[1]叶俊辉,王森林,黎辉常,等.二氧化铅/石墨烯电极的制备及其电化学性能[J].华侨大学学报(自然科学版),2018,39(6):872-878.[doi:10.11830/ISSN.1000-5013.201804038]
　YE Junhui,WANG Senlin,LI Huichang,et al.Preparation and Electrochemical Performance of PbO2/Graphene Electrode[J].Journal of Huaqiao University(Natural Science),2018,39(6):872-878.[doi:10.11830/ISSN.1000-5013.201804038]
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二氧化铅/石墨烯电极的制备及其电化学性能()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第39卷
期数:
2018年第6期
页码:
872-878
栏目:
出版日期:
2018-11-20

文章信息/Info

Title:
Preparation and Electrochemical Performance of PbO2/Graphene Electrode
文章编号:
1000-5013(2018)06-0872-07
作者:
叶俊辉;  王森林;  黎辉常;  梁维俊;  张燕秀
华侨大学 材料科学与工程学院, 福建 厦门 361021
Author(s):
YE Junhui;  WANG Senlin;  LI Huichang;  LIANG Weijun;  ZHANG Yanxiu
College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, China
关键词:
β-PbO2;  石墨烯;  铅酸电池;  复合正极;  电化学性能
Keywords:
β-PbO2;  graphene;  lead-acid cell;  composite positive electrode;  electrochemical performance
分类号:
O646
DOI:
10.11830/ISSN.1000-5013.201804038
文献标志码:
A
摘要:
采用沉淀结合法,制备二氧化铅/石墨烯(β-PbO2/rGO)复合材料.通过X-射线粉末衍射仪(XRD)、场发射电子扫描显微镜(FESEM)、高分辨率透射电子显微镜(HRTEM)和比表面积分析仪研究该复合材料的结构、形貌和比表面积,利用电化学测试技术研究β-PbO2/rGO复合电极和纯β-PbO2电极的电化学性能.结果表明:在复合材料中,纳米β-PbO2较均匀地分散在rGO片表面,β-PbO2/rGO复合材料比纯β-PbO2具有更大的比表面积;复合电极因具有更多的反应活性位点,电化学反应速度较快;在不同的电流密度下,β-PbO2/rGO电极的质量比容量比纯β-PbO2电极高,证明复合电极具有比纯β-PbO2电极更好的电化学性能.
Abstract:
The β-PbO2/rGO composite material was prepared by precipitation combined with two-step hydrothermal method. The structure and morphology of the composite materials were studied by X-ray diffraction(XRD), field emission scanning electron microscopy(FESEM), high resolution transmission electron microscopy(HRTEM)and specific surface analyzer. The electrochemical performances of the β-PbO2/rGO composite electrode and β-PbO2 electrode were studied using electrochemical testing technology. As a result, in composite materials, β-PbO2 nanoparticles distributed evenly on the surface of rGO sheet, and the β-PbO2/rGO composite had a larger specific surface area than the pure β-PbO2. The composite electrode had more active reaction sites, accordingly the electrochemical reaction rate was faster. At different current densities, the mass specific capacity of β-PbO2/rGO electrodes was always higher than that of pure β-PbO2 electrodes, which proves that the composite electrode has better electrochemical performance than the pristine electrode.

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备注/Memo

备注/Memo:
收稿日期: 2018-04-12
通信作者: 王森林(1962-),男,教授,博士,主要从事超级电容器电极材料的研究.E-mail:slwang@hqu.edu.cn.
基金项目: 华侨大学研究生科研创新能力培育计划资助项目(1611302059)
更新日期/Last Update: 2018-11-20