Green catalysts for renewable hydrogen fuel production from water

G. Charles Dismukes, Robin Brimblecombe, Leone Spiccia, Gerhard Swiegers

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Widespread scientific consensus has identified the most challenging barrier to renewable hydrogen fuel generation from water as the oxygen-evolving half reaction. In this talk I will summarize scientific and engineering progress towards realizing practical advances in H2 production from water using a bioinspired abiotic catalyst. Strongly oxidizing inorganic materials, inspired by the photosynthetic oxygen-evolving enzyme, have been synthesized possessing the cubical [Mn4O4]7+ core type. These have been integrated into a photoelectrochemical cell and shown to catalyze the electrooxidation of water. Current generation materials are able to catalyze the sustained photo-assisted oxidation of water for several thousand turnovers. Catalyst integration within a photovoltaic cell (dye-sensitized TiO2) enables photoproduction of hydrogen from water using visible light. Improvements to these inexpensive "green" catalysts are in development as replacement for expensive, non-scalable, noble metals for renewable hydrogen production from water, and in fuel cells for overcoming the cathodic overpotential for reduction of oxygen.

Original languageEnglish
Title of host publicationAmerican Chemical Society - 236th National Meeting and Exposition, Abstracts of Scientific Papers
Publication statusPublished - Dec 1 2008
Event236th National Meeting and Exposition of the American Chemical Society, ACS 2008 - Philadelpia, PA, United States
Duration: Aug 17 2008Aug 21 2008

Publication series

NameACS National Meeting Book of Abstracts
ISSN (Print)0065-7727

Other

Other236th National Meeting and Exposition of the American Chemical Society, ACS 2008
CountryUnited States
CityPhiladelpia, PA
Period8/17/088/21/08

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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    Dismukes, G. C., Brimblecombe, R., Spiccia, L., & Swiegers, G. (2008). Green catalysts for renewable hydrogen fuel production from water. In American Chemical Society - 236th National Meeting and Exposition, Abstracts of Scientific Papers (ACS National Meeting Book of Abstracts).