无机材料学报 ›› 2011, Vol. 26 ›› Issue (4): 398-402.DOI: 10.3724/SP.J.1077.2011.00398

• 研究论文 • 上一篇    下一篇

NiO 的热分解制备及其电化学电容性质

章罗江, 高 博, 张校刚   

  1. 南京航空航天大学 材料科学与技术学院 , 南京 210016
  • 收稿日期:2010-06-29 修回日期:2010-08-28 出版日期:2011-04-20 网络出版日期:2011-04-22
  • 作者简介:章罗江 (1987 - ), 男 , 硕士研究生 .
  • 基金资助:

    国家重点基础研究发展计划 (2007CB209703); 国家自然科学基金 (20633040, 20873064)

Pyrolysis Preparation of Nickel Oxide and Its Electrochemical Capacitance

ZHANG Luo-Jiang,GAO Bo,ZHANG Xiao-Gang   

  1. College of Material Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
  • Received:2010-06-29 Revised:2010-08-28 Published:2011-04-20 Online:2011-04-22
  • Supported by:

    National Basic Research Programof China (2007CB209703); National Natural Science Foundation of China (20633040, 20873064)

摘要: 以亚氨基二乙酸(IDA)为配位剂与Ni2+配位, 经300℃热处理得到NiO.XRD、FT-IR、SEM以及TG研究表明, 生成的配合物在热处理时首先生成单质, 后随温度升高逐渐转化为纳米颗粒与纳米片结合的氧化物; 循环伏安、恒电流充放电及循环寿命电化学测试表明,所得NiO电极在6mol/LKOH电解液中具有较好的电化学电容特性和循环稳定性, 1A/g电流密度下的单电极比容量可达355.8F/g.

关键词: 配位, 热分解, NiO, 电化学电容器

Abstract: NiO was successfully synthesized by complexing of iminodiacetic acid (IDA) and Ni2+, and then calcined in air at 300℃. XRD, FT-IR, SEM and TG tests were applied to investigate the structure, morphology and the formation mechanism of the as-synthesized NiO. The results showed that the obtained complex firstly turned into elementary substance under pyrolysis and then changed to oxide consisting of nanoparticles and nano-flakes with increase of calcination temperature. Electrochemical properties of the NiO were elucidated by cyclic voltammograms, galvanostatic charge-discharge in 6 mol/L KOH electrolyte. Electrochemical data analysis demonstrated that the as-prepared NiO electrode had a good capacitive behavior and cyclability due to its unique structure and possessed a specific capacitance of 355.8 F/g at a current density of 1 A/g.

Key words: complexing, pyrolysis, NiO, electrochemical capacitor

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