Augustyński, J., Alexander, B. D. and Solarska, R. (2011) Metal oxide photoanodes for water splitting. In: Bignozzi, Carlo Alberto, (ed.) Photocatalysis. Topics in Current Chemistry, 303 . Springer-Verlag, Berlin, Germany, pp. 1-38. ISBN 9783642222931 (doi:10.1007/128_2011_135)

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Abstract

Solar hydrogen production through photocatalytically assisted water splitting has attracted a great deal of attention since its first discovery almost 30 years ago. The publication of investigations into the use of TiO 2 photoanodes has continued apace since and a critical review of current trends is reported herein. Recent advances in the understanding of the behaviour of nanoparticulate TiO 2 films is summarized along with a balanced report into the utility and nature of titania films doped with non-metallic elements and ordered, nanostructured films such as those consisting of nanotubes. Both of these are areas that have generated a not insignificant degree of activity. One goal of doping TiO 2 has been to extend the photoresponse of the material to visible light. A similar goal has seen a resurgence in interest in Fe 2 O 3 photoanodes. Herein, the influence of dopants on the photocurrent density observed at Fe 2 O 3 photoanodes and, in this regard, the role of silicon has attracted much attention, and a little debate. Finally, we look beyond the binary oxides. Photoanodes made from new materials such as mixed metal oxides, perovskite structured semiconductors, metal (oxy)nitrides or composite electrodes offer the potential to either tailor the optical band gap or tune the conduction or valence band energetics. Recent work in this area is detailed here.

Item Type:	Book Section
Uncontrolled Keywords:	hydrogen, iron oxide, mixed metal oxides, titanium dioxide, visible-light activation
Subjects:	Q Science > QD Chemistry
Faculty / School / Research Centre / Research Group:	Faculty of Engineering & Science Faculty of Engineering & Science > School of Science (SCI)
Related URLs:	Publisher Organisation
Last Modified:	15 Nov 2021 18:04
URI:	http://gala.gre.ac.uk/id/eprint/7050

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