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Study on preparation and electrochemical performance of NiMoO4/g-C3N4
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School of Materials Science and Engineering,Nanchang Hangkong University

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    Abstract:

    Supercapacitors have the characteristics of high specific capacitance, long cycle life and green pollution-free, and their excellent electrochemical performance has attracted much attention. In this paper, NiMoO4/g-C3N4 composite powder was hydrothermally synthesized, and the composite powder was coated on foamed nickel to prepare NiMoO4/g-C3N4 electrode material. The results show that the morphology of NiMoO4/g-C3N4 powder is mainly NiMoO4 nanorods and g-C3N4 clumps, and NiMoO4 nanorods are grown on g-C3N4 nanosheets.The electrochemical performance test results show that adding 30at% g-C3N4 to NiMoO4 can reduce the equivalent series resistance and diffusion impedance of the capacitor system, which is beneficial to the oxidation-reduction reaction. Compared with other electrode materials with g-C3N4 content, NiMoO4/g-C3N4 electrode materials with a g-C3N4 content of 30at% have higher specific capacitance (584.3F/g) and better rate characteristics.

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[Yang Xianjun, Nie Wuyang, Bai Yang, Zhang Jianjun, Liang Bingliang, Chen Weihua, Ai Yunlong. Study on preparation and electrochemical performance of NiMoO4/g-C3N4[J]. Rare Metal Materials and Engineering,2021,50(11):4045~4050.]
DOI:10.12442/j. issn.1002-185X.20200887

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History
  • Received:November 18,2020
  • Revised:January 20,2021
  • Adopted:February 04,2021
  • Online: November 30,2021
  • Published: November 24,2021