Electrocatalytic Activity of a Novel Nanoporous Platinum Electrode Towards Methanol Oxidation

Chem. J. Chinese Universities

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Electrocatalytic Activity of a Novel Nanoporous Platinum Electrode Towards Methanol Oxidation

YI Qing-Feng¹*, CHEN Ai-Cheng², ZHANG Jing-Jing¹, HUANG Wu¹

1. School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China;
2. Department of Chemistry, Lakehead University, Thunder Bay, Ontario, P7B 5E1, Canada

Received:2006-11-21 Revised:1900-01-01 Online:2007-09-10 Published:2007-09-10
Contact: YI Qing-Feng

Abstract

Abstract: A novel titanium-supported nanoporous platinum (nanoPt/Ti) with a network structure was fabricated by using the hydrothermal process. Electrochemical oxidation of methanol on nanoPt/Ti was investigated in alkaline solutions for the first time. It was shown from the voltammograms that the peak current density of methanol oxidation on the nanoPt/Ti electrode increases significantly compared to the polycrystalline Pt. As shown in anodic polarization curves at 1 mV/s, the peak current density on the nanoPt/Ti is over 45 times higher than that on the polycrystalline Pt. Moreover, chronoamperometric measurements at different potentials locating round the peak potential of methanol oxidation exhibit highly stable current densities under the applied experimental conditions.

Key words: Nanoporous platinum electrode, Methanol oxidation, Electrocatalysis, Hydrothermal process

CLC Number:

O646.5

TrendMD:

YI Qing-Feng¹*, CHEN Ai-Cheng², ZHANG Jing-Jing¹, HUANG Wu¹. Electrocatalytic Activity of a Novel Nanoporous Platinum Electrode Towards Methanol Oxidation[J]. Chem. J. Chinese Universities, doi: .

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Electrocatalytic Activity of a Novel Nanoporous Platinum Electrode Towards Methanol Oxidation

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