Acta Phys. -Chim. Sin. ›› 2010, Vol. 26 ›› Issue (05): 1214-1218.doi: 10.3866/PKU.WHXB20100335

• ELECTROCHEMISTRY • Previous Articles     Next Articles

Preparation of Carbon Nanotube Chemically Modified Electrode via Growing In situ Method by the Direct Current Electrochemical Deposition Nickel Catalyst

HE Zheng-Wen, JIANG Qi, YANG Rong, QI Peng, ZHAO Fei, YUAN Hua, ZHAO Yong   

  1. Key Laboratory of Advanced Technologies of Materials, Ministry of Education of China, Superconductivity Research and Development Centre, Southwest Jiaotong University, Chengdu 610031, P. R. China; School of Materials Science and Engineering, University of New South Wales, Sydney 2052 NSW, Australia
  • Received:2009-08-27 Revised:2009-12-25 Published:2010-04-29
  • Contact: JIANG Qi E-mail:jiangqi66@163.com

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Abstract:

Grown in situ carbon nanotube chemically modified electrode (GSCNT-CME) was prepared by the in situ growth of carbon nanotube (CNT) onto a pretreated graphite electrode (GE) via catalytic chemical vapor deposition. The pretreated GE was prepared by direct current electrochemical deposition using a nickel catalyst. The deposited nickel and the obtained GSCNT-CME were characterized by optical microscopy, scanning electron microscopy (SEM), and energy dispersive X-ray diffraction(EDX). The electrochemical performance of the obtained GSCNT-CMEs were characterized by cyclic voltammetry using a [Fe(CN)6]3-/[Fe(CN)6]4- solution. Results showed that there was a layer of nickel on the pretreated GE surface after direct current electrochemical deposition and CNT with uniform tube diameters were present on the surface of the GE. The prepared GSCNT-CME has good current response sensitivity and good accuracy. It may be applied in electrochemical testing field.

Key words: Electrochemical deposition, Carbon nanotube chemically modified electrode, Grown in situ