无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ

无机盐工业 ›› 2016, Vol. 48 ›› Issue (2): 75-.

• 论文 • 上一篇    

锌负极材料手性多孔磷酸锌钠的 制备及其电化学性能研究

杨建文1,游海平1,邓型深1,潘筱瑾1,杨贵钧1,张灵志1,2   

  1. 1.桂林理工大学,广西电磁化学功能物质重点实验室,化学与生物工程学院,
    广西桂林 541006;2.中国科学院,广州能源研究所
  • 出版日期:2016-02-10 发布日期:2016-02-18

Preparation and electrochemical performances of chiral porous sodium zinc phosphate as anode material

Yang Jianwen1,You Haiping1,Deng Xingshen1,Pan Xiaojin1,Yang Guijun1,Zhang Lingzhi1,2   

  1. 1.Guangxi Key Laboratory of Electromagnetic Chemical Functional Substance,School of Chemistry and Biological Engineering,
    Guilin University of Technology,Guilin 541006,China;2.Guangzhou Research Institute of Energy,Chinese Academy of Sciences
  • Online:2016-02-10 Published:2016-02-18

摘要: 采用固相法制备手性磷酸锌钠,通过XRD和TEM对所制样品做了表征。结果表明,产物属六方晶系P6122空间群,且具有多孔结构。电化学方法测试表明,手性多孔磷酸锌钠具有良好的电化学反应活性,多次循环后氧化还原峰基本重合,其放电中值电压随着循环次数的增加而提高,经过100次充放电循环其比容量稳定在 170 mA·h/g左右。其良好的电化学稳定性主要得益于磷酸锌钠的多孔结构,提高了电极反应的有效面积,降低了电极极化。

关键词: 手性磷酸锌钠, 多孔结构, 电化学性能, 锌负极材料

Abstract: Chiral sodium zinc phosphate was prepared by solid state method.The X-ray diffraction(XRD) pattern and trans- mission electron microscope(TEM) images revealed that as-prepared sample was porous structure of chiral sodium zinc phosphate which belonged to hexagonal system and P6122 space group.The electrochemical properties showed that synthe- sized sodium zinc phosphate had excellent electrochemical reaction activity,and the oxidation peak was basic anastomotic with the reduction peek after many times′cycles.With the increase of cycling times,the discharge voltage increase gradually and the capacity remain 170 mA·h/g after 100 cycles.The excellent electrochemical stability is mainly attributed to the porous structure of sodium zinc phosphate,which increased the effective area of electrode reaction and reduced the electrode polarization.

Key words: chiral sodium zinc phosphate, porous structure, electrochemical performance, zinc anode material

中图分类号: