文献类型：期刊文献

英文题名：Electrochemical behavior of amino-modified multi-walled carbon nanotubes coordinated with cobalt porphyrin for the oxidation of nitric oxide

作者：Yan, Ya[1];Yao, Pingping[1];Mu, Qin[1];Wang, Lei[1];Mu, Jin[1];Li, Xiangqing[2];Kang, Shi-Zhao[2]

机构：[1]E China Univ Sci & Technol, Sch Chem & Mol Engn, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[2]Shanghai Inst Technol, Dept Chem Engn, Shanghai 200235, Peoples R China

年份：2011

卷号：258

期号：1

起止页码：58

外文期刊名：APPLIED SURFACE SCIENCE

收录：;EI(收录号：20114314447648);WOS:【SCI-EXPANDED(收录号:WOS:000296492500011)】；

基金：This work was financially supported by the National High Technology Research and Development Program of China (no. 2009AA05Z101).

语种：英文

外文关键词：Multi-walled carbon nanotubes; Porphyrin cobalt (II); Axial coordination; Electron transfer; Electrochemistry

摘要：Cobalt (II) tetrakis (4-sulfonatophenyl) porphyrin (CoTPPS) was axially coordinated with amino-modified multi-walled carbon nanotubes (MWCNT) to form a MWCNT-CoTPPS hybrid. The hybrid was drop cast on the glassy carbon electrode (GCE) to obtain MWCNT-CoTPPS/GCE. The structure of the MWCNT-CoTPPS hybrid was characterized by field-emission transmission electron microscope. X-ray photoelectron spectroscopy was also conducted to characterize the MWCNT-CoTPPS hybrid. Cyclic voltammetry, electrochemical impedance spectroscopy and chronoamperometry were used to evaluate the electrocatalytic activity of MWCNT-CoTPPS/GCE for the oxidation of nitric oxide (NO). The effects of potential scan rate, temperature and NaNO2 concentration on the electrochemical oxidation of NO at the MWCNT-CoTPPS/GCE were studied in detail. The obtained MWCNT-CoTPPS/GCE demonstrated a potential application for detecting NO in aqueous solution. (C) 2011 Elsevier B. V. All rights reserved.