ZnO@MOF@PANI core-shell nanoarrays on carbon cloth for high-performance supercapacitor electrodes

作     者：Chunmei Zhu Ying He Yijun Liu Natalia Kazantseva Petr Saha Qilin Cheng Chunmei Zhu;Ying He;Yijun Liu;Natalia Kazantseva;Petr Saha;Qilin Cheng

作者机构：Key Laboratory for Ultrafine Materials of Ministry of Education School of Materials Science and Engineering East China University of Science and TechnologyShanghai 200237 China Centre of Polymer Systems Tomas Bata University in Zlinnam. T. G. Masaryka 5555 760 01 Zlin Czechia 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2019年第28卷第8期

页      面：124-131,I0005页

核心收录：

学科分类：07[理学] 0702[理学-物理学] 

基　　金：supported by the National Key R&D Program of China(2016YFE0131200) the National Natural Science Foundation of China(51702098) International Cooperation Project of Shanghai Municipal Science and Technology Committee(15520721100,18520744400) Research Program supported by the Ministry of Education,Youth,and Sports of the Czech Republic(LTACH17015) 

主　　题：Metal-oragnic framework Polyaniline Core-shell nanoarrays Supercapacitor Electrochemical properties 

摘      要：Hierarchical ZnO@metal-organic framework @polyaniline(ZnO@MOF@PANI) core-shell nanorod arrays on carbon cloth has been fabricated by combining electrodeposition and hydrothermal method. Well-ordered Zn O nanorods not only act as a scaffold for growth of MOF/PANI shell but also as Zn source for the formation of MOF. The morphology of ZnO@MOF@PANI composite is greatly influenced by the number of PANI electrodeposition cycles. Their structural and electrochemical properties were characterized with different techniques. The results indicate that the Zn O@MOF@PANI with 13 CV cycles of PANI deposition demonstrates the maximum specific capacitance of 340.7 F g-1 at 1.0 A g-1, good rate capability with84.3% capacitance retention from 1.0 to 10 A g-1 and excellent cycling life of 82.5% capacitance retention after 5000 cycles at high current density of 2.0 A g-1. This optimized core-shell nanoarchitecture endows the composite electrode with short ion diffusion pathway, rapid ion/electron transfer and high utilization of active materials, which thus result in excellent electrochemical performance of the ternary composite.