current density could provide a good condition for the layered epitaxialgrowth of hexagonal T)-phase. 展开更多
关键词 Zn electrodeposit current density flow rate morphological evolution
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Electrochemical Behavior and Corrosion Study of Electrodeposits of Zn and Zn-Fe-Co on Steel
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作者 Conceicao A.M.Dutra Eduardo N.Codaro Roberto Z.Nakazato 《Materials Sciences and Applications》 2012年第6期348-354,共7页
From industrialized baths, free of cyanide, the corrosion behavior of electrodeposits of zinc and zinc alloys was studied by means of electrochemical tests in aerated solution of 3.5% (0.6 M) NaCl at pH 8.2. In litera... From industrialized baths, free of cyanide, the corrosion behavior of electrodeposits of zinc and zinc alloys was studied by means of electrochemical tests in aerated solution of 3.5% (0.6 M) NaCl at pH 8.2. In literature, several studies are found about zinc coatings and zinc alloys, for example, Zn-Ni and Zn-Co, nevertheless there is little about the ternary alloy Zn-Fe-Co. The Fe presence in the alloy results in a good adhesion to the substrate and allows application of these materials at higher temperatures. The electrochemical tests were carried out by obtaining open circuit potential curves with immersion time, potentiodynamic polarization curves and cyclic voltammetry. From the obtained results, the large potential differences observed between the steel and the electrodeposits showed that the last protect the substrate, acting as a sacrifice metal. The tests disclosed similar behaviors in both the current densities and the corrosion potential for electrodeposits of Zn and Zn-Fe-Co. After chromate passivation process, a significant decrease in corrosion density was noted for Zn and when the system was de-aerated there was change in the cathodic process mechanism. 展开更多
关键词 CORROSION ELECTRODEPOSITION ZN Zn Alloy
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Advancing surface properties of Ni through electrodeposition of Mo coatings in molten CaCl_(2)−CaMoO_(4)
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作者 Xiao-tian CHENG Xiao YANG 《Transactions of Nonferrous Metals Society of China》 2026年第1期323-336,共14页
The molten CaCl_(2)−CaMoO_(4) system was investigated,and the electrodeposition of protective Mo coatings on Ni plates was demonstrated.The results confirm the high solubility of solid CaMoO_(4) and the electrochemica... The molten CaCl_(2)−CaMoO_(4) system was investigated,and the electrodeposition of protective Mo coatings on Ni plates was demonstrated.The results confirm the high solubility of solid CaMoO_(4) and the electrochemical reactivity of MoO_(4)^(2-)ions in molten CaCl_(2).The eutectic temperature and composition of the system are identified as 1021 K and 4.74 wt.%CaMoO_(4),respectively.Under constant-current electrolysis conditions of−10 mA/cm^(2) at 1123 K,uniform and dense Mo coatings are obtained on Ni plates with up to 90.31%efficiency.Increasing the current density raises the overpotential,leading to refined grains and decreased roughness.The Mo-coated Ni plate exhibits a significant improvement in hardness and corrosion resistance.Microhardness increases from HV 46.00 to HV 215.10 after coating,and the corrosion rate in a 20 wt.%NaCl solution at room temperature decreases to 0.1%that of the bare plate.These findings enhance our understanding of the molten CaCl_(2)–CaMoO_(4) system and emphasize the potential of innovative Mo coating technologies. 展开更多
关键词 MOLYBDENUM nickel calcium molybdate calcium chloride ELECTRODEPOSITION HARDNESS corrosion
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Ru-modified NiO electrocatalysts for HER:Lower energy barriers and prolonged stability
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作者 Li Luo Xiaohong Cheng Qi Wu 《Chinese Chemical Letters》 2026年第1期661-665,共5页
The hydrogen evolution reaction(HER) is a key process in electrocatalytic water splitting for hydrogen production,yet it is often limited by sluggish H^(*)-OH adsorption and H*binding kinetics.We obtained Rumodified N... The hydrogen evolution reaction(HER) is a key process in electrocatalytic water splitting for hydrogen production,yet it is often limited by sluggish H^(*)-OH adsorption and H*binding kinetics.We obtained Rumodified Ni O nanoparticles(Ru-Ni O/NF) with enhanced HER properties by substituting ruthenium(Ru)for Ni atoms in the Ni O(200) crystalline facets on nickel foam by a one-step electrodeposition technique.This novel catalyst exhibits a significantly reduced H^(*)-OH adsorption energy and improved kinetics,with an overpotential of only 60 mV at 10 mA/cm^(2) and a Tafel slope of 26.19 mV/dec.The Ru-Ni O/NF maintains its activity for over 115 h,outperforming NiO/NF by reducing the overpotential by 177 mV.DFT calculations confirm that the addition of Ru to NiO enhances the HER kinetics by modifying the electronic structure,optimizing the surface chemistry,stabilizing the intermediates,lowering the energy barriers,and facilitating efficient charge transfer through a robust three-dimensional structure,resulting in a change in the rate-limiting step and a significant reduction in the Gibbs free energy.This study presents a highly efficient HER catalyst and offers insights into designing advanced NiO-based electrocatalysts by reducing reaction energy barriers. 展开更多
关键词 Ru-modified NiO One-step electrodeposition HER DFT calculations 3D nanoparticles
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Advances in electrolytic copper foils:fabrication,microstructure,and mechanical properties 被引量:3
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作者 Long-Long Lu Hai-Tao Liu +8 位作者 Zhao-Dong Wang Qiong-Qiong Lu Yan-Jun Zhou Fei Zhou Yan-Min Zhang Wei-Wei Lu Bin Yang Qian-Qian Zhu Ke-Xing Song 《Rare Metals》 2025年第2期757-792,共36页
Electrolytic copper foil has gained significant attention as an essential component in lithium-ion batteries(LIBs),printed circuit boards(PCBs),and chip packaging substrates(CPSs)applications.With the advancement of L... Electrolytic copper foil has gained significant attention as an essential component in lithium-ion batteries(LIBs),printed circuit boards(PCBs),and chip packaging substrates(CPSs)applications.With the advancement of LIBs towards higher energy densities and the increasing density of electronic components on circuits,copper foil is required to have demanding properties,such as extremely thin thickness and extremely high tensile strength.This comprehensive review firstly summarizes recent progress on the fabrication of electrolytic copper foil,and the effects of process parameters,cathode substrate,and additives on the electrodeposition behavior,microstructure,and properties of copper foil are discussed in detail.Then the regulation strategies of mechanical properties of electrolytic copper foil are also summarized,including the formation of nanotwins and texture.Furthermore,the recent advances in novel electrolytic copper foils,such as composite foils and extra-thin copper foils,are also overviewed.Lastly,the remaining challenges and perspectives on the further development of electrolytic copper foils are presented. 展开更多
关键词 Electrolytic copper foil Fabrication processes ELECTRODEPOSITION MICROSTRUCTURE Mechanical properties
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Brief review of external physical field-boosted low-temperature electrodeposition for metals and alloys 被引量:1
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作者 Junjian Zhou Zhiyuan Li +4 位作者 Qi Wang Na Li Xu Li Yana Wang Weili Song 《International Journal of Minerals,Metallurgy and Materials》 2025年第5期992-1007,共16页
Electrochemical metallurgy at low temperature(<473 K)shows promise for the extraction and refinement of metals and alloys in a green and sustainable manner.However,the kinetics of the electrodeposition process is g... Electrochemical metallurgy at low temperature(<473 K)shows promise for the extraction and refinement of metals and alloys in a green and sustainable manner.However,the kinetics of the electrodeposition process is generally slow at low temperature,resulting in large overpotential and low current efficiency.Thus,the application of external physical fields has emerged as an effective strategy for improving the mass and charge transfer processes during electrochemical reactions.This review highlights the challenges associated with low-temperature electrochemical processes and briefly discusses recent achievements in optimizing electrodeposition processes through the use of external physical fields.The regulating effects on the optimization of the electrodeposition process and the strategies for select-ing various external physical fields,including magnetic,supergravity,and ultrasonic fields are summarized from the perspectives of equipment and mechanisms.Finally,advanced methods for in-situ characterization of external physical field-assisted electrodeposition processes are reviewed to gain a deeper understanding of metallic electrodeposition.An in-depth exploration of the mechanism by which external physical fields affect the electrode process is essential for enhancing the efficiency of metal extraction at low temperatures. 展开更多
关键词 low-temperature electrodeposition external physical field electrode kinetics low-temperature electrolyte in-situ characteriz-ation methods
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Self-adjusting voxelated electrochemical three-dimensional printing of metallic microstructures 被引量:1
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作者 Xianghe Meng Xiaomo Wu +4 位作者 Xingjian Shen Yan Xu Hao Zhang Mingjun Chen Hui Xie 《International Journal of Extreme Manufacturing》 2025年第1期420-433,共14页
Microscale metallic structures enhanced by additive manufacturing technology have attracted extensive attention especially in microelectronics and electromechanical devices.Meniscus-confined electrodeposition(MCED)adv... Microscale metallic structures enhanced by additive manufacturing technology have attracted extensive attention especially in microelectronics and electromechanical devices.Meniscus-confined electrodeposition(MCED)advances microscale 3D metal printing,enabling simpler fabrication of superior metallic microstructures in air without complex equipment or post-processing.However,accurately predicting growth rates with current MCED techniques remain challenging,which is essential for precise structure fabrication and preventing nozzle clogging.In this work,we present a novel approach to electrochemical 3D printing that utilizes a self-adjusting,voxelated method for fabricating metallic microstructures.Diverging from conventional voxelated printing which focuses on monitoring voxel thickness for structure control,this technique adopts a holistic strategy.It ensures each voxel’s position is in alignment with the final structure by synchronizing the micropipette’s trajectory during deposition with the intended design,thus facilitating self-regulation of voxel position and reducing errors associated with environmental fluctuations in deposition parameters.The method’s ability to print micropillars with various tilt angles,high density,and helical arrays demonstrates its refined control over the deposition process.Transmission electron microscopy analysis reveals that the deposited structures,which are fabricated through layer-by-layer(voxel)printing,contain nanotwins that are widely known to enhance the material’s mechanical and electrical properties.Correspondingly,in situ scanning electron microscopy(SEM)microcompression tests confirm this enhancement,showing these structures exhibit a compressive yield strength exceeding 1 GPa.The indentation tests provided an average hardness of 3.71 GPa,which is the highest value reported in previous work using MCED.The resistivity measured by the four-point probe method was(1.95±0.01)×10^(−7)Ω·m,nearly 11 times that of bulk copper.These findings demonstrate the considerable advantage of this technique in fabricating complex metallic microstructures with enhanced mechanical properties,making it suitable for advanced applications in microsensors,microelectronics,and micro-electromechanical systems. 展开更多
关键词 additive manufacturing self-adjusting voxelated electrodeposition metallic microstructures 3D printing nanotwinned copper
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In-situ Electrodeposition of FeCo-MOF on Au Ultramicroelectrode for Highly Sensitive Detection of Epinephrine
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作者 Yan Chen Jian Shang +3 位作者 Si-Yu Wan Xiao-Tong Cui Zhong-Gang Liu Zheng Guo 《电化学(中英文)》 北大核心 2025年第3期25-34,共10页
Metal-organic framework(MOF)nanostructures have emerged as a prominent class of materials in the advancement of electrochemical sensors.The rational design of bimetallic MOF-functionalized microelectrode is of importa... Metal-organic framework(MOF)nanostructures have emerged as a prominent class of materials in the advancement of electrochemical sensors.The rational design of bimetallic MOF-functionalized microelectrode is of importance for improv-ing the electrochemical performance but still in great challenge.In this work,the bimetallic FeCo-MOF nanostructures were assembled onto a gold disk ultramicroelectrode(Au UME,5.2μm in diameter)via an in-situ electrodeposition method,which enhanced the sensitive detection of epinephrine(EP).The in-situ electrodeposited FeCo-MOF exhibited a character-istic nanoflower-like morphology and was uniformly dispersed on the Au UME.The FeCo-MOF/Au UME demonstrated excellent electrochemical performance on the detection of EP with a high sensitivity of 36.93μA·μmol^(-1)·L·cm^(-2)and a low detection limit of 1.28μmol·L^(-1).It can be attributed to the nonlinear diffusion of EP onto the ultra-micro working substrate,coupled with synergistical catalytic activity of the bimetallic Fe,Co within MOF structure.Furthermore,the FeCo-MOF/Au UME has been successful applied to the analysis of EP in human serum samples,yielding high recovery rates.These results not only contribute to the expansion of the research area of electrochemical sensors,but also provide novel insights and directions into the development of high-performance MOF-based electrochemical sensors. 展开更多
关键词 FeCo-MOF Gold disk ultramicroelectrode In-situ electrodeposition Electroanalysis EPINEPHRINE
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Colorless/Black Switching Electrochromic Device Based on WO_(3)·xH_(2)O and Reversible Metal Electrodeposition
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作者 WAN Xinyi WANG Wenqi +3 位作者 LI Jiacheng ZHAO Junliang MA Dongyun WANG Jinmin 《无机材料学报》 北大核心 2025年第10期1163-1172,I0001,I0002,共12页
Electrochromic(EC)smart windows utilizing a reversible metal electrodeposition device(RMED)offer a compelling alternative for dynamically regulating transmissions of optical and thermal energy.An EC device(ECD)is cons... Electrochromic(EC)smart windows utilizing a reversible metal electrodeposition device(RMED)offer a compelling alternative for dynamically regulating transmissions of optical and thermal energy.An EC device(ECD)is constructed by reversible metal electrodeposition(RME)of Bi/Cu on WO_(3)·xH_(2)O film electrodeposited onto fluorine-doped tin oxide(FTO)transparent conductive glass.The electrolyte consists of CuCl_(2),BiCl_(3),KCl and HCl aqueous solution,supplying necessary components for both electrochemical and electrodeposition processes.The ECD shows ability to rapidly transition between colorless and black states,which achieves a large optical modulation of 77.0%at 570 nm.In the black state,the ECD exhibits a near-zero transmittance in the wavelength range of 400-1100 nm while maintaining 96.6%of its initial optical modulation after coloration/bleaching cycling of 60000 s,exhibiting good cyclic stability.This RMED has relatively high stability under open-circuit voltage and also possesses excellent heat insulation performance.The results offer a solution to overcome the poor cyclic stability of RMEDs and improve the optical modulation of ECDs. 展开更多
关键词 reversible metal electrodeposition electrochromic WO_(3)·xH_(2)O
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Effect of pH-dependent bath speciation on cobalt electrodeposition from sulfate-gluconate solutions
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作者 Ewa RUDNIK 《Transactions of Nonferrous Metals Society of China》 2025年第7期2399-2420,共22页
pH-dependent multiple equilibria in cobalt sulfate-gluconate baths were calculated using stability constants adopted from literature.Changes of the bath speciation were then discussed in terms of spectrophotometric ex... pH-dependent multiple equilibria in cobalt sulfate-gluconate baths were calculated using stability constants adopted from literature.Changes of the bath speciation were then discussed in terms of spectrophotometric experiments and buffering properties of the solutions(pH 3-10).Cyclic voltammetry indicated changes in electrochemical behavior of cobalt species caused by different ionic compositions of the electrolytes.Tafel slopes were calculated and discussed in relation to electroreduction of cobalt species.Chronoamperometric studies showed 3D instantaneous nucleation of cobalt followed by diffusion-controlled growth,but it was disturbed at higher pH due to the release of cation from gluconate complexes as a limiting step.Diffusion coefficients of cobalt species were found.Changes in the pH were also reflected by modifications of morphology(SEM),development of preferred orientation planes(XRD,texture coefficients)and current efficiency,but not the thickness of the coatings deposited at constant potential of-1.0 V(vs Ag/AgCl).Anodic stripping analysis showed changes in anodic responses originated from the existence of preferentially oriented planes in cobalt layers. 展开更多
关键词 COBALT ELECTRODEPOSITION nucleation SPECIATION structure
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Oriented crystallization of metal electrodeposition in aqueous zinc batteries
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作者 Lingxiao Ren Yang Dong +4 位作者 Dalong Zhong Zhijiang Su Aoxuan Wang Chengxin Peng Jiayan Luo 《Green Energy & Environment》 2025年第9期1819-1827,共9页
Aqueous zinc-ion batteries(AZIBs)are attractive for large-scale energy storage due to their safety and low cost,but practical use is limited by dendrite growth,hydrogen evolution,and passivation.Traditional solutions ... Aqueous zinc-ion batteries(AZIBs)are attractive for large-scale energy storage due to their safety and low cost,but practical use is limited by dendrite growth,hydrogen evolution,and passivation.Traditional solutions often introduce additional complexity without addressing the root cause:unstable zinc deposition.Recent advancements now focus on controlling zinc crystallographic orientation to fundamentally suppress inhomogeneous nucleation and growth.The(002)basal plane supports smooth,reversible growth and can be promoted via heteroepitaxy or homoepitaxy,enabling long cycle life even at high rates.However,emerging studies show that Zn(100)and Zn(101)orientations may offer comparable benefits through faster kinetics and reduced parasitic reactions.Scalable,non-epitaxial methods,such as electrolyte tuning and pressure control also show promise.Despite these advances,balancing thermodynamic stability with kinetic performance remains a major challenge.Future research should integrate orientation control with strategies against corrosion and calendar aging to enable practical,highperformance AZIBs. 展开更多
关键词 Zn battery ELECTRODEPOSITION CRYSTALLIZATION DENDRITE EPITAXIAL
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Electrodeposition of antibacterial,anti-corrosion copper nanopillars arrays with heat conductive properties for marine environments
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作者 Muqiu Xia Li Lai +3 位作者 Mengyu Fu Yuxin Wu Shiqiang Chen Guangzhou Liu 《Journal of Materials Science & Technology》 2025年第29期89-102,共14页
Copper materials have emerged as the preferred choice for marine heat exchangers owing to their excep-tional thermal conductivity.The enhancement of surface performance can be significantly achieved by engineering mic... Copper materials have emerged as the preferred choice for marine heat exchangers owing to their excep-tional thermal conductivity.The enhancement of surface performance can be significantly achieved by engineering micro-nano structures on the material’s surface,thereby attaining improved corrosion resis-tance and antibacterial properties in complex marine environments.In this study,we directly fabricated a copper nanopillar array structure on the substrate via template-assisted electrodeposition.Subsequently,passivation of the pillar-structured copper surface was achieved through a formate&dodecanethiol-assisted solvothermal process(Cu/FA-DT).The results indicate that the nanopillar structure effectively eliminates bacteria through physical rupture upon contact,leading to an 85.47%reduction in P.aerug-inosa adhesion compared to untreated samples after 72 h of immersion in seawater.Furthermore,cor-rosion resistance is significantly enhanced,with inhibition rates of approximately 95.27%and 90.50%in natural and P.aeruginosa containing seawater,respectively.Notably,the thermal conductivity of copper is well preserved,ensuring its functional integrity in marine heat exchange environments.After 7 days of immersion in natural and P.aeruginosa containing seawater,the thermal conductivity of Cu/FA-DT de-creased by only 15.41%and 2.78%,respectively,demonstrating superior thermal conductivity retention compared to untreated bare copper.This study provides valuable insights into the potential application of traditional copper in marine heat exchange environments. 展开更多
关键词 COPPER Template-assisted electrodeposition Nanopillars arrays ANTIBACTERIAL ANTI-CORROSION Thermal conductivity
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Pulse electrodeposited NiMoZn alloy hydrophobicized with PTFE for high performance alkaline water electrolysis
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作者 Yuan Sheng Wenxing Zhu +3 位作者 Zhijian Li Shuo Li Liangbin Shao Jianguo Wang 《Chinese Journal of Chemical Engineering》 2025年第10期254-266,共13页
Green hydrogen production by alkaline water electrolysis is an important technology in the decarbonization of the current industry.However,its large-scale application is limited by mediocre performance of conventional... Green hydrogen production by alkaline water electrolysis is an important technology in the decarbonization of the current industry.However,its large-scale application is limited by mediocre performance of conventional Raney Ni electrocatalysts.Herein,high-performance NiMoZn alloy catalysts of the Raney Ni type are developed by pulse electrodeposition for the hydrogen evolution reaction(HER).The optimized catalyst,NMZ-CA,exhibits an overpotential of 37 mV at 10 mA·cm^(-2) and a Tafel slope of 27 mV·dec^(-1) in 1 mol·L^(-1) KOH.Tafel slope measurements,X-ray photoelectron spectroscopy,and H_(2) temperatureprogrammed desorption experiments show that the incorporation of Mo and Zn in Ni weakens the binding of HER intermediate(H_(ads))on strongly adsorbing sites,leading to improved electrochemical kinetics.Electron microscopy and X-ray diffraction study reveals that a phase-pure Mo-doped Ni2Zn11 intermetallic precatalyst formed via pulse electrodeposition and subsequent heat treatment is key to the structure integrity and performance of the catalyst after activation by alkaline leaching.Modificationof NMZ-CA with PTFE enhances its HER performance by facilitating gas removal and improving structure integrity.A practical alkaline water electrolyzer built on the modifiedNMZ/PTFE-CA electrode delivers 2.0 A·cm^(-2) at 1.92 V cell voltage and operates for 250 h without decay.This work provides insights into the synergy between Ni,Mo,and Zn in Raney Ni-type catalysts,and demonstrates the hydrophobic modification as an effective strategy for electrode development in high-performance alkaline water electrolysis. 展开更多
关键词 Hydrogen production ELECTROLYSIS Non-noble metal High current density Stability Pulse electrodeposition
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Superhydrophobic nickel/manganese alloy coatings on carbon steel with corrosion resistance and robustness capabilities prepared via one-step electrodeposition method
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作者 Zhang-yan Zhou Bei-yue Ma +8 位作者 Xin Zhang Yue Yin Hong-tao Shen Yu-xiang Wang Chuan-bo Hu Guang-ming Li Cheng-cheng Zhang Yong-li Liu Guang-yi Zhao 《Journal of Iron and Steel Research International》 2025年第5期1127-1138,共12页
To improve the practical application of carbon steel,developing a superhydrophobic coating with outstanding mechanical properties is essential for effective corrosion resistance protection.Here,we obtained a robust su... To improve the practical application of carbon steel,developing a superhydrophobic coating with outstanding mechanical properties is essential for effective corrosion resistance protection.Here,we obtained a robust superhydrophobic anti-corrosion coating with a cauliflower structure by co-depositing the lauric acid with Ni ions and Mn ions onto a carbon steel through electrodeposition method.As demonstrated by the results,superhydrophobic Ni/Mn alloy(SNMAmit)displays a multi-hierarchical micro/nano cauliflower structure under the synergy of optimal parameters,exhibiting superb superhydrophobicity with contact angle of 161.9°and sliding angle of 6.2°.Surprisingly,the Tafel polarization curves in 3.5%NaCl showed that the corrosion potential of SNMAmit coating was 476 mV,and the corrosion current density was reduced from 1.39×10^(−5)to 5.89×10^(−7)A/cm^(2).The reduced corrosion current density of superhydrophobic Ni/Mn alloy(SNMA)indicates that SNMA coating can significantly enhance the anti-corrosion properties of carbon steel.In addition,after being subjected to various damages such as blade scraping,tape cyclic peeling,acid and alkalis,sandpaper cyclic abrasion,high temperatures,ultrasound,and graphite contaminant,SNMA showed good mechanical stability,interference resistance,heat resistance,and self-cleaning properties,which made it suitable for hostile conditions. 展开更多
关键词 Carbon steel Superhydrophobic surface Metallic coating ELECTRODEPOSITION Corrosion resistance
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Characterization,Mechanical Property,Degradation Behavior,and Osteogenic Activity of Zn-Mn Alloy Foam Prepared by Electrodeposition
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作者 Tiantian Wang Lin Liu +4 位作者 Zexin Liu Kang Wang Runhua Yao Xiaohong Yao Ruiqiang Hang 《Acta Metallurgica Sinica(English Letters)》 2025年第7期1157-1173,共17页
Zinc(Zn)-based materials show broad application prospects for bone repair due to their biodegradability and good biocompatibility.In particular,Zn metal foam has unique interconnected pore structure that facilitates i... Zinc(Zn)-based materials show broad application prospects for bone repair due to their biodegradability and good biocompatibility.In particular,Zn metal foam has unique interconnected pore structure that facilitates inward growth of new bone tissue,making it ideal candidates for orthopedic implants.However,pure Zn metal foam shows poor mechanical property,high degradation rate,and unsatisfactory osteogenic activity.Herein,Zinc-manganese(Zn-Mn)alloy foams were electrodeposited in Zn and Mn-containing electrolytes to overcome the concerns.The results showed that Mn could be incorporated into the foams in the form of MnZn_(13).Zn-Mn alloy foams showed better mechanical property and osteogenic activity as well as moderate degradation rate when compared with pure Zn metal foam.In addition,these properties could also be regulated by preparation process.The peak stress and osteogenic activity increased with deposition current(0.3‒0.5 A)and electrolyte pH(3‒5),but decreased with electrolyte temperature(20‒40℃),while the degradation rate exhibited opposite tendency,which suggests high deposition current and electrolyte pH and low electrolyte temperature can fabricate Zn-Mn alloy foam with favorable mechanical property,moderate degradation rate,and osteogenic activity.These findings provide a valuable reference for the design and fabrication of novel Zn-based biodegradable materials. 展开更多
关键词 Zinc-manganese alloy foam ELECTRODEPOSITION Mechanical property Degradation behavior Osteogenic activity
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Exploring coating electrodeposition protocols from a cross-electrolyte and cross-metal perspective
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作者 Qi Wang Rui Yuan +6 位作者 Mengbin Yang Wei Gao Shuqiang Jiao Donghua Tian Handong Jiao Hongying Yu Dongbai Sun 《Journal of Materials Science & Technology》 2025年第23期122-134,共13页
Metal coating is a prevalent strategy for enhancing surface properties.Among the numerous methods for preparing coatings,electrodeposition stands out due to its simplicity,cost-effectiveness,and high efficiency,making... Metal coating is a prevalent strategy for enhancing surface properties.Among the numerous methods for preparing coatings,electrodeposition stands out due to its simplicity,cost-effectiveness,and high efficiency,making it widely utilized in various metal coating applications.By meticulously selecting appropriate electrolytes and electrodeposition parameters,metal coatings with diverse structures and morphologies can be obtained,and tailored to meet specific performance requirements.As the demand for superior metal coating performance continues to rise,it is imperative to summarize and forecast electrodeposition techniques to meet the criteria for high quality and precision.This review delves into the electrodeposition preparation of several typical metal coatings in diverse electrolyte systems,including aqueous solutions,ionic liquids,deep eutectic solvents,and molten salts.We also examine the electrodeposition process on the cathode,elucidate the correlation between parameters and coating quality,and suggest future research directions.This review aims to provide valuable insights and guidance for the electrodeposition preparation of metal coatings. 展开更多
关键词 Metal coatings ELECTRODEPOSITION Electrode process Composite structure
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Recycle of graphite and recovery of valuable metals from industrial-grade black mass of spent lithium-ion battery
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作者 Shang Liu Kai Wang +4 位作者 Linlin Chen Yaoguo Huang Xianfu Sun Qingyan Chu Yali Zhang 《Chinese Journal of Chemical Engineering》 2025年第12期335-347,共13页
The industrial-grade black mass of LiFePO_(4)/LiNixMnyO_(4)/C from spent lithium-ion battery is difficult to be recovered because of its complex composition.In this study,a recycling of graphite and comprehensive reco... The industrial-grade black mass of LiFePO_(4)/LiNixMnyO_(4)/C from spent lithium-ion battery is difficult to be recovered because of its complex composition.In this study,a recycling of graphite and comprehensive recovery of valuable metals from industrial-grade black mass of spent lithium-ion battery was proposed.Acid leaching can separate graphite and cathode materials well.The separated graphite was purified by roasting,and its electrochemical properties were tested.The specific discharge capacity of graphite purified at 600◦are the best,which reach 342.46 mA·h·g^(-1)at 0.1 C.After 50 cycles at 0.1 C,the capacity retention rate was 98.26%.The charge-discharge cycle stability was improved at high rates.Nearly 100%of copper can be recovered from leaching solution by electrodeposition.FePO_(4)·2H_(2)O is recovered by adjusting the pH of the solution to 2,andα-FePO_(4) is obtained by roasting.Ni,Mn and Li can be recovered by precipitation separation.The optimum conditions for the recovery process was determined,and the mechanisms of the leaching and electrodeposition process were characterized by XRD,XPS,SEM-EDS. 展开更多
关键词 Spent lithium-ion batteries GRAPHITE ELECTRODEPOSITION Valuable metal recovery
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ZnAl-LDH film for self-powered ultraviolet photodetection
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作者 Simin Sun Yuan Zhang +3 位作者 Qiyue Gao Nana Zhang PingAn Hu Wei Feng 《Nano Materials Science》 2025年第3期377-382,共6页
Self-powered photoelectrochemical-type(PEC)ultraviolet photodetectors(UV PDs)have been rapidly developed owing to their low-cost fabrication and good photodetection.However,achieving high-performance and selfpowered P... Self-powered photoelectrochemical-type(PEC)ultraviolet photodetectors(UV PDs)have been rapidly developed owing to their low-cost fabrication and good photodetection.However,achieving high-performance and selfpowered PEC UV PDs based on an individual material is still challenging.Therefore,developing more wide bandgap semiconductors for high-performance PEC UV PDs is attractive.Here,we demonstrate that ZnAl-LDH is suitable for self-powered PEC UV PDs with high responsivity and excellent wavelength selectivity for the first time.The responsivity is 29.25 mA/W(254 nm irradiation)and the UV/visible rejection ratio is 1037,surpassing most PEC UV PDs.Furthermore,the PEC UV PDs have fast response,good stability,and underwater optical communication capability.This work offers more chances for the development of high-performance PEC UV PDs and demonstrates the potential application of ZnAl-LDH in underwater optoelectronic devices. 展开更多
关键词 PHOTOELECTROCHEMICAL Layered double hydroxides Ultraviolet photodetectors ELECTRODEPOSITION
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Recent progress on electrodeposition of metal/alloy films or coatings in deep eutectic solvents
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作者 Man-peng LIN Han-dong JIAO +5 位作者 Rui YUAN Le-yang LI Lin-lin WANG Rui-yang SUN Dong-hua TIAN Shu-qiang JIAO 《Transactions of Nonferrous Metals Society of China》 2025年第9期2803-2821,共19页
The development of low-energy consumption and environmentally friendly electrodeposition of metal/alloy films or coatings is presently one of the primary topics for the research community.For this purpose,deep eutecti... The development of low-energy consumption and environmentally friendly electrodeposition of metal/alloy films or coatings is presently one of the primary topics for the research community.For this purpose,deep eutectic solvents(DESs)are valued as electrolytes for their advantages of low operating temperature and wide electrochemical windows.At present,there is large amount of literature on this emerging field,but there are no specialized reviews of these studies.Here,after a brief introduction of DESs’concept and history,we comprehensively reviewed the lastest progress on the metal/alloy electrodeposition in DESs.Additionally,we discussed the key influence factors of the electrodeposition process and analyzed the corresponding mechanisms.Based on these,we emphasized the importance of the establishment of predictive models for dealing with the challenges in large-scale applications. 展开更多
关键词 recent progress ELECTRODEPOSITION metal/alloy films deep eutectic solvents electrode process
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