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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, Min KyungLee, Yu MinJung, Ha YoungShim, Jun HoLee, Nam SukBaik, Jeong MinLee, Sang C.Lee, Chong MokLee, Young MiKim, Myung Hwa
DGIST Authors
Lee, Sang C.
Issue Date
2012
Citation
Analytical Chemistry, 84(21), 9485-9491
Type
Article
Article Type
Article
Keywords
Amperometric ResponseCarbon FibersChlorineCyclic VoltammetryElectrocatalystsElectrocatalyticElectrocatalytic ActivityElectrochemical ActivitiesElectron TransferMicroelectrodesNanorodsNanorods GrownPhysiological ConditionPlatinumPt-Based ElectrocatalystRuthenium AlloysRuthenium CompoundsSensing ElementsSingle-CrystallineSurface AreaThermal Annealing Process
ISSN
0003-2700
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.
URI
http://hdl.handle.net/20.500.11750/5375
DOI
10.1021/ac302334t
Publisher
American Chemical Society
Related Researcher
Files:
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Collection:
Convergence Research Center for Future Automotive Technology1. Journal Articles


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