Covalent organic frameworks derived hollow structured N-doped noble carbon for asymmetric-electrolyte Zn-air battery

查看全文 作　　者：Pingwei [1,2]Cai;Xinxin [1,2]Peng;Junheng [1]Huang;Jingchun [1]Jia;Xiang [1]Hu;Zhenhai [1]Wen

机构地区：[1]CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences;[2]University of Chinese Academy of Science

出　　处：《Science China Chemistry》索引2019年第62卷第3期,共8页

基　　金：supported by the 1000 Plan Professorship for Young Talents;Hundred Talents Program of Fujian Province;the Fujian Science and Technology Key Project (2016H0043);the National Natural Science Foundation of China (21703249, 21701175) 摘　　要：We report a relatively low-temperature molten salt strategy to prepare hollow structured N-doped noble carbon(h-NNC) with highly desirable features of ultra-large surface area(1957 m^2 g^(-1)) and high graphitization, endowing the h-NNC with high activity toward catalysis of oxygen reduction reaction in acidic medium. The h-NNC is applied as cathode catalyst of an asymmetrical-electrolyte Zn-air battery, which exhibits an open circuit voltage of 2.11 V, a power density up to 270 mW cm^(-2),and an energy density of 1279 W h kg^(-1), behaving advantages over the conventional Zn-air batteries. 关键词：NOBLE CARBON oxygen reduction reaction asvmmetric-electrolyte Zn-air BATTERY energy density

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Covalent organic frameworks derived hollow structured N-doped noble carbon for asymmetric-electrolyte Zn-air battery

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