Hydrogenated Anatase: Strong Photocatalytic Dihydrogen Evolution without the Use of a Co-Catalyst

Liu N, Schneider C, Freitag D, Venkatesan UM, Marthala V, Hartmann M, Winter B, Spiecker E, Osvet A, Zolnhofer E, Meyer K, Nakajima T, Zhou X, Schmuki P (2014)


Publication Status: Published

Publication Type: Journal article

Publication year: 2014

Journal

Publisher: Wiley-VCH Verlag

Book Volume: 53

Pages Range: 14201-14205

Journal Issue: 51

DOI: 10.1002/anie.201408493

Abstract

The high-pressure hydrogenation of commercially available anatase or anatase/rutile TiO2 powder can create a photocatalyst for H-2 evolution that is highly effective and stable without the need for any additional co-catalyst. This activation effect cannot be observed for rutile; however, for anatase/rutile mixtures, a strong synergistic effect can be found (similar to results commonly observed for noble-metal-decorated TiO2). EPR and PL measurements indicated the intrinsic co-catalytic activation of anatase TiO2 to be due to specific defect centers formed during hydrogenation. These active centers can be observed specifically for high-pressure hydrogenation; other common reduction treatments do not result in this effect.

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APA:

Liu, N., Schneider, C., Freitag, D., Venkatesan, U.M., Marthala, V., Hartmann, M.,... Schmuki, P. (2014). Hydrogenated Anatase: Strong Photocatalytic Dihydrogen Evolution without the Use of a Co-Catalyst. Angewandte Chemie International Edition, 53(51), 14201-14205. https://dx.doi.org/10.1002/anie.201408493

MLA:

Liu, Ning, et al. "Hydrogenated Anatase: Strong Photocatalytic Dihydrogen Evolution without the Use of a Co-Catalyst." Angewandte Chemie International Edition 53.51 (2014): 14201-14205.

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