粉末冶金技术2024,Vol.42Issue(4) :388-395,402.DOI:10.19591/j.cnki.cn11-1974/tf.2022070004

一步水热法制备MoO3纳米带/还原氧化石墨烯及其电化学性能

Synthesis of MoO3 nanobelts/reduced graphene oxide by one-step hydrothermal method and the corresponding electrochemical properties

吕星 罗成 梁桂杰
粉末冶金技术2024,Vol.42Issue(4) :388-395,402.DOI:10.19591/j.cnki.cn11-1974/tf.2022070004

一步水热法制备MoO3纳米带/还原氧化石墨烯及其电化学性能

Synthesis of MoO3 nanobelts/reduced graphene oxide by one-step hydrothermal method and the corresponding electrochemical properties

吕星 1罗成 2梁桂杰3
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作者信息

  • 1. 湖北文理学院理工学院,襄阳 441053
  • 2. 湖北汽车工业学院材料科学与工程学院,十堰 442002
  • 3. 湖北文理学院低维光电材料与器件湖北省重点实验室,襄阳 441053
  • 折叠

摘要

为了提高超级电容器电极材料三氧化钼(MoO3)的储能性能,通过一步水热法合成了 MoO3纳米带/还原氧化石墨烯(reduced graphene oxide,RGO)复合材料,研究了水热法对复合材料的组织结构及电化学性能的影响.利用X射线衍射分析、扫描电子显微形貌观察、傅里叶变换红外光谱分析、循环伏安曲线、恒流充放电曲线等方法对材料的物相、形貌及电化学性能进行了表征.结果显示,通过一步水热法成功制得MoO3纳米带/RGO复合材料,复合前MoO3比电容为228 F·g-1,复合后比电容提高了 17.5%.复合材料中MoO3纳米带被还原氧化石墨烯包裹或者附着在还原氧化石墨烯表面,增强了材料的导电性并使其结构更稳定,从而提升了电化学性能.

Abstract

To improve the energy storage performance of MoO3 as the supercapacitor electrode materials,the MoO3 nanoribbon/reduced graphene oxide(RGO)composites were synthesized by one-step hydrothermal method.The phase structure,microstructure,and electrochemical properties of the composites were characterized by X-ray diffraction analysis,scanning electron microscopy,Fourier transform infrared spectroscopy,cyclic voltammetry curves,and constant current charge discharge curves.The results show that,the MoO3 nanoribbon/RGO composites are successfully fabricated by the one-step hydrothermal method.Encouragingly,the specific capacitance of the composite materials is increased by 17.5%,compared with that of pure MoO3 as 228 F·g-1.Furthermore,the MoO3 nanoribbons are wrapped by RGO or attached to the surface of RGO in the composites,enhancing the electrical conductivity and structure stability,and then improving the electrochemical performance.

关键词

三氧化钼/水热合成/氧化石墨烯/超级电容器/比电容

Key words

molybdenum trioxide/hydrothermal method/graphene oxide/supercapacitor/specific capacitance

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出版年

2024
粉末冶金技术
中国机械工程学会,中国金属学会,中国有色金属学会,北京科技大学

粉末冶金技术

CSTPCD北大核心
影响因子:0.341
ISSN:1001-3784
参考文献量10
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