Abstract
The photodeposition process under ultraviolet domain for platinum nanoparticles was explored. The concomitant presence of different mechanisms during the photodeposition of Pt nanoparticles onto TiO2 in the presence of water and alcohol is evidenced. According to the process, one can devise various complex mechanisms. The presence of nanoparticulated oxide anatase phase enhances the photodeposition process of metal nanoparticles via the so-called heterogeneous photocatalysis. A description and the effect of mixing of various chemicals in the reactor reveal interesting information, which allows controlling the size of nanoparticles by the photodeposition process. This study also paves the way to decrease the amount of precious metals used in material composition used as catalysts towards hydrogen evolution reaction and oxygen reduction reaction for fuel cell technologies.
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J. Ma thanks “Ministère de l’Enseignement Supérieur et Recherche” for a fellowship and Poitou-Charentes region for financial support.
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This work is dedicated to Prof. W. Vielstich in the occasion of his 90th birthday.
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Ma, J., Habrioux, A. & Alonso-Vante, N. Enhanced HER and ORR behavior on photodeposited Pt nanoparticles onto oxide–carbon composite. J Solid State Electrochem 17, 1913–1921 (2013). https://doi.org/10.1007/s10008-013-2046-y
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DOI: https://doi.org/10.1007/s10008-013-2046-y