羧基化多壁碳纳米管粉末微电极对间硝基甲苯的电化学行为  

Electrochemical behavior of m-nitrotoluene on powder microelectrode of carboxyl modified carbon nanotube

作　　者：马淳安[1] 王晓娟[1] 毛信表[1] 李国华[1] 陈松[1] 汤俊艳[1] 

机构地区：[1]浙江工业大学绿色化学合成技术国家重点实验室培育基地,浙江杭州310032

出　　处：《浙江工业大学学报》2007年第1期1-5,共5页Journal of Zhejiang University of Technology

基　　金：国家基础研究重大项目前期研究专项基金(2003CCA01300);国家自然科学基金资助项目(20276069;20376074)

摘　　要：以羧基化的多壁碳纳米管(C-MWNT)为电催化材料制成了粉末微电极(C-MWNT-PME),采用循环伏安等方法研究了C-MWNT-PME对间硝基甲苯的电还原行为.实验结果表明:C-MWNT-PME对间硝基甲苯具有良好的电催化活性;C-MWNT-PME上间硝基甲苯的电还原反应为一受吸附控制的不可逆过程.在实验基础上,进一步分析研究了C-MWNT-PME在间硝基甲苯电还原过程中的稳定性,结果表明,酸性溶液中C-MWNT-PME在间硝基甲苯电还原过程中是稳定的.Powder microelectrode （C-MWNT-PME） was made using multi-walled carbon nanotube functionalized by carboxyl （C-MWNTs） as catalytic materials. Electrochemical reduction behavior of m-nitrotoluene in acid solution on the C-MWNT-PME was investigated by cyclic voltammetery. The results show that the catalytic activity of C-MWNTs for the electroreduction of mnitrotoluene is good; the electrochemical reduction of m-nitrotoluene on C-MWNTs is an irreversible cathodic wave, which is controlled by adsorption. The stability of the C-MWNT-PME during the process of the electroreduction of m-nitrotoluene was investigated, and the results show that it owns good stability during the process of the electroreduction of m-nitrotoluene in acid solution.

关 键 词：多壁碳纳米管 羧基化 粉末微电极 间硝基甲苯 电催化 

分 类 号：O646[理学—物理化学]