期刊
ELECTROCHEMISTRY COMMUNICATIONS
卷 10, 期 5, 页码 766-769出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2008.02.032
关键词
nanocomposite; electrocatalysis; iron porphyrin; nitric oxide; oxygen
Water-soluble iron(III) meso-tetrakis(N-methylpyridinum-4-yl)porphyrin (FeTMPyP) was successfully immobilized on single-walled carbon nanotubes (SWNTs) via 1-pyrenebutyric acid (PBA). The formed SWNTs/PBA/FeTMPyP film showed an enhanced electrocatalytic peak at -0.70V and -0.17V towards reduction of nitric oxide and oxygen, respectively. SWNTs accelerated the electron transfer between FeTMPyP and electrode, and increased the amount of FeTMPyP adsorbed. FeTMPyP acted as a catalyst to decrease the reduction potential, exhibiting a synergy in electrocatalysis. The excellent electrocatalytic behaviors made SWNTs/porphyrin nanocomposite have a promising potential in fabricating new type of biosensors. (C) 2008 Elsevier B.V. All rights reserved.
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