Electrochemical Properties of the Modified Carbon Nanotubes

应用红外吸收光谱、扫描电子显微镜分别对纳米碳管和硝化后的纳米碳管进行表征,将其制备成粉末微电极,并在碱性溶液中测试它对对硝基苯酚的电还原性能.实验表明:经硝化处理后,碳管表面修饰了羰基,其电还原性能明显提高.依据实验结果探讨了硝化后纳米碳管于对硝基苯酚电还原过程中的反应机理.Powder micro-electrodes were prepared from raw carbon nanotubes and carbon nanotubes modified by carboxyl.The electro-reduction properties of both the raw and open-ended carbon nanotubes in p-Nitrophenol solution were investigated.The FTIR spectrum result indicated that the functional groups are successfully fixed on the surface of the carbon nanotubes after nitric acid treatment.The cyclic voltammetry results show that the electrochemical activity of carboxyl-modified carbon nanotubes was improved.The mechanism of electro-(reduction) for the carbon nanotubes after acid treatment was discussed.作者联系地址：绿色化学合成技术国家重点实验室培育基地浙江工业大学纳米科学与技术工程研究中心,绿色化学合成技术国家重点实验室培育基地浙江工业大学纳米科学与技术工程研究中心,绿色化学合成技术国家重点实验室培育基地浙江工业大学纳米科学与技术工程研究中心,绿色化学合成技术国家重点实验室培育基地浙江工业大学纳米科学与技术工程研究中心 浙江杭州310032,浙江杭州310032,浙江杭州310032,浙江杭州310032Author's Address: *,TANG Jun-yan,LI Guo-hua,LOU Ying-wei State Key Laboratory Breeding Base of Green Chem Synth Tech,Zhejiang University of Technology,Hangzhou,Zhejiang 310032,Research Center of Nano ST,Zhejiang University of Technology,Hangzhou 310032,Zhejiang,Chin