Citation: Pei Fang LIU, Jun Fu HU. Modification of Carbon Nanotube Powder Microelectrode and Nitrite Reduction[J]. Chinese Chemical Letters, ;2002, 13(1): 79-82. shu

Modification of Carbon Nanotube Powder Microelectrode and Nitrite Reduction

Pei Fang LIU ,
Jun Fu HU

Department of Chemistry, Wuhan University, Wuhan 430072

Received Date: 14 May 2001

Fund Project: The authors are grateful to the National Natural Science Foundation of China for financial support for this work.

The properties of the carbon nanotube powder microelectrodes (denoted CNTPME) are remarkably altered by anodic pretreatment and preadsorption of mediators.It seems that anodic pretreatment leads the long and tangled carbon nanotubes to be partially cut shorter, resulting in more openings as shown by TEM.Besides, the anodic pretreatment may adjust the hydrophobicity of nanotubes to match with that of Os(bpy)₃²⁺.As a result, the real surface area and the ability of adsorbing mediator Os(bpy)₃²⁺ of the nanotubes are markedly increased so as to effectively catalyze NO₂- reduction in acidic solution.
- Carbon nanotube,
- powder microelectrode,
- nitrite reduction,
- modified electrode
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