空心MOFs及其衍生物因其高比表面积和完美的框架结构而受到越来越多的关注,这些特性决定了MOFs材料在储能和催化领域具有极大的应用潜力.然而,目前很少有研究针对空心MOFs的壳层进行修饰,如对壳层表面进行介孔修饰,这将赋予MOFs衍生材...空心MOFs及其衍生物因其高比表面积和完美的框架结构而受到越来越多的关注,这些特性决定了MOFs材料在储能和催化领域具有极大的应用潜力.然而,目前很少有研究针对空心MOFs的壳层进行修饰,如对壳层表面进行介孔修饰,这将赋予MOFs衍生材料一些新的性能.本文以50 nm尺寸的二氧化硅纳米球为模板,通过配位聚合诱导自组装工艺成功地合成了具有介孔壳层的空心MOFs(MIL-53(Fe)).紧密修饰的介孔结构使空心MOFs的壳层非常薄,从而实现了从MOFs到空心Fe3O4/碳材料的转化.将空心Fe3O4/碳材料作为阳极活性材料用于锂离子电池,该材料表现出优异的电化学性能.即使在0.1 A/g电流密度条件下循环200次,电容量仍可保持在1270 mA h/g.本研究为能源领域多功能化MOFs及其衍生物的设计和制备提供了新的思路.展开更多
基金supported by the National Natural Science Foundation of China(21577036,21377038,21237003,21677048)the National Basic Research Program of China(973 Program,2013CB632403)+1 种基金State Key Research Development Program of China(2016YFA0204200)the Fundamental Research Funds for the Central Universities(22A201514021)~~
基金supported by the State Key Research Development Program of China(2016YFA0204200)the National Natural Science Foundation of China(21822603,21577036,21773062)+3 种基金the Shanghai Pujiang Program(17PJD011)the Zhejiang public welfare technology research plan/rural agriculture(LGN18B010001)the Zhejiang provincial Collaborative Innovation Center of Agricultural Biological Resources Biochemical Manufacturing(NO:2016KF0005)the scientific research project of Zhejiang provincial education department(Y201839892)~~
基金supported by the National Natural Science Foundation of China(22325602,22176060)Program of Shanghai Academic/Technology Research Leader(23XD1421000)。
基金supported by the National Natural Science Foundation of China (22176060)Shanghai Municipal Science and Technology Major Project (2018SHZDZX03)+3 种基金the Program of Introducing Talents of Discipline to Universities (B16017)Science and Technology Commission of Shanghai Municipality (20DZ2250400)Shanghai Sailing Program (20YF1410600)the Fundamental Research Funds for the Central Universities (222201717003)。
基金supported by the National Natural Science Foundation of China (22176060 and 21822603)Shanghai Municipal Science and Technology Major Project (2018SHZDZX03)+1 种基金the Program of Introducing Talents of Discipline to Universities (B16017)the Science and Technology Commission of Shanghai Municipality (20DZ2250400)。
基金supported by the State Key Research Development Program of China(2016YFA0204200)The National Natural Science Foundation of China(21822603,21811540394,5171101651,21677048,21773062,and 21577036)+1 种基金Shanghai Pujiang Program(17PJD011)the Fundamental Research Funds for the Central Universities(22A201514021).
文摘空心MOFs及其衍生物因其高比表面积和完美的框架结构而受到越来越多的关注,这些特性决定了MOFs材料在储能和催化领域具有极大的应用潜力.然而,目前很少有研究针对空心MOFs的壳层进行修饰,如对壳层表面进行介孔修饰,这将赋予MOFs衍生材料一些新的性能.本文以50 nm尺寸的二氧化硅纳米球为模板,通过配位聚合诱导自组装工艺成功地合成了具有介孔壳层的空心MOFs(MIL-53(Fe)).紧密修饰的介孔结构使空心MOFs的壳层非常薄,从而实现了从MOFs到空心Fe3O4/碳材料的转化.将空心Fe3O4/碳材料作为阳极活性材料用于锂离子电池,该材料表现出优异的电化学性能.即使在0.1 A/g电流密度条件下循环200次,电容量仍可保持在1270 mA h/g.本研究为能源领域多功能化MOFs及其衍生物的设计和制备提供了新的思路.