Cobalt Nanoclusters for Visible-Light Water Oxidation

  • Author: Angewandte Chemie International Edition
  • Published Date: 28 July 2016
  • Source / Publisher: Angewandte Chemie International Edition/Wiley-VCH
  • Copyright: Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
thumbnail image: Cobalt Nanoclusters for Visible-Light Water Oxidation

Water oxidation to form molecular oxygen involves a complicated four-electron process and is a crucial step in artificial photosynthesis to produce fuels using solar energy. From the viewpoint of solar energy conversion, a photosystem that is cheap and stable, and functions under a wide range of visible light would be necessary.

Kazuhiko Maeda, Tokyo Institute of Technology, Japan, and colleagues have developed a new powdered photocatalyst consisting of cobalt hydroxide and titanium dioxide. It is well known that titanium dioxide is an active photocatalyst, but only works under UV irradiation. In contrast, this hybrid photocatalyst is capable of harvesting visible light with wavelengths of up to 850 nm to oxidize water into oxygen gas. It consists only of earth-abundant elements.

The researchers predict that the cobalt/titanium-based photocatalyst could be applicable to the water oxidation half-cycle in artificial photosynthetic schemes such as water splitting and the fixation of carbon dioxide.


Article Views: 7282

Sign in Area

Please sign in below

Additional Sign In options

Please note that to comment on an article you must be registered and logged in.
Registration is for free, you may already be registered to receive, e.g., the newsletter. When you register on this website, please ensure you view our terms and conditions. All comments are subject to moderation.

Article Comments - To add a comment please sign in

If you would like to reuse any content, in print or online, from, please contact us first for permission and consult our permission guidance prior to making your request

Follow on Facebook Follow on Twitter Follow on YouTube Follow on LinkedIn Follow on Instagram RSS Sign up for newsletters

Magazine of Chemistry Europe (16 European Chemical Societies) published by Wiley-VCH