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Immobilization of a Molecular Ruthenium Catalyst on Hematite Nanorod Arrays for Water Oxidation with Stable Photocurrent
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Number of Authors: 8
2015 (English)In: ChemSusChem, ISSN 1864-5631, E-ISSN 1864-564X, Vol. 8, no 19, 3242-3247 p.Article in journal (Refereed) Published
Abstract [en]

Photoelectrochemical (PEC) cells for light-driven water splitting are prepared using hematite nanorod arrays on conductive glass as the photoanode. These devices improve the photocurrent of the hematite-based photoanode for water splitting, owing to fewer surface traps and decreased electron recombination resulting from the one-dimensional structure. By employing a molecular ruthenium co-catalyst, which contains a strong 2,6-pyridine-dicarboxylic acid anchoring group at the hematite photoanode, the photocurrent of the PEC cell is enhanced with high stability for over 10000s in a 1m KOH solution. This approach can pave a route for combining one-dimensional nanomaterials and molecular catalysts to split water with high efficiency and stability.

Place, publisher, year, edition, pages
2015. Vol. 8, no 19, 3242-3247 p.
Keyword [en]
hematite, heterogeneous catalysis, nanorods, ruthenium, water oxidation
National Category
Chemical Sciences
URN: urn:nbn:se:su:diva-122933DOI: 10.1002/cssc.201500730ISI: 000362729800009OAI: diva2:871422
Available from: 2015-11-13 Created: 2015-11-11 Last updated: 2015-11-13Bibliographically approved

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Chen, HongSun, Junliang
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Department of Materials and Environmental Chemistry (MMK)
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