Cobalt-modified porous single-crystalline LaTiO2N for highly efficient water oxidation under visible light.

Abstract

Highly efficient water oxidation utilizing visible photons of up to 600 nm is a crucial step in artificial photosynthesis. Here we present a highly active photocatalyst for visible-light-driven water oxidation, consisting of single-crystalline meso- and macroporous LaTiO(2)N (LTON) with a band gap of 2.1 eV, and earth-abundasnt cobalt oxide (CoO(x)) as a cocatalyst. The optimized CoO(x)/LTON had a high quantum efficiency of 27.1 ± 2.6% at 440 nm, which substantially exceeds the values reported for previous particulate photocatalysts with a 600-nm absorption edge.

DOI: 10.1021/ja301726c

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Cite this paper

@article{Zhang2012CobaltmodifiedPS, title={Cobalt-modified porous single-crystalline LaTiO2N for highly efficient water oxidation under visible light.}, author={Fuxiang Zhang and Akira Yamakata and Kazuhiko Maeda and Yosuke Moriya and Tsuyoshi Takata and J. Kubota and Katsuya Teshima and Shuji Oishi and Kazunari Domen}, journal={Journal of the American Chemical Society}, year={2012}, volume={134 20}, pages={8348-51} }