Nowadays,education and teaching have become a hot topic,and teaching in colleges and universities is facing a brand-new development direction.Principles of Concrete Structure Design,as one of the main courses,transmit...Nowadays,education and teaching have become a hot topic,and teaching in colleges and universities is facing a brand-new development direction.Principles of Concrete Structure Design,as one of the main courses,transmits professional knowledge for students,enhances the students’professional ability,and further carries out in-depth research on the course to bring a better teaching effect for students.The article mainly focuses on the research of the principles of concrete structure design course,conducts an analysis of the teaching characteristics of the principles of concrete structure design course,and reasonably sets the teaching content from the optimization of the course teaching objectives;innovative course teaching methods can deepen the effect of knowledge understanding;reform of experimental practice teaching can lay down the effect of the internalization of knowledge,etc.The in-depth description and discussion of the relevant aspects of the research aim to provide guidelines for related research.展开更多
Escalating global energy demand has spurred intensive research into alternative energy technologies,among which proton-exchange membrane fuel cells(PEMFCs)stand out for their high efficiency and environmental benignit...Escalating global energy demand has spurred intensive research into alternative energy technologies,among which proton-exchange membrane fuel cells(PEMFCs)stand out for their high efficiency and environmental benignity.However,conventional proton conductors like Nafion®face critical limitations,including water-dependent conductivity,high production costs,and poor performance under hightemperature/low-humidity conditions.Metal-organic frameworks(MOFs),with their tunable structures,high porosity,and diverse functionalization,have emerged as promising candidates to overcome these challenges.This review systematically summarizes recent progress in membrane-shaped MOF proton conductors,focusing on three mainstream fabrication strategies:MOF-polymer blend membranes,MOF glass membranes,and substrate-deposited MOF films.The proton conduction mechanisms,structural design principles,and performance optimization strategies for each type are discussed.Additionally,the current challenges and future perspectives in advancing MOF-based membranes for practical PEMFC applications are highlighted.展开更多
文摘Nowadays,education and teaching have become a hot topic,and teaching in colleges and universities is facing a brand-new development direction.Principles of Concrete Structure Design,as one of the main courses,transmits professional knowledge for students,enhances the students’professional ability,and further carries out in-depth research on the course to bring a better teaching effect for students.The article mainly focuses on the research of the principles of concrete structure design course,conducts an analysis of the teaching characteristics of the principles of concrete structure design course,and reasonably sets the teaching content from the optimization of the course teaching objectives;innovative course teaching methods can deepen the effect of knowledge understanding;reform of experimental practice teaching can lay down the effect of the internalization of knowledge,etc.The in-depth description and discussion of the relevant aspects of the research aim to provide guidelines for related research.
基金supported by the National Natural Science Foundation of China(52207238)the,(24KJB430011)the Jiangsu University Senior Talent Launch Fund.
文摘Escalating global energy demand has spurred intensive research into alternative energy technologies,among which proton-exchange membrane fuel cells(PEMFCs)stand out for their high efficiency and environmental benignity.However,conventional proton conductors like Nafion®face critical limitations,including water-dependent conductivity,high production costs,and poor performance under hightemperature/low-humidity conditions.Metal-organic frameworks(MOFs),with their tunable structures,high porosity,and diverse functionalization,have emerged as promising candidates to overcome these challenges.This review systematically summarizes recent progress in membrane-shaped MOF proton conductors,focusing on three mainstream fabrication strategies:MOF-polymer blend membranes,MOF glass membranes,and substrate-deposited MOF films.The proton conduction mechanisms,structural design principles,and performance optimization strategies for each type are discussed.Additionally,the current challenges and future perspectives in advancing MOF-based membranes for practical PEMFC applications are highlighted.
