The Effect of Platinum Deposition on the Water Photo-Reduction at p-Cu2O Semiconductor Electrodes with Visible Light Irradiation

The surface of a p-Cu2O semiconductor photoelectrode was modified by electrodeposition of Pt nanoparticles and analyzed by XRD, SEM, XPS, and EIS (electrochemical impedance spectrometry) methods besides photocurrent measurements. The XRD, SEM, and XPS analyses showed the fabrication of Cu2O film and...

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Bibliographic Details
Published in:Denki kagaku oyobi kōgyō butsuri kagaku 2011, Vol.79(10), pp.821-825
Main Authors: CHATCHAI, Ponchio, NOSAKA, Atsuko Y., NOSAKA, Yoshio
Format: Article
Language:English
Subjects:
Cu2O Photoelectrode
Hydrogen Evolution
Photoelectrocatalysis
Pt Nanoparticles
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Summary:The surface of a p-Cu2O semiconductor photoelectrode was modified by electrodeposition of Pt nanoparticles and analyzed by XRD, SEM, XPS, and EIS (electrochemical impedance spectrometry) methods besides photocurrent measurements. The XRD, SEM, and XPS analyses showed the fabrication of Cu2O film and the deposition of Pt particles. On the electrodeposition of Pt nanoparticles, cathodic photocurrent was enhanced. The EIS analysis suggested that Pt nanoparticles enhance the charge transfer process to the solution.
ISSN:1344-3542
2186-2451
DOI:10.5796/electrochemistry.79.821