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Influence of Pt particle size and reaction phase on the photocatalytic performances of ultradispersed Pt/TiO2 catalysts for hydrogen evolution

Author
Dessal, C.; Martínez, L.; Maheu, C.; Len, T.; Morfin, F.; Rousset, J.; Puzenat, E.; Afanasiev, P.; Aouine, M.; Soler, L.; Llorca, J.; Piccolo, L.
Type of activity
Journal article
Journal
Journal of catalysis
Date of publication
2019-07-01
Volume
375
First page
155
Last page
163
DOI
10.1016/j.jcat.2019.05.033
Repository
http://hdl.handle.net/2117/166433 Open in new window
URL
https://www.sciencedirect.com/science/article/pii/S0021951719302428 Open in new window
Abstract
Pt/TiO2 photocatalysts were prepared by incipient wetness impregnation followed by oxidative and/or reductive thermal treatments. By varying the TiO2 form (commercial P25 and P90, and homemade shape-controlled), the Pt loading (0.2-1 wt% Pt) and the treatment temperature (200-600°C), it has been possible to tune the Pt cluster size. An increase in the ethanol dehydrogenation rate under ultraviolet irradiation as the Pt cluster average diameter decreases from 17 to 9 Å is suggested by our data....
Citation
Dessal, C. [et al.]. Influence of Pt particle size and reaction phase on the photocatalytic performances of ultradispersed Pt/TiO2 catalysts for hydrogen evolution. "Journal of catalysis", 1 Juliol 2019, vol. 375, p. 155-163.
Keywords
Hydrogen evolution reaction, Metal ultradispersion, Photocatalysis, Pt/TiO2, Size effects
Group of research
CRnE - Barcelona Research Center in Multiscale Science and Engineering
NEMEN - Nanoengineering of Materials Applied to Energy

Participants

  • Dessal, Caroline  (author)
  • Martínez, Lester  (author)
  • Maheu, Clément  (author)
  • Len, Thomas  (author)
  • Morfin, Franck  (author)
  • Rousset, Jean Luc  (author)
  • Puzenat, Eric  (author)
  • Afanasiev, Pavel  (author)
  • Aouine, Mimoun  (author)
  • Soler Turu, Lluis  (author)
  • Llorca Pique, Jordi  (author)
  • Piccolo, Laurent  (author)