文献类型：期刊文献

英文题名：One-pot construction of highly oriented Co-MOF nanoneedle arrays on Co foam for high-performance supercapacitor

作者：Zhao, Chongjun[1];Ding, Yanzhen[1];Zhu, Zhaoqiang[1];Han, Shufan[1];Zhao, Chunhua[1];Chen, Guorong[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Ultrafine Mat, Shanghai Key Lab Adv Polymer Mat,Minist Educ, Shanghai 200237, Peoples R China

年份：2021

卷号：32

期号：39

外文期刊名：NANOTECHNOLOGY

收录：;EI(收录号：20213010679603);WOS:【SCI-EXPANDED(收录号:WOS:000671439300001)】；

基金：We are grateful for the support of Natural Science Foundation of Shanghai (No. 19ZR1413000, 13ZR1411900), Shanghai Alliance Plan (No. LM201881, LM201751), Shanghai Key Laboratory Project (08DZ2230500), and Shanghai Leading Academic Discipline Project (B502). We also thank Research Center of Analysis and Test of East China University of Science and Technology for the help on the characterization.

语种：英文

外文关键词：highly oriented; Co-MOF; nanoneedle arrays; solvothermal; supercapacitor

摘要：Highly oriented Co-MOF nanoneedle arrays are in situ constructed on Co foam (Co-MOF@Co) by using a one-pot solvothermal strategy. As-prepared Co-MOF@Co can be directly served as a binder-free electrode for supercapacitor, which exhibits wonderful electrochemical performances, i.e. high specific capacitance (12783.0 mF cm(-2) or 1164.2 F g(-1)), exceptional cycling stability (90.5% retention over 10 000 cycles at 250 mA cm(-2)) with a loading of 10.98 mg cm(-2). Meanwhile, an asymmetric supercapacitor of AC//Co-MOF@Co delivers a high ratability (87% retention upon ten-fold current density) and high energy density of 43.4 W h kg(-1) at the power density of 145.1 W kg(-1).