Electroreduction of -glucose on CNT/graphite electrode modified by Zn and Zn–Fe alloy

详细信息    查看全文

• 作者：Shidong Fei ; Jinhua Chen ; Shouzhuo Yao ; Guohong Deng ; Lihua Nie and Yafei Kuang
• 关键词：Carbon nanotubes ; Zn and Zn alloys ; Electrodeposition ; Glucose electroreduction
• 刊名：Journal of Solid State Electrochemistry
• 出版年：2005
• 出版时间：July 2005
• 年：2005
• 卷：9
• 期：7
• 页码：498-503
• 全文大小：443 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Physical Chemistry
  Analytical Chemistry
  Industrial Chemistry and Chemical Engineering
  Characterization and Evaluation Materials
  Condensed Matter
  Electronic and Computer Engineering
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1433-0768

文摘

Electroreduction of -glucose to form sorbitol on Zn/CNTs and Zn alloy/CNTs electrodes has been investigated in this paper. Carbon nanotubes (CNTs) used in this paper are grown directly on graphite disks by chemical vapor deposition. Zn and Zn alloy are electrodeposited on the activated CNTs/graphite electrode by pulse galvanostatic method. The micrographs of Zn/CNTs and Zn alloy/CNTs electrodes are characterized by scanning electron microscopy. The results show that the current efficiency of -glucose reduction on CNTs electrodes is much better than that on flat Zn electrodes. The order of the current efficiency on different electrodes is as follows: Zn/CNT (0.58) Zn–Fe/CNT (0.57)>Zn–Ni/CNT (0.43) Zn/graphite (0.42)>Zn (0.40). It indicates that CNTs have good potential application in electrosynthesis. Additionally, effects of some operating parameters, such as pH, temperature and -glucose concentration, on the current efficiency of -glucose reduction are also discussed.