• Author: ChemistryViews
  • Published: 15 September 2010
  • Copyright: Wiley-VCH Verlag GmbH & Co. KGaA
  • Source / Publisher: Journal of the American Chemical Society/ACS Publications
thumbnail image: Two-For-One

The combination of the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER) has been achieved by nature, but not by chemists. Catalysts suitable for the ORR are not suitable for the OER and vice versa. Currently, the best systems use precious metals; Pt for the ORR and Ru or Ir for the OER.

Yelena Gorlin and Thomas Jaramillo, Stanford University, USA, have developed an nanostructured Mn(III) oxide thin film that acts as a catalyst in both these reactions.

The Mn oxide film was electrodeposited onto a carbon surface. It showed activity on par with the best reported Mn oxide OER catalyst, while its ORR activity matched or surpassed those of the best reported Mn oxide ORR catalysts. In addition, its activity approached those of the precious metal systems.

Bifunctional catalysts of this type could be used in unitized regenerative fuel cells to store and transfer energy as needed.

Article Views: 3390

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