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Single carbon fiber decorated with RuO 2 nanorods as a highly electrocatalytic sensing element

Title
Single carbon fiber decorated with RuO 2 nanorods as a highly electrocatalytic sensing element
Authors
Kang M.Lee Y.Jung H.Shim J.H.Lee N.-S.Baik J.M.Lee S.C.Lee C.Kim M.H.
Ewha Authors
이종목이영미김명화
SCOPUS Author ID
이종목scopus; 이영미scopus; 김명화scopus
Issue Date
2012
Journal Title
Analytical Chemistry
ISSN
0003-2700JCR Link
Citation
vol. 84, no. 21, pp. 9485 - 9491
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
We demonstrate highly efficient electocatalytic activities of single crystalline RuO 2 nanorods grown on carbon fiber (CF), i.e., RuO 2 nanorod-CF hybrid microelectrode, prepared by a simple thermal annealing process from the Ru(OH) 3 precursor at 300 °C. The general electrochemical activity of a RuO 2 nanorod-CF microelectrode represents faster electron transfer for the [Fe(CN) 6] 3-/4- couple than that of the bare CF microelectrode which are confirmed from the cyclic voltammetry (CV) measurement. Also, the amperometric response for the H 2O 2 oxidation is remarkably facilitated at the RuO 2 nanorod-CF microelectrode by not only the enlarged surface area but the high electrocatalytic activity of the RuO 2 nanorod material itself. Furthermore, a single microelectrode of RuO 2 nanorod-CF exhibits the superior tolerance to Cl - ion poisoning unlike Pt-based electrocatalysts, indicating the promising sensor candidate in physiological conditions. © 2012 American Chemical Society.
DOI
10.1021/ac302334t
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자연과학대학 > 화학·나노과학전공 > Journal papers
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