| Modification of Carbon Nanotube Powder Microelectrode and Nitrite Reduction |
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| 作者姓名： | PeiFangLIU JunFuHU |
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| 作者单位： | DpeartmentofChemistry，WuhanUniversity,Wuhan430072 |
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| 摘 要： | The properties of the carbon nanotube powder microelectroes (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)3^2 . As a result, the real surface area and the ability of adsorbing mediator Os(bpy)3^2 of the nanotubes are markedly increased so as to effectively catalyze NO2^- reduction in acidic solution.
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| 关 键 词： | 改良电极 粉末微电极 石墨纳米管 亚硝酸盐 还原反应 |
Modification of Carbon Nanotube Powder Microelectrode and Nitrite Reduction |
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| PeiFangLIU JunFuHU.Modification of Carbon Nanotube Powder Microelectrode and Nitrite Reduction[J].Chinese Chemical Letters,2002,13(1):79-82. |
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| Authors: | Pei Fang LIU Jun Fu HU |
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| Abstract: | 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. |
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| Keywords: | Carbon nanotube powder microelectrode nitrite reduction modified electrode |
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