A new electrode was prepared by using Pd implanted into nano-crystalline TiO2 and the character of photo-electrochemistry of implanted electrodes was investigated. The energy band structure of nano-crystalline TiO2 ha...A new electrode was prepared by using Pd implanted into nano-crystalline TiO2 and the character of photo-electrochemistry of implanted electrodes was investigated. The energy band structure of nano-crystalline TiO2 has not changed after implantation with Pd. The photo-current (i(ph)) of palladium implanted TiO2 nano-crystalline electrode is larger than that of pure TiO2 nanocrystalline electrode.展开更多
The climate crisis necessitates the development of non-fossil energy sources.Harnessing solar energy for fuel production shows promise and offers the potential to utilize existing energy infrastructure.However,solar f...The climate crisis necessitates the development of non-fossil energy sources.Harnessing solar energy for fuel production shows promise and offers the potential to utilize existing energy infrastructure.However,solar fuel production is in its early stages of development,constrained by low conversion efficiency and challenges in scaling up production.Concentrated solar energy(CSE)technology has matured alongside the rapid growth of solar thermal power plants.This review provides an overview of current CSE methods and solar fuel production,analyzes their integration compatibility,and delves into the theoretical mechanisms by which CSE impacts solar energy conversion efficiency and product selectivity in the context of photo-electrochemistry,thermochemistry,and photo-thermal co-catalysis for solar fuel production.The review also summarizes approaches to studying the photoelectric and photothermal effects of CSE.Lastly,it explores emerging novel CSE technology methods in the field of solar fuel production.展开更多
The production of hydrogen using renewable energy sources requires efficient and stable catalysts.However,the development of such catalysts is hindered by the lack of efficient photo/electrocatalysts for the hydrogen ...The production of hydrogen using renewable energy sources requires efficient and stable catalysts.However,the development of such catalysts is hindered by the lack of efficient photo/electrocatalysts for the hydrogen evolution reaction(HER)and the oxygen evolution reaction(OER),as well as an insufficient understanding of the reaction mechanisms.This review comprehensively summarizes recent progress in photo/electrochemical hydrogen production technology and fundamental knowledge of reaction mechanisms.Specifically,it discusses recent developments in carbon-based materials for water splitting,with a focus on photoelectrocatalysts.The review highlights advancements in C-doped metal oxides,carbon quantum dots(CQD),MOF/COF-derived carbon,carbon nanotubes,graphene,carbon nitride-based materials,and strategies to enhance their catalytic activity and conductivity.Furthermore,integrating carbon-based materials with semiconductors and co-catalysts is explored to optimize overall performance.We outline practical routes to improve charge transfer and stability across carbon-based photoelectrocatalysts,providing a concise roadmap toward scalable and sustainable water splitting.展开更多
Li-O_(2)batteries with an ultrahigh theoretical energy density of up to 3500 W·h/kg have drawn extensive attention as future energy storage technologies.However,large discharge/charge overpotentials(>1 V)and u...Li-O_(2)batteries with an ultrahigh theoretical energy density of up to 3500 W·h/kg have drawn extensive attention as future energy storage technologies.However,large discharge/charge overpotentials(>1 V)and unsatisfactory cycling performance are the main obstacles for practical applications.Recently,integrating photocatalysis into Li-O_(2)batteries has emerged as a promising method to mitigate overpotentials,but the rational design of photocathodes with excellent photoelectrochemical activity and stability remains challenging.This review focuses on recent research progress on the reaction mechanisms in photo-assisted Li-O_(2)batteries and the development of photocathodes.We present several strategies for tailoring catalytic materials from the perspectives of material selection and its catalytic performance optimization,aiming to provide a fundamental understanding and insights into the design of efficient photocathodes.The key challenges in constructing highperformance photocathodes and potential strategies were also discussed,offering insights for the development and application of efficient photocathodes in photo-assisted Li-O_(2)batteries.展开更多
Solar energy is considered the most promising renewable energy source.Solar cells can harvest and convert solar energy into electrical energy,which needs to be stored as chemical energy,thereby realizing a balanced su...Solar energy is considered the most promising renewable energy source.Solar cells can harvest and convert solar energy into electrical energy,which needs to be stored as chemical energy,thereby realizing a balanced supply and demand for energy.As energy storage devices for this purpose,newly developed photo-enhanced rechargeable metal batteries,through the internal integration of photovoltaic technology and high-energy-density metal batteries in a single device,can simplify device configuration,lower costs,and reduce external energy loss.This review focuses on recent progress regarding the working principles,device architectures,and performances of various closed-type and open-type photo-enhanced rechargeable devices based on metal batteries,including Li/Zn-ion,Li-S,and Li/Zn-I_(2),and Li/Zn-O_(2)/air,Li-CO_(2),and Na-O_(2) batteries.In addition to provide a fundamental understanding of photo-enhanced rechargeable devices,key challenges and possible strategies are also discussed.Finally,some perspectives are provided for further enhancing the overall performance of the proposed devices.展开更多
Carbon and nitrogen species-involved TiO2 （CN-TiO2） were systematically synthesized by thermal condensa- tion of cyanuric acid on the TiO2 surface. And the photocatalytic reactions for H2 production from sacrificial...Carbon and nitrogen species-involved TiO2 （CN-TiO2） were systematically synthesized by thermal condensa- tion of cyanuric acid on the TiO2 surface. And the photocatalytic reactions for H2 production from sacrificial aque- ous solutions were performed on several CN-TiO2 photocatalyst under visible-light irradiation. The photocatalytic activity of the CN-TiO2 was influenced by total amounts of carbon and nitrogen species, and the preferable activity was ten times higher than that of pristine carbon nitride. Here, the states of the CN-TiO2 photocatalyst were charac- terized by XPS, FT-IR and UV-Vis spectroscopy as well as DFT calculations. The photo-electrochemical measure- ments confirmed that the enhancement of H2 production is associated with effective charge separation under photo- excitation of highly dispersed carbon nitride on the TiO2 surface.展开更多
New functional materials of metal chalcophosphates have been receiving increasing attention due to their wide structural diversity and technologically promising properties.In this work,a quaternary selenophosphate,Cs_...New functional materials of metal chalcophosphates have been receiving increasing attention due to their wide structural diversity and technologically promising properties.In this work,a quaternary selenophosphate,Cs_(2)ZnP_(2)Se_(6),has been successfully prepared by the high-temperature solid state reactions with a modified reactive CsCl flux.Single-crystal X-ray diffraction analyses show that Cs2ZnP2Se6 crystallizes in triclinic space group P1^(-)with a=7.66000(10),b=7.712(7),c=12.7599(3)Å,α=96.911(18)°,β=104.367(14)°,γ=109.276(13)°,V=672.16Å^(3)and Z=2.The major structure feature is the one-dimensional(1D)chain comprised of alternating units of tetrahedrally coordinated Zn^(2+)ions to the ethane-like[P_(2)Se_(6)]^(4–)units,in which counterbalanced Cs cations are accommodated.Significantly,photo-electrochemical measurement indicated that the title compound was photo-responsive under visible-light illumination.Moreover,the optical gap of 2.67 eV for Cs_(2)ZnP_(2)Se_(6)was deduced from the UV/Vis reflectance spectroscopy and theoretical calculation shows an indirect band gap with an electronic transfer excitation of Se-4p to Zn-3d/4p and P-3p orbitals.This work presents not only a novel potential application of metal chalcophosphates,but also a facile approach to prepare alkali metal-containing chalcogenides.展开更多
基金This project was financially supported by the National Natural Science Foundation of China.
文摘A new electrode was prepared by using Pd implanted into nano-crystalline TiO2 and the character of photo-electrochemistry of implanted electrodes was investigated. The energy band structure of nano-crystalline TiO2 has not changed after implantation with Pd. The photo-current (i(ph)) of palladium implanted TiO2 nano-crystalline electrode is larger than that of pure TiO2 nanocrystalline electrode.
基金support by the National Key Research and Development Program of China(2022YFB3803600)the National Natural Science Foundation of China(No.52276212)+3 种基金the Natural Science Foundation of Jiangsu Province(No.BK20231211)the Suzhou Science and Technology Program(SYG202101)the Key Research and Development Program in Shaanxi Province of China(No.2023-YBGY-300)the China Fundamental Research Funds for the Central Universities.
文摘The climate crisis necessitates the development of non-fossil energy sources.Harnessing solar energy for fuel production shows promise and offers the potential to utilize existing energy infrastructure.However,solar fuel production is in its early stages of development,constrained by low conversion efficiency and challenges in scaling up production.Concentrated solar energy(CSE)technology has matured alongside the rapid growth of solar thermal power plants.This review provides an overview of current CSE methods and solar fuel production,analyzes their integration compatibility,and delves into the theoretical mechanisms by which CSE impacts solar energy conversion efficiency and product selectivity in the context of photo-electrochemistry,thermochemistry,and photo-thermal co-catalysis for solar fuel production.The review also summarizes approaches to studying the photoelectric and photothermal effects of CSE.Lastly,it explores emerging novel CSE technology methods in the field of solar fuel production.
基金supported by the Outsourced R&D Project of Korea Electric Power Corporation(KEPCO)(Grant number:R23XO04)supported by the Korea Institute for Advancement of Technology(KIAT)grant funded by the Ministry of Trade,Industry,and Energy(MOTIE),Republic of Korea,(P0025273)supported by the Korea Institute of Energy Technology Evaluation and Planning(KETEP)and the Ministry of Trade,Industry&Energy(MOTIE)of the Republic of Korea.(No.RS-2025-07852969).
文摘The production of hydrogen using renewable energy sources requires efficient and stable catalysts.However,the development of such catalysts is hindered by the lack of efficient photo/electrocatalysts for the hydrogen evolution reaction(HER)and the oxygen evolution reaction(OER),as well as an insufficient understanding of the reaction mechanisms.This review comprehensively summarizes recent progress in photo/electrochemical hydrogen production technology and fundamental knowledge of reaction mechanisms.Specifically,it discusses recent developments in carbon-based materials for water splitting,with a focus on photoelectrocatalysts.The review highlights advancements in C-doped metal oxides,carbon quantum dots(CQD),MOF/COF-derived carbon,carbon nanotubes,graphene,carbon nitride-based materials,and strategies to enhance their catalytic activity and conductivity.Furthermore,integrating carbon-based materials with semiconductors and co-catalysts is explored to optimize overall performance.We outline practical routes to improve charge transfer and stability across carbon-based photoelectrocatalysts,providing a concise roadmap toward scalable and sustainable water splitting.
基金supported by Singapore Ministry of Education under its AcRF Tier 2(MOE-T2EP10123-0001)Singapore National Research Foundation Investigatorship(NRF-NRFI08-2022-0009).
文摘Li-O_(2)batteries with an ultrahigh theoretical energy density of up to 3500 W·h/kg have drawn extensive attention as future energy storage technologies.However,large discharge/charge overpotentials(>1 V)and unsatisfactory cycling performance are the main obstacles for practical applications.Recently,integrating photocatalysis into Li-O_(2)batteries has emerged as a promising method to mitigate overpotentials,but the rational design of photocathodes with excellent photoelectrochemical activity and stability remains challenging.This review focuses on recent research progress on the reaction mechanisms in photo-assisted Li-O_(2)batteries and the development of photocathodes.We present several strategies for tailoring catalytic materials from the perspectives of material selection and its catalytic performance optimization,aiming to provide a fundamental understanding and insights into the design of efficient photocathodes.The key challenges in constructing highperformance photocathodes and potential strategies were also discussed,offering insights for the development and application of efficient photocathodes in photo-assisted Li-O_(2)batteries.
基金The authors thank for the financial support from the Natural Science Foundation of Jiangsu Province(Nos.BK20190413 and BK20210616)the China Postdoctoral Science Foundation(No.2019M661825)+3 种基金Jiangsu Key Laboratory of Electrochemical Energy-Storage Technologies(No.EEST2021-2)the JST-ERATO Yamauchi Materials Space-Tectonics Project(No.JPMJER2003)R.Z.M.acknowledges support from JSPS KAKENNHI(No.18H03869)H.R.X.acknowledges support from JSPS Postdoctoral Fellowship Program for Foreign Researchers(No.20F20336).
文摘Solar energy is considered the most promising renewable energy source.Solar cells can harvest and convert solar energy into electrical energy,which needs to be stored as chemical energy,thereby realizing a balanced supply and demand for energy.As energy storage devices for this purpose,newly developed photo-enhanced rechargeable metal batteries,through the internal integration of photovoltaic technology and high-energy-density metal batteries in a single device,can simplify device configuration,lower costs,and reduce external energy loss.This review focuses on recent progress regarding the working principles,device architectures,and performances of various closed-type and open-type photo-enhanced rechargeable devices based on metal batteries,including Li/Zn-ion,Li-S,and Li/Zn-I_(2),and Li/Zn-O_(2)/air,Li-CO_(2),and Na-O_(2) batteries.In addition to provide a fundamental understanding of photo-enhanced rechargeable devices,key challenges and possible strategies are also discussed.Finally,some perspectives are provided for further enhancing the overall performance of the proposed devices.
文摘Carbon and nitrogen species-involved TiO2 （CN-TiO2） were systematically synthesized by thermal condensa- tion of cyanuric acid on the TiO2 surface. And the photocatalytic reactions for H2 production from sacrificial aque- ous solutions were performed on several CN-TiO2 photocatalyst under visible-light irradiation. The photocatalytic activity of the CN-TiO2 was influenced by total amounts of carbon and nitrogen species, and the preferable activity was ten times higher than that of pristine carbon nitride. Here, the states of the CN-TiO2 photocatalyst were charac- terized by XPS, FT-IR and UV-Vis spectroscopy as well as DFT calculations. The photo-electrochemical measure- ments confirmed that the enhancement of H2 production is associated with effective charge separation under photo- excitation of highly dispersed carbon nitride on the TiO2 surface.
基金supported by the National Natural Science Foundation of China (21771179 and 21301175)the Natural Science Foundation of Fujian Province (2019J01133)
文摘New functional materials of metal chalcophosphates have been receiving increasing attention due to their wide structural diversity and technologically promising properties.In this work,a quaternary selenophosphate,Cs_(2)ZnP_(2)Se_(6),has been successfully prepared by the high-temperature solid state reactions with a modified reactive CsCl flux.Single-crystal X-ray diffraction analyses show that Cs2ZnP2Se6 crystallizes in triclinic space group P1^(-)with a=7.66000(10),b=7.712(7),c=12.7599(3)Å,α=96.911(18)°,β=104.367(14)°,γ=109.276(13)°,V=672.16Å^(3)and Z=2.The major structure feature is the one-dimensional(1D)chain comprised of alternating units of tetrahedrally coordinated Zn^(2+)ions to the ethane-like[P_(2)Se_(6)]^(4–)units,in which counterbalanced Cs cations are accommodated.Significantly,photo-electrochemical measurement indicated that the title compound was photo-responsive under visible-light illumination.Moreover,the optical gap of 2.67 eV for Cs_(2)ZnP_(2)Se_(6)was deduced from the UV/Vis reflectance spectroscopy and theoretical calculation shows an indirect band gap with an electronic transfer excitation of Se-4p to Zn-3d/4p and P-3p orbitals.This work presents not only a novel potential application of metal chalcophosphates,but also a facile approach to prepare alkali metal-containing chalcogenides.
