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NiMoO4/g-C3N4的制备及电化学性能研究
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南昌航空大学 材料科学与工程学院

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国家自然科学基金(51861026);江西省教育厅科学(GJJ160688).


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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    摘要:

    超级电容器具有比电容高、循环寿命长和绿色无污染的特点,其优异的电化学性能备受关注。本文水热合成了NiMoO4/g-C3N4复合粉体,并将粉体涂覆在泡沫镍上制备了NiMoO4/g-C3N4电极材料。结果表明,NiMoO4/g-C3N4粉体形貌主要为NiMoO4纳米棒和团状g-C3N4,且NiMoO4纳米棒生长在g-C3N4纳米片上。在NiMoO4中加入30at%的g-C3N4能降低电容体系的等效串联电阻和扩散阻抗,有利于氧化还原反应的进行。相比于其他g-C3N4含量的电极材料,g-C3N4含量为30at%的NiMoO4/g-C3N4电极材料具有更高的比电容(584.3F/g)和更好的倍率特性。

    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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杨先军,聂午阳,白杨,张建军,梁炳亮,陈卫华,艾云龙. NiMoO4/g-C3N4的制备及电化学性能研究[J].稀有金属材料与工程,2021,50(11):4045~4050.[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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历史
  • 收稿日期:2020-11-18
  • 最后修改日期:2021-01-20
  • 录用日期:2021-02-04
  • 在线发布日期: 2021-11-30
  • 出版日期: 2021-11-24