Lead-free inorganic copper-silver-bismuth-halide materials have attracted more and more attention due to their environmental friendliness,high element abundance,and low cost.Here,we developed a strategy of one-step ga...Lead-free inorganic copper-silver-bismuth-halide materials have attracted more and more attention due to their environmental friendliness,high element abundance,and low cost.Here,we developed a strategy of one-step gas-solid-phase diffusioninduced reaction to fabricate a series of bandgap-tunable Cu_(a)Agm_(1)Bim_(2)I_(n)/CuI bilayer films due to the atomic diffusion effect for the first time.By designing and regulating the sputtered Cu/Ag/Bi metal film thickness,the bandgap of Cu_(a)Agm_(1)Bim_(2)I_(n)/CuI could be reduced from 2.06 to 1.78 eV.Solar cells with the structure of FTO/TiO_(2)/Cu_(a)Agm_(1)Bim_(2)I_(n)/CuI/carbon were constructed,yielding a champion power conversion efficiency of 2.76%,which is the highest reported for this class of materials owing to the bandgap reduction and the peculiar bilayer structure.The current work provides a practical path for developing the next generation of efficient,stable,and environmentally friendly photovoltaic materials.展开更多
Considering sustainable development factors such as element abundance,cost,environmental friendliness,and stability,the research and development of novel inorganic non-lead perovskites are very significant.Copper-silv...Considering sustainable development factors such as element abundance,cost,environmental friendliness,and stability,the research and development of novel inorganic non-lead perovskites are very significant.Copper-silver-bismuth iodide(CABI)is a promising solar cell material with halide perovskite genes,possessing eco-friendly,element-rich,and cost-effective characteristics.The fabrication of high-quality CABI films with tailored compositions still poses a substantial hurdle.We developed a CuAgBi_(2)I_(8) material that effectively reduced the bandgap to 1.69 eV by optimizing Bi distribution to create an environment conducive to insitu redox reactions of Bi with I_(2),Cu,and Ag via vapor-phase synthesis.This strategy proved highly effective in synthesizing high-quality CuAgBi_(2)I_(8) compound,accompanied by significant improvements in film quality,including enhanced crystallinity,minimized defects,and reduced non-radiative recombination.The crystal structure of CuAgBi_(2)I_(8) and mechanisms of elemental reactions and diffusion are discussed.Devices featuring the structure FTO/c-TiO_(2)/m-TiO_(2)/CuAgBi_(2)I_(8)/CuI/Spiro-OMeTAD/carbon achieved a champion efficiency of 3.21%,the highest for CABI solar cells.This work provides a novel idea and approach to governing the gas-solid element diffusion and reaction for highquality CABI and related halide perovskite films.展开更多
Due to the inherent toxicity of lead(Pb)and the severe structural instability of lead halide perovskites(LHPs),the advancement of LHPs solar cells(LHPSCs)has been significantly impeded.Consequently,the search for envi...Due to the inherent toxicity of lead(Pb)and the severe structural instability of lead halide perovskites(LHPs),the advancement of LHPs solar cells(LHPSCs)has been significantly impeded.Consequently,the search for environmentally friendly alternative materials has become a key focus of current research.Bismuth(Bi)halide perovskites(BHPs)have gained considerable attention as viable alternatives in photovoltaic(PV)applications owing to their lower toxicity,excellent PV performance,and tunable structural properties.This review categorizes BHPs based on their elemental composition into ternary A_(a)Bi_(b)X_(a^+3b)(A=MA^(+),FA^(+),Ag^(+),Cu^(+),Cs^(+);X=Br^(−),Cl^(−),I^(−))and quaternary A_(2)AgBiX_(6)(A=Cs^(+),Cu^(+);X=Br^(−),Cl^(−),I^(−))structures,as well as CuaAgbBicId,and presents a detailed overview of the current research progress and future development prospects of these materials in the field of solar cells.Furthermore,strategies for preparing high-performance BHP solar cells(BHPSCs)are summarized,addressing aspects such as fabrication process,component engineering and additive engineering,interface modification and device structure optimization.Through this review,we strive to establish a systematic framework for a comprehensive understanding of the current research on BHPs and their potential applications in PV field,and offer reference and guidance for future research and development.展开更多
This paper reviews the current research status,challenges,and prospects of applying large language models(LLMs)in carbon capture technologies.The review emphasizes the importance of interdisciplinary research,integrat...This paper reviews the current research status,challenges,and prospects of applying large language models(LLMs)in carbon capture technologies.The review emphasizes the importance of interdisciplinary research,integrating AI into chemistry,engineering,and environmental science to address complex challenges in carbon capture.It provides a detailed analysis of how LLMs can be utilized across various stages of carbon capture,from experimental design to industry implementation,showcasing their potential to accelerate innovation.It also reveals the use of LLMs to support gathering and analyzing sustainable information,such as carbon tax,carbon footprint,and social analysis.LLMs not only show great potential in designing and discovering materials for carbon capture technologies but also are promising to accelerate the whole industry's development through their powerful data processing and pattern recognition capabilities.In addition,the review paper also discusses challenges in the application of LLMs for carbon capture technologies and future directions and prospects.展开更多
Although Cu possesses many unique advantages for electrocatalytic CO_(2) reduction reaction(CO_(2)RR),it is not suitable for electrosynthesis of urea from CO_(2) and NO3−because of high energy barriers for the formati...Although Cu possesses many unique advantages for electrocatalytic CO_(2) reduction reaction(CO_(2)RR),it is not suitable for electrosynthesis of urea from CO_(2) and NO3−because of high energy barriers for the formation of ^(*)COOH and ^(*)CO intermediates and C-N bonds.Herein,Cr_(2)O_(3) nanoparticle(NP)/Cu nanosheet(NS)heterojunction electrocatalysts are reported for highly efficient electrocatalytic co-reduction of CO_(2) and NO3−toward urea production.The strongly coupled heterostructure interface between Cr_(2)O_(3) NPs and Cu NSs exhibits synergistic effect and optimizes the adsorption of intermediates.The resultant heterojunction electrocatalysts could achieve a high urea Faradaic efficiency(FEurea)of 62%at an ultralow applied potential of 0 V vs.reversible hydrogen electrode(RHE),which is among the best results reported to date.Moreover,the electrocatalysts showed good recycling stability.The in-situ Fourier transform infrared(FTIR)spectroscopy and density functional theory(DFT)calculations revealed that the Cr_(2)O_(3) NPs/Cu NSs heterostructure could not only reduce formation energy barriers of ^(*)COOH and ^(*)CO intermediates but also promote the coupling of ^(*)CO and ^(*)NH_(2) to form C-N bonds,leading to a high FEurea.This study demonstrates a heterojunction engineering strategy for the rational design of high-performance Cu-based electrocatalysts for urea generation.展开更多
基金supported by National Natural Science Foundation of China(Grant No.52072327,62074052,61874159)Zhongyuan Thousand Talents(Zhongyuan Scholars)Program of Henan Province(202101510004)+6 种基金Higher Education and Teaching Reformation Project(2014SJGLX064)Academic Degrees&Graduate Education Reform Project of Henan Province(2021SJGLX060Y)Key research and development projects of Universities in Henan Province(20A140026)the Scientific Research Innovation Team of Xuchang University(2022CXTD008)Science and Technology Project of Henan Province(222102230009).L.Ding thanks the National Key Research and Development Program of China(2022YFB3803300)the open research fund of Songshan Lake Materials Laboratory(2021SLABFK02)the National Natural Science Foundation of China(21961160720).
文摘Lead-free inorganic copper-silver-bismuth-halide materials have attracted more and more attention due to their environmental friendliness,high element abundance,and low cost.Here,we developed a strategy of one-step gas-solid-phase diffusioninduced reaction to fabricate a series of bandgap-tunable Cu_(a)Agm_(1)Bim_(2)I_(n)/CuI bilayer films due to the atomic diffusion effect for the first time.By designing and regulating the sputtered Cu/Ag/Bi metal film thickness,the bandgap of Cu_(a)Agm_(1)Bim_(2)I_(n)/CuI could be reduced from 2.06 to 1.78 eV.Solar cells with the structure of FTO/TiO_(2)/Cu_(a)Agm_(1)Bim_(2)I_(n)/CuI/carbon were constructed,yielding a champion power conversion efficiency of 2.76%,which is the highest reported for this class of materials owing to the bandgap reduction and the peculiar bilayer structure.The current work provides a practical path for developing the next generation of efficient,stable,and environmentally friendly photovoltaic materials.
基金National Natural Science Foundation of China,Grant/Award Numbers:52472255,52072327,22309158Science and Technology Project of Henan Province,Grant/Award Number:252102230120+3 种基金Higher Education and Teaching Reformation Project,Grant/Award Number:2024SJGLX0451Academic Degrees&Graduate Education Reform Project of Henan Province,Grant/Award Number:YJS2022JD34Key Research and Development Projects of Universities in Henan Province,Grant/Award Number:23B430009Natural Science Foundation of Henan Province,Grant/Award Number:232300420099。
文摘Considering sustainable development factors such as element abundance,cost,environmental friendliness,and stability,the research and development of novel inorganic non-lead perovskites are very significant.Copper-silver-bismuth iodide(CABI)is a promising solar cell material with halide perovskite genes,possessing eco-friendly,element-rich,and cost-effective characteristics.The fabrication of high-quality CABI films with tailored compositions still poses a substantial hurdle.We developed a CuAgBi_(2)I_(8) material that effectively reduced the bandgap to 1.69 eV by optimizing Bi distribution to create an environment conducive to insitu redox reactions of Bi with I_(2),Cu,and Ag via vapor-phase synthesis.This strategy proved highly effective in synthesizing high-quality CuAgBi_(2)I_(8) compound,accompanied by significant improvements in film quality,including enhanced crystallinity,minimized defects,and reduced non-radiative recombination.The crystal structure of CuAgBi_(2)I_(8) and mechanisms of elemental reactions and diffusion are discussed.Devices featuring the structure FTO/c-TiO_(2)/m-TiO_(2)/CuAgBi_(2)I_(8)/CuI/Spiro-OMeTAD/carbon achieved a champion efficiency of 3.21%,the highest for CABI solar cells.This work provides a novel idea and approach to governing the gas-solid element diffusion and reaction for highquality CABI and related halide perovskite films.
基金funded by the National Natural Science Foundation of China(Nos.52472255,52072327,and 22309158)Higher Education and Teaching Reformation Project(No.2014SJGLX064)+2 种基金Key Scientific Research Project of Higher Education in Henan Province(No.25A150036)Scientific Research Project of Xuchang University(No.2025ZD005)Science and Technology Project of Henan Province(No.252102230120).
文摘Due to the inherent toxicity of lead(Pb)and the severe structural instability of lead halide perovskites(LHPs),the advancement of LHPs solar cells(LHPSCs)has been significantly impeded.Consequently,the search for environmentally friendly alternative materials has become a key focus of current research.Bismuth(Bi)halide perovskites(BHPs)have gained considerable attention as viable alternatives in photovoltaic(PV)applications owing to their lower toxicity,excellent PV performance,and tunable structural properties.This review categorizes BHPs based on their elemental composition into ternary A_(a)Bi_(b)X_(a^+3b)(A=MA^(+),FA^(+),Ag^(+),Cu^(+),Cs^(+);X=Br^(−),Cl^(−),I^(−))and quaternary A_(2)AgBiX_(6)(A=Cs^(+),Cu^(+);X=Br^(−),Cl^(−),I^(−))structures,as well as CuaAgbBicId,and presents a detailed overview of the current research progress and future development prospects of these materials in the field of solar cells.Furthermore,strategies for preparing high-performance BHP solar cells(BHPSCs)are summarized,addressing aspects such as fabrication process,component engineering and additive engineering,interface modification and device structure optimization.Through this review,we strive to establish a systematic framework for a comprehensive understanding of the current research on BHPs and their potential applications in PV field,and offer reference and guidance for future research and development.
基金Shenzhen Polytechnic Research Fund(No.6023310023K)the Science and Technology Project of Henan Province(No.252102230120)for their financial support.
文摘This paper reviews the current research status,challenges,and prospects of applying large language models(LLMs)in carbon capture technologies.The review emphasizes the importance of interdisciplinary research,integrating AI into chemistry,engineering,and environmental science to address complex challenges in carbon capture.It provides a detailed analysis of how LLMs can be utilized across various stages of carbon capture,from experimental design to industry implementation,showcasing their potential to accelerate innovation.It also reveals the use of LLMs to support gathering and analyzing sustainable information,such as carbon tax,carbon footprint,and social analysis.LLMs not only show great potential in designing and discovering materials for carbon capture technologies but also are promising to accelerate the whole industry's development through their powerful data processing and pattern recognition capabilities.In addition,the review paper also discusses challenges in the application of LLMs for carbon capture technologies and future directions and prospects.
基金supported by the National Natural Science Foundation of China(Nos.52371196 and 21673160)the Central Government Guiding Local Science and Technology Development Funds(No.2025ZY012029).
文摘Although Cu possesses many unique advantages for electrocatalytic CO_(2) reduction reaction(CO_(2)RR),it is not suitable for electrosynthesis of urea from CO_(2) and NO3−because of high energy barriers for the formation of ^(*)COOH and ^(*)CO intermediates and C-N bonds.Herein,Cr_(2)O_(3) nanoparticle(NP)/Cu nanosheet(NS)heterojunction electrocatalysts are reported for highly efficient electrocatalytic co-reduction of CO_(2) and NO3−toward urea production.The strongly coupled heterostructure interface between Cr_(2)O_(3) NPs and Cu NSs exhibits synergistic effect and optimizes the adsorption of intermediates.The resultant heterojunction electrocatalysts could achieve a high urea Faradaic efficiency(FEurea)of 62%at an ultralow applied potential of 0 V vs.reversible hydrogen electrode(RHE),which is among the best results reported to date.Moreover,the electrocatalysts showed good recycling stability.The in-situ Fourier transform infrared(FTIR)spectroscopy and density functional theory(DFT)calculations revealed that the Cr_(2)O_(3) NPs/Cu NSs heterostructure could not only reduce formation energy barriers of ^(*)COOH and ^(*)CO intermediates but also promote the coupling of ^(*)CO and ^(*)NH_(2) to form C-N bonds,leading to a high FEurea.This study demonstrates a heterojunction engineering strategy for the rational design of high-performance Cu-based electrocatalysts for urea generation.
