高等学校化学学报 ›› 2018, Vol. 39 ›› Issue (10): 2280-2288.doi: 10.7503/cjcu20180111

• 物理化学 • 上一篇    下一篇

碳布功能化处理及纳米二氧化锰的电化学沉积

冯东阳, 郭迪(), 刘晓霞()   

  1. 东北大学理学院化学系, 沈阳 110819
  • 收稿日期:2018-02-07 出版日期:2018-09-29 发布日期:2018-09-26
  • 作者简介:

    联系人简介: 郭 迪, 女, 博士, 讲师, 主要从事电化学储能研究. E-mail: guodi@mail.neu.edu.cn;刘晓霞, 女, 博士, 教授, 主要从事电化学储能研究. E-mail: xxliu@mail.neu.edu.cn

  • 基金资助:
    国家自然科学基金(批准号: 51604067, 21673035)资助.

Functionalization of Carbon Electrode and Subsequent Electrochemical Deposition of Nanostructured Manganese Oxide

FENG Dongyang, GUO Di*(), LIU Xiaoxia*()   

  1. Department of Chemistry, College of Science, Northeastern University, Shenyang 110819, China
  • Received:2018-02-07 Online:2018-09-29 Published:2018-09-26
  • Contact: GUO Di,LIU Xiaoxia E-mail:guodi@mail.neu.edu.cn;xxliu@mail.neu.edu.cn
  • Supported by:
    † Supported by the National Natural Science Foundation of China(Nos. 51604067, 21673035).

摘要:

利用适当电位范围内的循环伏安扫描对碳布(CC)进行功能化处理, 制备部分还原功能化碳布(RFCC). 以RFCC为电极基底, 进行纳米MnO2的电化学沉积. 研究了溶液组成对MnO2电化学沉积的影响, 并在含(NH4)2SO4溶液中制备了N-MnO2/RFCC. 研究结果表明, 适当的功能化处理可显著改善碳布的亲水性, 引入的含氧官能团有助于均匀锚定Mn2+, 诱导纳米MnO2均匀生长. 电化学沉积体系中加入(NH4)2SO4有助于增大MnO2电极材料的比表面积, 提高储能性能.

关键词: 碳布功能化, 二氧化锰, 电化学沉积, 超级电容器

Abstract:

Carbon cloth(CC) was treated by cyclic voltammetry in designed potential range to afford partially reduced functionalized carbon cloth(RFCC). Electrochemical deposition of nanostructured MnO2 was conducted on RFCC. The influence of electrodeposition solution on MnO2 deposition was investigated and N-MnO2/RFCC was prepared in the solution containing (NH4)2SO4. The results show that the functionalization of CC is helpful to improve its wettability, while the introduced oxygen containing functional groups can facilitate the uniform distribution of Mn2+ in the deposition solution to promote the uniform growth of MnO2 nanoparticles. The adding of (NH4)2SO4 is helpful to increase the specific surface area of MnO2, leading to improved charge storage behaviors.

Key words: Functionalization of carbon cloth, Manganese dioxide, Electrochemical deposition, Supercapacitor

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