| Light-induced water oxidation at silicon electrodes functionalized with a cobalt oxygen-evolving catalyst. | |
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MedLine Citation:
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PMID: 21646536 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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Integrating a silicon solar cell with a recently developed cobalt-based water-splitting catalyst (Co-Pi) yields a robust, monolithic, photo-assisted anode for the solar fuels process of water splitting to O(2) at neutral pH. Deposition of the Co-Pi catalyst on the Indium Tin Oxide (ITO)-passivated p-side of a np-Si junction enables the majority of the voltage generated by the solar cell to be utilized for driving the water-splitting reaction. Operation under neutral pH conditions fosters enhanced stability of the anode as compared to operation under alkaline conditions (pH 14) for which long-term stability is much more problematic. This demonstration of a simple, robust construct for photo-assisted water splitting is an important step towards the development of inexpensive direct solar-to-fuel energy conversion technologies. |
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Authors:
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Joep J H Pijpers; Mark T Winkler; Yogesh Surendranath; Tonio Buonassisi; Daniel G Nocera |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S. Date: 2011-06-06 |
Journal Detail:
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Title: Proceedings of the National Academy of Sciences of the United States of America Volume: 108 ISSN: 1091-6490 ISO Abbreviation: Proc. Natl. Acad. Sci. U.S.A. Publication Date: 2011 Jun |
Date Detail:
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Created Date: 2011-06-22 Completed Date: 2011-09-29 Revised Date: 2011-12-21 |
Medline Journal Info:
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Nlm Unique ID: 7505876 Medline TA: Proc Natl Acad Sci U S A Country: United States |
Other Details:
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Languages: eng Pagination: 10056-61 Citation Subset: - |
Affiliation:
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Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139-4307, USA. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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