Facet-dependent stability of near-surface oxygen vacancies and excess charge localization at CeO2 surfaces

Autores: Perez-Bailac, P; Lustemberg, PG; Ganduglia-Pirovano, MV

Artículo.
J. Phys.-Condes. Matter. vol: 33. page: 0953-8984.
Fecha: DEC 15. 2021.
Doi: 10.1088/1361-648X/ac238b.

Resumen:
To study the dependence of the relative stability of surface (V ( A )) and subsurface (V-B ) oxygen vacancies with the crystal facet of CeO2, the reduced (100), (110) and (111) surfaces, with two different concentrations of vacancies, were [read more]

2021-12-15T00:00:00+01:00Categories: Publications 2021|Tags: , |

Critical review on the use of photocatalysis and photoelectrocatalysis to create antimicrobial surfaces

Autores: Valenzuela, L; Faraldos, M; Bahamonde, A; Rosal, R

Review.
Curr. Opin. Chem. Eng.. vol: 34. page: 2211-3398.
Fecha: DEC. 2021.
Doi: 10.1016/j.coche.2021.100762.

Resumen:
Infectious diseases are still a major cause of death worldwide. One way of fighting against infectious agents is to develop intrinsically antimicrobial materials to reduce the risk of pathogen spreading through contact with surfaces. Photoactive coatings offer the [read more]

Thermo-photo production of hydrogen using ternary Pt-CeO2-TiO2 catalysts: A spectroscopic and mechanistic study

Autores: Caudillo-Flores, U; Barba-Nieto, I; Munoz-Batista, MJ; Meira, DM; Fernandez-Garcia, M; Kubacka, A

Artículo.
Chem. Eng. J.. vol: 425. page: 1385-8947.
Fecha: DEC 1. 2021.
Doi: 10.1016/j.cej.2021.130641.

Resumen:
The gas phase thermo-photo production of hydrogen from methanol:water mixtures was tested using platinum ceria-titania ternary solids. This contribution focusses on the analysis of the role of ceria and the usefulness of combining heat [read more]

Influence of the synthesis parameters on the proton exchange membrane fuel cells performance of Fe-N-C aerogel catalysts

Autores: Wang, YL; Larsen, MJ; Rojas, S; Sougrati, MT; Jaouen, F; Ferrer, P; Gianolio, D; Berthon-Fabry, S

Artículo.
J. Power Sources. vol: 514. page: 0378-7753.
Fecha: DEC 1. 2021.
Doi: 10.1016/j.jpowsour.2021.230561.

Resumen:
Fe-N-C aerogel catalysts were prepared by sol-gel polycondensation of resorcinol, melamine and formaldehyde precursors in the presence of FeCl3 salt, followed by supercritical drying and thermal treatments. The effect of [read more]

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