Journal of Jianghan University (Natural Science Edition) ›› 2020, Vol. 48 ›› Issue (6): 5-12.doi: 10.16389/j.cnki.cn42-1737/n.2020.06.001

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Preparation of NaV6O15 Nanorods on Carbon Cloth and Their Electrochemical Properties

LIU Wanneng,NI Hang,MAO Zhipeng,TIAN Yu,ZHU Xiaolong* ,ZHENG Guang   

  1. Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education,School of Chemical and Environmental Engineering,Jianghan University,Wuhan 430056,Hubei,China
  • Online:2020-12-28 Published:2020-12-18
  • Contact: 朱小龙
  • Supported by:
    国家自然科学基金资助项目(61941502);湖北省自然科学基金资助项目(2019CFB205);湖北省教育厅科学研究计划指导性项目(B2019242);武汉教育局市属高校产学研项目(CXY201803)

Abstract: NaV6O15 is a kind of nanomaterial with superior performance and has great application prospects in the field of supercapacitors. In order to obtain an electrode system with better performance,NaV6O15 was synthesized on carbon cloth as a precursor using the hydrothermal method in this paper. The carbon cloth was annealed,and the NaV6O15 precursor on the carbon cloth was transformed into crystals of NaV6O15 nanorod with diameters ranging from 30 nm to 100 nm through lattice reconstruction,which firmly grew on each bunch of fiber filaments of the carbon cloth. X-ray diffractometer,scanning electron microscope and electrochemical workstation were used for phase、morphology and electrochemical analysis of the electrode material. The results showed that the specific capacitance was 735. 3 F/g at the current density of 0. 5 A/g,and after 3 000 cycles,its capacitance retention rate was 85%. In addition,the electrode material also had good rate performance,higher energy density and extremely low internal resistance. Its electrochemical performance is greatly improved compared to coated electrodes.

Key words: NaV6O15 nanorods, specific capacitance, cycling performance, carbon cloth

CLC Number: