Joule heating(JH)synthesis has been widely applied to disperse atomic metals onto supports,thereby enhancing metal utilization efficiency and enabling precise control over the electronic structure at the atomic level....Joule heating(JH)synthesis has been widely applied to disperse atomic metals onto supports,thereby enhancing metal utilization efficiency and enabling precise control over the electronic structure at the atomic level.This method holds considerable promise for metal single-atom(SA)synthesis.This review systematically investigates and summarizes recent advancements in JH synthesis of metal SA-based functional materials.It begins by clarifying the JH fundamental principles,including the methodology for calculating heating temperatures.After concluding an overview on the development of the JH technique,it details the necessary equipment and systematically compares plate-type and tube-type heating apparatuses,highlighting their differences and respective application fields.The JH synthesis and traditional processes for SA materials synthesis are also compared to highlight the advantages of the JH technique.Furthermore,we conclude and compare various types of metal SA along with their corresponding JH synthesis parameters and diverse functional applications in the fields of catalysis and electromagnetic wave adsorption.Finally,we provide a brief conclusion and outlook and discuss emerging trends and challenges that could shape future research on metal SA-based functional materials by rapid JH synthesis.展开更多
Simultaneously improving the energy density and power density of electrochemical energy storage systems is the ultimate goal of electrochemical energy storage technology.An effective strategy to achieve this goal is t...Simultaneously improving the energy density and power density of electrochemical energy storage systems is the ultimate goal of electrochemical energy storage technology.An effective strategy to achieve this goal is to take advantage of the high capacity and rapid kinetics of electrochemical proton storage to break through the power limit of batteries and the energy limit of capacitors.This article aims to review the research progress on the physicochemical properties,electrochemical performance,and reaction mechanisms of electrode materials for electrochemical proton storage.According to the different charge storage mechanisms,the surface redox,intercalation,and conversion materials are classified and introduced in detail,where the influence of crystal water and other nanostructures on the migration kinetics of protons is clarified.Several reported advanced full cell devices are summarized to promote the commercialization of electrochemical proton storage.Finally,this review provides a framework for research directions of charge storage mechanism,basic principles of material structure design,construction strategies of full cell device,and goals of practical application for electrochemical proton storage.展开更多
Spin crossover in iron(Ⅱ)and iron(Ⅲ)complexes continues to receive much attention for the construction of molecular devices due to the presence of functionalities arising from their spin state switching behav ior.No...Spin crossover in iron(Ⅱ)and iron(Ⅲ)complexes continues to receive much attention for the construction of molecular devices due to the presence of functionalities arising from their spin state switching behav ior.Notably,some such compounds are associated with a light-induced excited spin-state trapping(LIESST)effect,which is responsible for the optical switching of their spin states.However,as opposed to iron(Ⅱ)complexes,reports of iron(Ⅲ)complexes that exhibit a LIESST effect are somewhat limited.This review presents an overview of the reported examples of SCO iron(Ⅲ)systems that display LIESST effects.展开更多
基金the National Natural Science Foundation of China(52472231,52311530113,W2521017)the Science and Technology Commission of Shanghai Municipality(22DZ1205600)the Central Guidance on Science and Technology Development Fund of Zhejiang Province(2024ZY01011).
文摘Joule heating(JH)synthesis has been widely applied to disperse atomic metals onto supports,thereby enhancing metal utilization efficiency and enabling precise control over the electronic structure at the atomic level.This method holds considerable promise for metal single-atom(SA)synthesis.This review systematically investigates and summarizes recent advancements in JH synthesis of metal SA-based functional materials.It begins by clarifying the JH fundamental principles,including the methodology for calculating heating temperatures.After concluding an overview on the development of the JH technique,it details the necessary equipment and systematically compares plate-type and tube-type heating apparatuses,highlighting their differences and respective application fields.The JH synthesis and traditional processes for SA materials synthesis are also compared to highlight the advantages of the JH technique.Furthermore,we conclude and compare various types of metal SA along with their corresponding JH synthesis parameters and diverse functional applications in the fields of catalysis and electromagnetic wave adsorption.Finally,we provide a brief conclusion and outlook and discuss emerging trends and challenges that could shape future research on metal SA-based functional materials by rapid JH synthesis.
基金supported by the National Natural Science Foundation of China (52072173)Jiangsu Province Outstanding Youth Fund (BK20200016)+1 种基金Jiangsu Specially-Appointed Professors ProgramLeading Edge Technology of Jiangsu Province (BK20202008)
文摘Simultaneously improving the energy density and power density of electrochemical energy storage systems is the ultimate goal of electrochemical energy storage technology.An effective strategy to achieve this goal is to take advantage of the high capacity and rapid kinetics of electrochemical proton storage to break through the power limit of batteries and the energy limit of capacitors.This article aims to review the research progress on the physicochemical properties,electrochemical performance,and reaction mechanisms of electrode materials for electrochemical proton storage.According to the different charge storage mechanisms,the surface redox,intercalation,and conversion materials are classified and introduced in detail,where the influence of crystal water and other nanostructures on the migration kinetics of protons is clarified.Several reported advanced full cell devices are summarized to promote the commercialization of electrochemical proton storage.Finally,this review provides a framework for research directions of charge storage mechanism,basic principles of material structure design,construction strategies of full cell device,and goals of practical application for electrochemical proton storage.
基金supported by KAKENHI Grant-in-Aid for Scientific Research(Grant No.JP17H01200(S.H.),JP18K14245(R.O.)).
文摘Spin crossover in iron(Ⅱ)and iron(Ⅲ)complexes continues to receive much attention for the construction of molecular devices due to the presence of functionalities arising from their spin state switching behav ior.Notably,some such compounds are associated with a light-induced excited spin-state trapping(LIESST)effect,which is responsible for the optical switching of their spin states.However,as opposed to iron(Ⅱ)complexes,reports of iron(Ⅲ)complexes that exhibit a LIESST effect are somewhat limited.This review presents an overview of the reported examples of SCO iron(Ⅲ)systems that display LIESST effects.
