Immobilization of a Molecular Ruthenium Catalyst on Hematite Nanorod Arrays for Water Oxidation with Stable Photocurrent
2015 (English)In: ChemSusChem, ISSN 1864-5631, E-ISSN 1864-564X, Vol. 8, no 19, 3242-3247 p.Article in journal (Refereed) Published
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.
hematite, heterogeneous catalysis, nanorods, ruthenium, water oxidation
IdentifiersURN: urn:nbn:se:kth:diva-174709DOI: 10.1002/cssc.201500730ISI: 000362729800009ScopusID: 2-s2.0-84943583520OAI: oai:DiVA.org:kth-174709DiVA: diva2:868509
FunderSwedish Research CouncilKnut and Alice Wallenberg FoundationSwedish Energy Agency
QC 201511112015-11-112015-10-072016-01-29Bibliographically approved