The global pursuit of clean and sustainable renewable energy emphasizes the necessity for advanced energy storage systems.Researchers in this field aim to develop devices that integrate the high-energy density of batt...The global pursuit of clean and sustainable renewable energy emphasizes the necessity for advanced energy storage systems.Researchers in this field aim to develop devices that integrate the high-energy density of batteries with the rapid charge and discharge rates characteristic of capacitors.Protons,due to their small size and efficient diffusion via Grotthuss conduction mechanism,serve as particularly advantageous charge carriers for ultrafast intercalation and deintercalation in aqueous batteries.This property has led to the development of a novel energy storage device defined as the aqueous proton battery(APB),which holds the potential to establish a distinct position within the energy storage landscape.This article offers a comprehensive review of recent advancements in electrode materials and battery configurations specifically designed for APBs.The fundamental principles of electrochemical proton storage and detailed insights into Faradaic APB electrodes are highlighted,while the associated challenges regarding their electrochemical performance and operational mechanisms are emphasized.Additionally,the strategic design approaches for full-battery systems aimed at achieving high-performance aqueous proton energy storage are summarized.Finally,the challenges and potential opportunities for further enhancing the applications of APBs are proposed.展开更多
Graphene quantum dots(GQDs)which are nanofragments of graphene with an average size between 2 and 50 nm have attracted much attention due to their outstanding properties such as high conductivity,high surface area,and...Graphene quantum dots(GQDs)which are nanofragments of graphene with an average size between 2 and 50 nm have attracted much attention due to their outstanding properties such as high conductivity,high surface area,and good solubility in various solvents.GQDs combine the quantum confinement and edges effects and the properties of graphene.Therefore,GQDs offers a broad range of applications in various fields(medicine,energy conversion,and energy storage devices).This review will present the recent research based on the introduction of GQDs in batteries,supercapacitors,and microsupercapacitors as electrodes materials or mixed with an active material as an auxiliary agent.Tables,discussed on selected examples,summarize the electrochemical performances and finally,challenges and perspectives are recalled for the subsequent optimization strategy of electrode materials.This review is expected to appeal a broad interest on functional GQDs materials and promote the further development of high-performance energy storage device.展开更多
The development of alternative electrode materials with high energy densities and power densities for batteries has been actively pursued to satisfy the power demands for electronic devices and hybrid electric vehicle...The development of alternative electrode materials with high energy densities and power densities for batteries has been actively pursued to satisfy the power demands for electronic devices and hybrid electric vehicles. Recently, antimony（Sb）-based intermetallic compounds have attracted considerable research interests as new candidate anode materials for high-performance lithium-ion batteries（LIBs） and sodium-ion batteries（SIBs） due to their high theoretical capacity and suitable operating voltage. However, these intermetallic systems undergo large volume change during charge and discharge processes, which prohibits them from practical application. The rational construction of advanced anode with unique structures has been proved to be an effective approach to enhance its electrochemical performance. This review highlights the recent progress in improving and understanding the electrochemical performances of various Sb-based intermetallic compound anodes. The developments of synthesis and construction of Sb-based intermetallic compounds are systematically summarized. The electrochemical performances of various Sb-based intermetallic compound anodes are compared in its typical applications（LIBs or SIBs）.展开更多
Owing to adjustable microstructure and stable physiochemical properties,carbon-based materials are regarded as promising materials as anodes for potassium-ion batteries(PlBs).Building amorphous structure and introduci...Owing to adjustable microstructure and stable physiochemical properties,carbon-based materials are regarded as promising materials as anodes for potassium-ion batteries(PlBs).Building amorphous structure and introducing defects are favorable methods to generate active sites and improve the electrochemical performances of carbon-based materials.In this work,we develop a facile carbonization method to prepare sulfur-doped amorphous carbon microspheres with hierarchical structure and modulated defects concentration(S-CM-700) for potassium storage.Benefiting from the special microstructure,S-CM-700 exhibits the optimal performance and obtains high reversible capacity of 199.6 mAh·g^(-1) at 100 mA·g^(-1),excellent rate property and prominent durability(0.0055%capacity decay per cycle during 1800 cycles).Kinetics analysis and electrochemical characterization are carried out to reveal that the potassium storage could be boosted by regulating the defect level,layer spacing and the content of sulfur-doping.The work provides a general synthesis approach to prepare sustainable carbon anodes for advanced PlBs.展开更多
The development of high-performance aqueous batteries calls for an in-depth knowledge of their chargedischarge redox and failure mechanism,as well as a systematic understanding of the dynamic evolution of microstructu...The development of high-performance aqueous batteries calls for an in-depth knowledge of their chargedischarge redox and failure mechanism,as well as a systematic understanding of the dynamic evolution of microstructure,phase composition,chemical composition,and local chemical environment of the materials for battery.In-situ characterization technology is expected to understand and reveal the problems faced by aqueous rechargeable batteries,such as the dissolution of electrode materials,the growth of metal negative electrode dendrites,passivation,corrosion,side reactions and a series of problems.Based on this,typical in-situ characterization techniques and their basic mechanisms are summarized,including in-situ optical visualization,in-situ microscopy techniques(in-situ scanning electron microscopy(SEM),in-situ transmission electron microscopy(TEM)),in-situ X-ray techniques(in-situ X-ray diffraction(XRD),in-situ X-ray photoelectron spectroscopy(XPS),in-situ near-edge structural X-ray absorption spectroscopy(XANES)),and in-situ spectroscopy techniques(in-situ Raman spectroscopy,in-situ Fourier transform infrared(FTIR)).Moreover,some emerging techniques concerning aqueous battery research,especially gas evolution and materials dissolution issues,such as in-situ electrochemical quartz crystal microbalance(EQCM).in-situ fiber-optic sensing,in-situ gas chromatography(GC) are introduced.At last,the applications of advanced in-situ characterizations in future research of aqueous batteries are emphasized and discussed,along with some of the remaining challenges and possible solutions.展开更多
The enhanced coalbed methane recovery using CO_(2) injection(CO_(2)-ECBM)is widely proposed as a way of achieving the energy transition and reducing atmospheric CO_(2),in areas such as the Lorrain basin in France,wher...The enhanced coalbed methane recovery using CO_(2) injection(CO_(2)-ECBM)is widely proposed as a way of achieving the energy transition and reducing atmospheric CO_(2),in areas such as the Lorrain basin in France,where heavy industry is responsible for huge CO_(2) emissions and coal mines have been closed for more than a decade.This paper deals with the feasibility of extracting methane from the Lorraine basin using CO_(2)-ECBM by comparing data from sorption isotherms,thermogravimetric analyses and breakthrough curves for two coal samples.One is bituminous(Box 18),from Folschviller(France)and is compared with another sub-bituminous(THO1)from La Houve(France),which is used as a reference because it was identified as a good candidate for CO_(2)-ECBM in a previous research program.The quantities of adsorbed gases(CO_(2)/CH_(4))obtained by sorption isotherms,thermogravimetry and CO,breakthrough curves showed that Box 18 adsorbs more CO_(2) and CH_(4) than THO1 due to its higher porosity and good affinity for gases(CO_(2)/CH_(4)).Toth model fits the experimental CH_(4) and CO_(2) adsorption isotherms better,reflecting the fact that the adsorption surface of the coals studied is heterogeneous.Adsorption enthalpies obtained by calorimetry indicated physisorption for gas-coal interactions,with higher values for CO_(2) than for CH_(4).Thermogravimetric analyses and breakthrough curves carried out at up to 50%relative humidity showed that the adsorption capacity of CO_(2) decreases with increasing temperature and the presence of water,respectively.The compilation of these experimental data explained the adsorption process of the studied coals and revealed their advantages for CO_(2)-ECBM.展开更多
By the functional B3LYP and M05-2X of DFT and in two bases set, more and more extended (6-311G and 6-311G (d, p)), theoretical study of antioxidant properties of four hydrazones was carried out. The calculations made ...By the functional B3LYP and M05-2X of DFT and in two bases set, more and more extended (6-311G and 6-311G (d, p)), theoretical study of antioxidant properties of four hydrazones was carried out. The calculations made concern the geometrical, spectroscopic and electronic parameters of the molecules. Analysis of the results relating to the geometrical parameters was carried out by calculating interatomic distances, relative errors between calculated values and those obtained experimentally by X-ray diffraction found in the literature. The 13C NMR spectra were calculated by GIAO (Gauge Including Atomic Orbitals) methods, and the results were subjected to statistical analysis by calculating Mean Absolute Deviation (MAD), Root Mean. Square (RMS) and the correlation coefficient (R2), in comparison with experimental spectra. The analysis of the results of calculations of various electronic parameters (hardness (η), softness (S), electronegativity (χ), electrophile index (ω), energy gap (HOMO-LUMO)) reveals that, overall, the methods M05-2X/6-311G (d, p) and B3LYP/6-311G (d, p) found that (R) - (?) - carvone salicylhydrazone (N2) is the most antioxidant molecule of the four molecules and also classify them according to their stability. This confirms the results obtained on the antitrypanosomal activity, the toxicity, the cytotoxicity and the selectivity of the synthesized compounds. ?展开更多
Ether electrolytes for potassium-ion batteries exhibit a broader electrochemical window and greater applicability,yet most of them are high-concentration electrolytes with elevated cost.In this study,we propose the us...Ether electrolytes for potassium-ion batteries exhibit a broader electrochemical window and greater applicability,yet most of them are high-concentration electrolytes with elevated cost.In this study,we propose the use of a weakly solvating cyclic ether electrolyte with tetrahydropyran(THP)as the solvent.This approach induces the formation of a thin and dense inorganic-rich solid electrolyte interphase(SEI)film,which is accompanied by a decrease in the activation energy of electrode interfacial reactions due to the weak ligand binding of THP with K^(+).Density functional theory(DFT)simulations also corroborate the hypothesis that K^(+)has a lower binding energy with THP.During potassium storage process,the phenomenon of solvent co-intercalation of graphite does not occur,which greatly reduces the destruction of the graphite structure and enables a superior electrochemical performance and enhanced cycling stability at a lower concentration(2 M).At a current density of 0.2 C(55.8 mA·g^(-1)),the battery can be stably cycled for 800 cycles(approximately 8 months)with a specific capacity of 171.8 mAh·g^(-1).This study provides a new ether-based electrolyte for potassium ion batteries and effectively reduces the electrolyte cost,which is expected to inspire further development of energy storage batteries.展开更多
基金financially supported by the National Natural Science Foundation of China (No.52101269)the Natural Science Foundation of Hubei Province (No. 2024AFD039)
文摘The global pursuit of clean and sustainable renewable energy emphasizes the necessity for advanced energy storage systems.Researchers in this field aim to develop devices that integrate the high-energy density of batteries with the rapid charge and discharge rates characteristic of capacitors.Protons,due to their small size and efficient diffusion via Grotthuss conduction mechanism,serve as particularly advantageous charge carriers for ultrafast intercalation and deintercalation in aqueous batteries.This property has led to the development of a novel energy storage device defined as the aqueous proton battery(APB),which holds the potential to establish a distinct position within the energy storage landscape.This article offers a comprehensive review of recent advancements in electrode materials and battery configurations specifically designed for APBs.The fundamental principles of electrochemical proton storage and detailed insights into Faradaic APB electrodes are highlighted,while the associated challenges regarding their electrochemical performance and operational mechanisms are emphasized.Additionally,the strategic design approaches for full-battery systems aimed at achieving high-performance aqueous proton energy storage are summarized.Finally,the challenges and potential opportunities for further enhancing the applications of APBs are proposed.
基金supported by the L2CM,UMR 7053,a partner of the Jean Barriol Institute at the Universit e de Lorraine(France)。
文摘Graphene quantum dots(GQDs)which are nanofragments of graphene with an average size between 2 and 50 nm have attracted much attention due to their outstanding properties such as high conductivity,high surface area,and good solubility in various solvents.GQDs combine the quantum confinement and edges effects and the properties of graphene.Therefore,GQDs offers a broad range of applications in various fields(medicine,energy conversion,and energy storage devices).This review will present the recent research based on the introduction of GQDs in batteries,supercapacitors,and microsupercapacitors as electrodes materials or mixed with an active material as an auxiliary agent.Tables,discussed on selected examples,summarize the electrochemical performances and finally,challenges and perspectives are recalled for the subsequent optimization strategy of electrode materials.This review is expected to appeal a broad interest on functional GQDs materials and promote the further development of high-performance energy storage device.
基金financially supported by the National Key Research and Development Program of China(No.2016YFA0202603)the National Basic Research Program of China(No.2013CB934103)+4 种基金the Program of Introducing Talents of Discipline to Universities(No.B17034)the National Natural Science Foundation of China(No.51521001)the National Natural Science Fund for Distinguished Young Scholars(No.51425204)the Fundamental Research Funds for the Central Universities(Nos.2016III001 and 2016-JL-004)the China Scholarship Council(No.201606955096)
文摘The development of alternative electrode materials with high energy densities and power densities for batteries has been actively pursued to satisfy the power demands for electronic devices and hybrid electric vehicles. Recently, antimony（Sb）-based intermetallic compounds have attracted considerable research interests as new candidate anode materials for high-performance lithium-ion batteries（LIBs） and sodium-ion batteries（SIBs） due to their high theoretical capacity and suitable operating voltage. However, these intermetallic systems undergo large volume change during charge and discharge processes, which prohibits them from practical application. The rational construction of advanced anode with unique structures has been proved to be an effective approach to enhance its electrochemical performance. This review highlights the recent progress in improving and understanding the electrochemical performances of various Sb-based intermetallic compound anodes. The developments of synthesis and construction of Sb-based intermetallic compounds are systematically summarized. The electrochemical performances of various Sb-based intermetallic compound anodes are compared in its typical applications（LIBs or SIBs）.
基金financially supported by the National Natural Science Foundation of China (No.51904216)the State Key Laboratory of Advanced Technology for Materials Synthesis and Processing (No.WUT:2022-KF-4)the National Innovation Training Program for College Students (No. 312040000254)。
文摘Owing to adjustable microstructure and stable physiochemical properties,carbon-based materials are regarded as promising materials as anodes for potassium-ion batteries(PlBs).Building amorphous structure and introducing defects are favorable methods to generate active sites and improve the electrochemical performances of carbon-based materials.In this work,we develop a facile carbonization method to prepare sulfur-doped amorphous carbon microspheres with hierarchical structure and modulated defects concentration(S-CM-700) for potassium storage.Benefiting from the special microstructure,S-CM-700 exhibits the optimal performance and obtains high reversible capacity of 199.6 mAh·g^(-1) at 100 mA·g^(-1),excellent rate property and prominent durability(0.0055%capacity decay per cycle during 1800 cycles).Kinetics analysis and electrochemical characterization are carried out to reveal that the potassium storage could be boosted by regulating the defect level,layer spacing and the content of sulfur-doping.The work provides a general synthesis approach to prepare sustainable carbon anodes for advanced PlBs.
基金financially supported by the National Key Research and Development Program of China (No.2022YFB2404300)the Key R&D Program of Hubei Province(No.2022BAA028)。
文摘The development of high-performance aqueous batteries calls for an in-depth knowledge of their chargedischarge redox and failure mechanism,as well as a systematic understanding of the dynamic evolution of microstructure,phase composition,chemical composition,and local chemical environment of the materials for battery.In-situ characterization technology is expected to understand and reveal the problems faced by aqueous rechargeable batteries,such as the dissolution of electrode materials,the growth of metal negative electrode dendrites,passivation,corrosion,side reactions and a series of problems.Based on this,typical in-situ characterization techniques and their basic mechanisms are summarized,including in-situ optical visualization,in-situ microscopy techniques(in-situ scanning electron microscopy(SEM),in-situ transmission electron microscopy(TEM)),in-situ X-ray techniques(in-situ X-ray diffraction(XRD),in-situ X-ray photoelectron spectroscopy(XPS),in-situ near-edge structural X-ray absorption spectroscopy(XANES)),and in-situ spectroscopy techniques(in-situ Raman spectroscopy,in-situ Fourier transform infrared(FTIR)).Moreover,some emerging techniques concerning aqueous battery research,especially gas evolution and materials dissolution issues,such as in-situ electrochemical quartz crystal microbalance(EQCM).in-situ fiber-optic sensing,in-situ gas chromatography(GC) are introduced.At last,the applications of advanced in-situ characterizations in future research of aqueous batteries are emphasized and discussed,along with some of the remaining challenges and possible solutions.
基金financed by the REGALOR project(Ressources Gazieres de Lorraine).
文摘The enhanced coalbed methane recovery using CO_(2) injection(CO_(2)-ECBM)is widely proposed as a way of achieving the energy transition and reducing atmospheric CO_(2),in areas such as the Lorrain basin in France,where heavy industry is responsible for huge CO_(2) emissions and coal mines have been closed for more than a decade.This paper deals with the feasibility of extracting methane from the Lorraine basin using CO_(2)-ECBM by comparing data from sorption isotherms,thermogravimetric analyses and breakthrough curves for two coal samples.One is bituminous(Box 18),from Folschviller(France)and is compared with another sub-bituminous(THO1)from La Houve(France),which is used as a reference because it was identified as a good candidate for CO_(2)-ECBM in a previous research program.The quantities of adsorbed gases(CO_(2)/CH_(4))obtained by sorption isotherms,thermogravimetry and CO,breakthrough curves showed that Box 18 adsorbs more CO_(2) and CH_(4) than THO1 due to its higher porosity and good affinity for gases(CO_(2)/CH_(4)).Toth model fits the experimental CH_(4) and CO_(2) adsorption isotherms better,reflecting the fact that the adsorption surface of the coals studied is heterogeneous.Adsorption enthalpies obtained by calorimetry indicated physisorption for gas-coal interactions,with higher values for CO_(2) than for CH_(4).Thermogravimetric analyses and breakthrough curves carried out at up to 50%relative humidity showed that the adsorption capacity of CO_(2) decreases with increasing temperature and the presence of water,respectively.The compilation of these experimental data explained the adsorption process of the studied coals and revealed their advantages for CO_(2)-ECBM.
文摘By the functional B3LYP and M05-2X of DFT and in two bases set, more and more extended (6-311G and 6-311G (d, p)), theoretical study of antioxidant properties of four hydrazones was carried out. The calculations made concern the geometrical, spectroscopic and electronic parameters of the molecules. Analysis of the results relating to the geometrical parameters was carried out by calculating interatomic distances, relative errors between calculated values and those obtained experimentally by X-ray diffraction found in the literature. The 13C NMR spectra were calculated by GIAO (Gauge Including Atomic Orbitals) methods, and the results were subjected to statistical analysis by calculating Mean Absolute Deviation (MAD), Root Mean. Square (RMS) and the correlation coefficient (R2), in comparison with experimental spectra. The analysis of the results of calculations of various electronic parameters (hardness (η), softness (S), electronegativity (χ), electrophile index (ω), energy gap (HOMO-LUMO)) reveals that, overall, the methods M05-2X/6-311G (d, p) and B3LYP/6-311G (d, p) found that (R) - (?) - carvone salicylhydrazone (N2) is the most antioxidant molecule of the four molecules and also classify them according to their stability. This confirms the results obtained on the antitrypanosomal activity, the toxicity, the cytotoxicity and the selectivity of the synthesized compounds. ?
基金financial support from the National Key Research and Development Program of China(No.2022YFB2404300)the National Natural Science Foundation of China(Nos.22409153 and 52101269).
文摘Ether electrolytes for potassium-ion batteries exhibit a broader electrochemical window and greater applicability,yet most of them are high-concentration electrolytes with elevated cost.In this study,we propose the use of a weakly solvating cyclic ether electrolyte with tetrahydropyran(THP)as the solvent.This approach induces the formation of a thin and dense inorganic-rich solid electrolyte interphase(SEI)film,which is accompanied by a decrease in the activation energy of electrode interfacial reactions due to the weak ligand binding of THP with K^(+).Density functional theory(DFT)simulations also corroborate the hypothesis that K^(+)has a lower binding energy with THP.During potassium storage process,the phenomenon of solvent co-intercalation of graphite does not occur,which greatly reduces the destruction of the graphite structure and enables a superior electrochemical performance and enhanced cycling stability at a lower concentration(2 M).At a current density of 0.2 C(55.8 mA·g^(-1)),the battery can be stably cycled for 800 cycles(approximately 8 months)with a specific capacity of 171.8 mAh·g^(-1).This study provides a new ether-based electrolyte for potassium ion batteries and effectively reduces the electrolyte cost,which is expected to inspire further development of energy storage batteries.
