Preparation of stereoscopic snowflake-like CoO material and its supercapacitor applications

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• 作者：ChunHui Wu ; Ji-Hua Zhu ; Na Chen ; JingBing Liu ; Hao Wang
• 关键词：CoO ; Supercapacitor ; Chemical synthesis
• 刊名：Ionics
• 出版年：2015
• 出版时间：August 2015
• 年：2015
• 卷：21
• 期：8
• 页码：2303-2307
• 全文大小：630 KB
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• 作者单位：ChunHui Wu (1)
  Ji-Hua Zhu (2)
  Na Chen (1)
  JingBing Liu (1)
  Hao Wang (1)
  
  1. College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100124, China
  2. School of Civil Engineering, Shenzhen University, Shenzhen, 518060, China
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Electrochemistry
  Materials Science
  Physical Chemistry
  Condensed Matter
  Renewable Energy Sources
  Electrical Power Generation and Transmission
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1862-0760

文摘

A novel stereoscopic snowflake-like CoO material is synthesized via a simple two-step process, including the hydrothermal process for the formation of the stereoscopic snowflake-like Co(OH)F as precursor and thermal conversion process to CoO without altering the original shape of the precursor. The possible formation mechanism of the stereoscopic snowflake-like morphology of CoO was investigated by scanning electron microscopy and X-ray diffraction patterns. The hydrothermal temperature and NH4F were critical to the formation of stereoscopic snowflake-like morphology of CoO. The supercapacitor properties of as-prepared CoO were investigated by the electrochemical measurements on a conventional three-electrode system.