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 language | English |
|---|---|
| Title of host publication | ACS National Meeting Book of Abstracts |
| Publication status | Published - 2008 |
| Event | 236th National Meeting and Exposition of the American Chemical Society, ACS 2008 - Philadelpia, PA, United States Duration: Aug 17 2008 → Aug 21 2008 |
Other
| Other | 236th National Meeting and Exposition of the American Chemical Society, ACS 2008 |
|---|---|
| Country | United States |
| City | Philadelpia, PA |
| Period | 8/17/08 → 8/21/08 |
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ASJC Scopus subject areas
- Chemistry(all)
- Chemical Engineering(all)
Cite this
Green catalysts for renewable hydrogen fuel production from water. / Dismukes, G Charles; Brimblecombe, Robin; Spiccia, Leone; Swiegers, Gerhard.
ACS National Meeting Book of Abstracts. 2008.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Green catalysts for renewable hydrogen fuel production from water
AU - Dismukes, G Charles
AU - Brimblecombe, Robin
AU - Spiccia, Leone
AU - Swiegers, Gerhard
PY - 2008
Y1 - 2008
N2 - 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.
AB - 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.
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M3 - Conference contribution
SN - 9780841269941
BT - ACS National Meeting Book of Abstracts
ER -