2024-03-28T08:39:56Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1899332019-09-27T10:57:02Zcom_10261_98com_10261_3com_10261_101com_10261_5col_10261_351col_10261_354
00925njm 22002777a 4500
dc
Kubacka, Anna
author
Muñoz-Batista, Mario J.
author
Fernández-García, Marcos
author
Obregón, Sergio
author
Colón, Gerardo
author
2015-02
Copper oxides in contact with anatase correspond to promising materials with high activity in the photoproduction of hydrogen by aqueous reforming of alcohols. By a single pot microemulsion method we obtained a series of Cu–Ti composite systems with controlled copper content in the 0–25 wt.% range. The scanning of such a wide range of composition led to the discovery of two well differentiated maxima in the photo-reaction performance. These maxima present rather high and relatively similar reaction rates and photonic efficiencies but are ascribed to the presence of different copper species. A multitechnique analysis of the materials indicates that the maxima obtained comes from optimizing different steps of the reaction; while the first would be connected with a positive effect on anatase charge handling performance the second seems exclusively related to electron capture by surface copper species.
Applied Catalysis B: Environmental 163: 214-222 (2015)
0926-3373
http://hdl.handle.net/10261/189933
10.1016/j.apcatb.2014.08.005
http://dx.doi.org/10.13039/501100003339
http://dx.doi.org/10.13039/501100003329
H2 production
Titania
Doping
Surface species
Copper
Evolution of H2 photoproduction with Cu content on CuOx-TiO2 composite catalysts prepared by a microemulsion method