To explore the impact of digital literacy on college students’entrepreneurial opportunity recognition,this study conducted a questionnaire survey using the Digital Literacy Scale,the Entrepreneurial Opportunity Recog...To explore the impact of digital literacy on college students’entrepreneurial opportunity recognition,this study conducted a questionnaire survey using the Digital Literacy Scale,the Entrepreneurial Opportunity Recognition Scale,and the Innovation and Entrepreneurship Education Scale.A total of 542 valid responses were collected.The results revealed a significant positive correlation between digital literacy and entrepreneurial opportunity recognition among college students(β=0.856,P<0.01).Further analysis indicated that innovation and entrepreneurship education plays a positive moderating role in this relationship(β=0.111,P<0.01).In other words,the higher the students’scores in innovation and entrepreneurship education,the stronger the relationship between digital literacy and their ability to recognize entrepreneurial opportunities.展开更多
For lithium-sulfur batteries(Li-S batteries),a high-content electrolyte typically can exacerbate the shuttle effect,while a lean electrolyte may lead to decreased Li-ion conductivity and reduced catalytic conversion e...For lithium-sulfur batteries(Li-S batteries),a high-content electrolyte typically can exacerbate the shuttle effect,while a lean electrolyte may lead to decreased Li-ion conductivity and reduced catalytic conversion efficiency,so achieving an appropriate electrolyte-to-sulfur ratio(E/S ratio)is essential for improving the battery cycling efficiency.A quasi-solid electrolyte(COF-SH@PVDF-HFP)with strong adsorption and high catalytic conversion was constructed for in situ covalent organic framework(COF)growth on highly polarized polyvinylidene fluoride-hexafluoropropylene(PVDF-HFP)fibers.COF-SH@PVDF-HFP enables efficient Li-ion conductivity with low-content liquid electrolyte and effectively suppresses the shuttle effect.The results based on in situ Fourier-transform infrared,in situ Raman,UV–Vis,X-ray photoelectron,and density functional theory calculations confirmed the high catalytic conversion of COF-SH layer containing sulfhydryl and imine groups for the lithium polysulfides.Lithium plating/stripping tests based on Li/COF-SH@PVDF-HFP/Li show excellent lithium compatibility(5 mAh cm^(-2) for 1400 h).The assembled Li-S battery exhibits excellent rate(2 C 688.7 mAh g^(-1))and cycle performance(at 2 C of 568.8 mAh g^(-1) with a capacity retention of 77.3%after 800 cycles).This is the first report to improve the cycling stability of quasi-solid-state Li-S batteries by reducing both the E/S ratio and the designing strategy of sulfhydryl-functionalized COF for quasi-solid electro-lytes.This process opens up the possibility of the high performance of solid-state Li-S batteries.展开更多
基金The 2022 Innovation and Entrepreneurship Education Reform and Practice Research Project of Youjiang Medical University for Nationalities“Research on the Education of Innovation and Entrepreneurship Concepts among Medical Students”(YYCXCY202203Z)The 2023 Guangxi Higher Education Undergraduate Teaching Reform Project“Research on the Construction of Practical Courses for Innovation and Entrepreneurship in Real-life Scenarios of Biomedicine and Health Industry Based on Multi-Collaborative Industry-Education Integration in Modern Industrial School”(2023JGA282)。
文摘To explore the impact of digital literacy on college students’entrepreneurial opportunity recognition,this study conducted a questionnaire survey using the Digital Literacy Scale,the Entrepreneurial Opportunity Recognition Scale,and the Innovation and Entrepreneurship Education Scale.A total of 542 valid responses were collected.The results revealed a significant positive correlation between digital literacy and entrepreneurial opportunity recognition among college students(β=0.856,P<0.01).Further analysis indicated that innovation and entrepreneurship education plays a positive moderating role in this relationship(β=0.111,P<0.01).In other words,the higher the students’scores in innovation and entrepreneurship education,the stronger the relationship between digital literacy and their ability to recognize entrepreneurial opportunities.
基金This research was supported by the National Natural Science Foundation of China(52202104)the Joint Funds of the Zhejiang Provincial Natural Science Foundation of China(LZY23B030002)+5 种基金the China Postdoctoral Science Foundation(2021T140433,2020M683408)the Quzhou Science and Technology Bureau Project(2022D015,2023D023)the International Cooperation Projects of Sichuan Provincial Department of Science and Technology(2021YFH0126)the Fundamental Research Funds for the Central Universities(ZYGX2020ZB016)the Key Research and Development Program of Yunnan Province China(202103AA080019)Yunnan Major Scientific and Technological Projects(202202AG050003).
文摘For lithium-sulfur batteries(Li-S batteries),a high-content electrolyte typically can exacerbate the shuttle effect,while a lean electrolyte may lead to decreased Li-ion conductivity and reduced catalytic conversion efficiency,so achieving an appropriate electrolyte-to-sulfur ratio(E/S ratio)is essential for improving the battery cycling efficiency.A quasi-solid electrolyte(COF-SH@PVDF-HFP)with strong adsorption and high catalytic conversion was constructed for in situ covalent organic framework(COF)growth on highly polarized polyvinylidene fluoride-hexafluoropropylene(PVDF-HFP)fibers.COF-SH@PVDF-HFP enables efficient Li-ion conductivity with low-content liquid electrolyte and effectively suppresses the shuttle effect.The results based on in situ Fourier-transform infrared,in situ Raman,UV–Vis,X-ray photoelectron,and density functional theory calculations confirmed the high catalytic conversion of COF-SH layer containing sulfhydryl and imine groups for the lithium polysulfides.Lithium plating/stripping tests based on Li/COF-SH@PVDF-HFP/Li show excellent lithium compatibility(5 mAh cm^(-2) for 1400 h).The assembled Li-S battery exhibits excellent rate(2 C 688.7 mAh g^(-1))and cycle performance(at 2 C of 568.8 mAh g^(-1) with a capacity retention of 77.3%after 800 cycles).This is the first report to improve the cycling stability of quasi-solid-state Li-S batteries by reducing both the E/S ratio and the designing strategy of sulfhydryl-functionalized COF for quasi-solid electro-lytes.This process opens up the possibility of the high performance of solid-state Li-S batteries.
