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Visible Light Driven Water Splitting in a Molecular Device with Unprecedentedly High Photocurrent Density
KTH, School of Chemical Science and Engineering (CHE), Chemistry.
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2013 (English)In: Journal of the American Chemical Society, ISSN 0002-7863, E-ISSN 1520-5126, Vol. 135, no 11, 4219-4222 p.Article in journal (Refereed) Published
Abstract [en]

A molecular water oxidation catalyst (2) has been synthesized and immobilized together with a molecular photosensitizer (1) on nanostructured TiO2 particles on FTO conducting glass, forming a photoactive anode (TiO2(1+2)). By using the TiO2(1+2) as working electrode in a three-electrode photoelectrochemical cell (PEC), visible light driven water splitting has been successfully demonstrated in a phosphate buffer solution (pH 6.8), with oxygen and hydrogen bubbles evolved respectively from the working electrode and counter electrode. By applying 0.2 V external bias vs NHE, a high photocurrent density of more than 1.7 has been achieved. This value is higher than any PEC devices with molecular components reported in literature.

Place, publisher, year, edition, pages
2013. Vol. 135, no 11, 4219-4222 p.
Keyword [en]
Electron-Transfer, Oxidation, Photoanode, Catalyst, Complex, Ligand, Cells
National Category
Chemical Sciences
URN: urn:nbn:se:kth:diva-121611DOI: 10.1021/ja400402dISI: 000316774100015ScopusID: 2-s2.0-84875432772OAI: diva2:619912
Knut and Alice Wallenberg Foundation

QC 20130507

Available from: 2013-05-07 Created: 2013-05-03 Last updated: 2013-05-07Bibliographically approved

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