高纯石英(high-purity quartz)是硅产业高端产品的关键性基础材料,广泛应用于电子信息、新能源、新材料等领域,是世界稀缺、中国短缺的战略性资源,在国家资源安全保障方面具有重要地位(汪灵等,2022)。目前,对高纯石英界定尚无统一的标准...高纯石英(high-purity quartz)是硅产业高端产品的关键性基础材料,广泛应用于电子信息、新能源、新材料等领域,是世界稀缺、中国短缺的战略性资源,在国家资源安全保障方面具有重要地位(汪灵等,2022)。目前,对高纯石英界定尚无统一的标准,国际上一般认为高纯石英SiO_(2)含量大于99.995%(4N5级),国内则通常认为高纯石英SiO_(2)含量大于99.99%(4N级)(Müller et al.,2012;Götze and Ramseyer,2012;张亮等,2024)。展开更多
With the acceleration of advanced industrialization and urbanization,the environment is deteriorating rapidly,and non-renewable energy resources are depleted.The gradual advent of potential clean energy storage techno...With the acceleration of advanced industrialization and urbanization,the environment is deteriorating rapidly,and non-renewable energy resources are depleted.The gradual advent of potential clean energy storage technologies is particularly urgent.Electrochemical energy storage technologies have been widely used in multiple fields,especially supercapacitors and rechargeable batteries,as vital elements of storing renewable energy.In recent years,two-dimensional material MXene has shown great potential in energy and multiple application fields thanks to its excellent electrical properties,large specific surface area,and tunability.Based on the layered materials of MXene,researchers have successfully achieved the dual functions of energy storage and conversion by adjusting the surface terminals at the Fermi level.It is worth noting that compared with other two-dimensional materials,MXene has more active sites on the basal plane,showing excellent catalytic performance.In contrast,other two-dimensional materials have catalytic activity only at the edge sites.This article comprehensively overviews the synthesis process,structural characteristics,modification methods for MXene-based polymer materials,and their applications in electrochemical energy storage.It also briefly discusses the potential of MXene-polymer materials in electromagnetic shielding technology and sensors and looks forward to future research directions.展开更多
文摘高纯石英(high-purity quartz)是硅产业高端产品的关键性基础材料,广泛应用于电子信息、新能源、新材料等领域,是世界稀缺、中国短缺的战略性资源,在国家资源安全保障方面具有重要地位(汪灵等,2022)。目前,对高纯石英界定尚无统一的标准,国际上一般认为高纯石英SiO_(2)含量大于99.995%(4N5级),国内则通常认为高纯石英SiO_(2)含量大于99.99%(4N级)(Müller et al.,2012;Götze and Ramseyer,2012;张亮等,2024)。
基金supported by the Natural Science Basic Research Plan in the Shaanxi Province of China(No.2023-JC-ZD-25)Shaanxi Province(Qin ChuangYuan)“Scientist+Engineer”Team Building(No.2022KXJ-040)+1 种基金Shaanxi Provincial Department of Education Key Scientific Research Project(No.22JY024)Science and Technology Guidance Project Plan of China National Textile and Apparel Council(No.2022038,2023018).
文摘With the acceleration of advanced industrialization and urbanization,the environment is deteriorating rapidly,and non-renewable energy resources are depleted.The gradual advent of potential clean energy storage technologies is particularly urgent.Electrochemical energy storage technologies have been widely used in multiple fields,especially supercapacitors and rechargeable batteries,as vital elements of storing renewable energy.In recent years,two-dimensional material MXene has shown great potential in energy and multiple application fields thanks to its excellent electrical properties,large specific surface area,and tunability.Based on the layered materials of MXene,researchers have successfully achieved the dual functions of energy storage and conversion by adjusting the surface terminals at the Fermi level.It is worth noting that compared with other two-dimensional materials,MXene has more active sites on the basal plane,showing excellent catalytic performance.In contrast,other two-dimensional materials have catalytic activity only at the edge sites.This article comprehensively overviews the synthesis process,structural characteristics,modification methods for MXene-based polymer materials,and their applications in electrochemical energy storage.It also briefly discusses the potential of MXene-polymer materials in electromagnetic shielding technology and sensors and looks forward to future research directions.
