文献类型：期刊文献

英文题名：In situ synthesis of Mn3O4 on Ni foam/graphene substrate as a newly self-supported electrode for high supercapacitive performance

作者：Yang, Jie[1];Wang, Liujie[1];Ma, Zhihua[1];Wei, Mingdeng[2]

第一作者：杨杰

通讯作者：Ma, ZH[1];Wei, MD[2]

机构：[1]Xinxiang Univ, Coll Chem & Chem Engn, Xinxiang 450003, Henan, Peoples R China;[2]Fuzhou Univ, Inst Adv Energy Mat, Fuzhou 350002, Fujian, Peoples R China

第一机构：新乡学院化学化工学院

通讯机构：[1]corresponding author), Xinxiang Univ, Coll Chem & Chem Engn, Xinxiang 450003, Henan, Peoples R China;[2]corresponding author), Fuzhou Univ, Inst Adv Energy Mat, Fuzhou 350002, Fujian, Peoples R China.|[110713]新乡学院化学化工学院;[11071]新乡学院;

年份：2019

卷号：534

起止页码：665-671

外文期刊名：JOURNAL OF COLLOID AND INTERFACE SCIENCE

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000449235600069)】；

基金：This work was financially supported by the National Natural Science Foundation of China (NSFC 51701173) and the Key Research Project of Chinese Universities (18A530004).

语种：英文

外文关键词：NF/graphene/Mn3O4; In situ synthesis; Self-supported; Electrodeposition; Supercapacitor; Electrochemical performance

摘要：A newly self-supported electrode composed of Mn3O4 on Ni foam/graphene (NF/graphene/Mn3O4) was synthesized in situ by electrodeposition, and was used as a supercapacitor electrode for the first time. An ultrahigh specific capacitance of 630 Fg(-1) can be achieved at a current density of 0.5 Ag-1. The maximum energy density of 94.4 Wh kg(-1) can be achieved, and the capacitance retention can be maintained about 97% after 20,000 cycles at 10 Ag-1. The electrochemical properties, including specific capacitance, energy density and cycling performance, were better than those in previous reports on Mn3O4-graphene electrodes. Such an outstanding property may be attributed to its unique characteristics, such as self-supported structure, favorable electric conductivity and cellular-like porous morphology. (C) 2018 Elsevier Inc. All rights reserved.