文献类型：期刊文献

英文题名：In-situ synthesis of Ni-MOF@CNT on graphene/Ni foam substrate as a novel self-supporting hybrid structure for all-solid-state supercapacitors with a high energy density

作者：Yang, Jie[1];Li, Pengfa;Wang, Liujie;Guo, Xiaowei;Guo, Jiao;Liu, Sheng

第一作者：Yang, Jie;杨杰

通讯作者：Yang, J[1]

机构：[1]Xinxiang Univ, Coll Chem & Chem Engn, Xinxiang 450003, Henan, Peoples R China; Henan Photoelectrocatalyt Mat & Micronano Applica, Xinxiang 450003, Henan, 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.|[110713]新乡学院化学化工学院;[11071]新乡学院;

年份：2019

卷号：848

外文期刊名：JOURNAL OF ELECTROANALYTICAL CHEMISTRY

收录：;EI(收录号：20193007224465);Scopus(收录号：2-s2.0-85069616045);WOS:【SCI-EXPANDED(收录号:WOS:000504505400032)】；

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

语种：英文

外文关键词：MOF; All-solid-state supercapacitors; CNT; Self-supporting

摘要：A new hybrid structure of Ni-MOF and CNT (Ni-MOF@CNT) was firstly in-situ synthesized on the graphene/Ni foam (GN) substrate and a novel self-supporting material of Ni-MOF@CNT/GN was obtained. Furthermore, its application as a new electrode material for all-solid-state supercapacitors was also investigated for the first time. An ultrahigh energy density of 0.3396 mWhcm(-2) can be achieved as the best value reported for MOF-based allsolid-state supercapacitors to date. Moreover, high capacitance values of 898 and 230 mFcm(-2) can be obtained at 1 and 20 mAcm(-2), respectively, and a high retention value of 93% can be also maintained even after 4000 cycles. Such a high electrochemical performance may be ascribed to high conductivity of the CNT, electron transport effect of the graphene layer, porous characteristic of the Ni-MOF@CNT/GN material and changes of oxygen-containing groups in the hybrid structure.