Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 134, Issue 20, Pages 8348-8351Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja301726c
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Funding
- Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of Japan [23000009]
- JST
- Nippon Sheet Glass Foundation for Materials Science and Engineering
- Grants-in-Aid for Scientific Research [23360360, 23000009] Funding Source: KAKEN
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Highly efficient water oxidation utilizing visible photons of up to 600 nm is a crucial step in artifical photosynthesis. Here we present a highly active photocatalyst for visible-light-driven water oxidation, consisting of single-crystalline meso- and macroporous LaTiO2N (LTON) with a band gap of 2.1 eV, and earth-abundasnt cobalt oxide (CoOx) as a cocatalyst. The optimized CoOx/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.
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