科学研究

Ni-Al-Pr LDH/rGO复合电极材料的制备及电化学性能研究

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  • 广西科技大学生物与化学工程学院,柳州545006
沈思静(1996-),女,硕士,主要从事新能源材料方面研究,E-mail:1272006779@qq.com。

收稿日期: 2020-07-04

  修回日期: 2021-07-08

  网络出版日期: 2021-12-13

基金资助

国家自然科学基金(21661007);广西研究生教育创新计划项目(YCSW2021312)

Preparation and electrochemical performance of Ni-Al-Pr LDH/rGO composite material

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  • College of Biological and Chemical Engineering,Guangxi University of Science and Technology,Liuzhou 545006

Received date: 2020-07-04

  Revised date: 2021-07-08

  Online published: 2021-12-13

摘要

采用水热合成法制备Pr掺杂NiAl双金属氢氧化物(Ni-Al-Pr LDH)和Ni-Al-Pr LDH/还原氧化石墨烯(Ni-Al-Pr LDH/rGO)电极材料。使用X射线衍射仪、红外光谱和扫描电镜等手段对样品的成分、结构和形貌进行表征,并考察添加rGO对Ni-Al-Pr LDH材料电化学性能的影响。结果表明:加入4% rGO所制复合材料Ni-Al-Pr LDH/rGO,在1A/g电流密度下比电容为1101F/g,表现出较高的电化学性能,而且其电化学性能远优异于Ni-Al-Pr LDH电极材料(比电容为439F/g),复合rGO可在一定程度上提高电极材料的电化学性能。

本文引用格式

沈思静, 郭为民, 尹俊, 乐志文, 黄荣洲, 秦利平, 刘新梅 . Ni-Al-Pr LDH/rGO复合电极材料的制备及电化学性能研究[J]. 化工新型材料, 2021 , 49(11) : 146 -151 . DOI: 10.19817/j.cnki.issn 1006-3536.2021.11.031

Abstract

Ni-Al-Pr LDH and Ni-Al-Pr LDH/reduced graphene oxide (rGO) electrode materials were prepared by hydrothermal synthesis method.The composition,structural and morphology of the samples were characterized using X-ray diffraction (XRD),fourier transform infrared spectrum (FT-IR),and scanning electron microscope (SEM).Meanwhile,the effect of rGO adding amount on electrochemical performance of Ni-Al-Pr LDH was investigated.The results shown that the composite materials containing 4% rGO exhibited higher electrochemical performance,with a specific capacitance of 1101F/g at a current density of 1A/g.The electrochemical performance of the composite materials was far superior to those of Ni-Al-Pr LDH with a specific capacitance of 439F/g.This indicated that the combination of rGO could improve the electrochemical performance for electrode materials to a certain extent.

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