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

被引：16

作者：

Fei, SD ^{[1
]}

Chen, JH ^{[1
]}

Yao, SZ ^{[1
]}

Deng, GH ^{[1
]}

Nie, LH ^{[1
]}

Kuang, YF ^{[1
]}

机构：

[1] Hunan Univ, Coll Chem & Chem Engn, State Key Lab Chemo Biosensing & Chemometr, Changsha 410082, Peoples R China

来源：

JOURNAL OF SOLID STATE ELECTROCHEMISTRY | 2005年 / 9卷 / 07期

关键词：

carbon nanotubes; Zn and Zn alloys; electrodeposition; glucose electroreduction;

D O I：

10.1007/s10008-004-0585-y

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Electroreduction of alpha-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 alpha-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) approximate to Zn-Fe/CNT (0.57)> Zn-Ni/CNT (0.43) approximate to 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 alpha-glucose concentration, on the current efficiency of alpha-glucose reduction are also discussed.

引用

页码：498 / 503

页数：6

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