Visible Light Driven Water Splitting in a Molecular Device with Unprecedentedly High Photocurrent Density
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
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 rnA.cm(-2) 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.
Electron-Transfer, Oxidation, Photoanode, Catalyst, Complex, Ligand, Cells
IdentifiersURN: urn:nbn:se:kth:diva-121611DOI: 10.1021/ja400402dISI: 000316774100015ScopusID: 2-s2.0-84875432772OAI: oai:DiVA.org:kth-121611DiVA: diva2:619912
FunderKnut and Alice Wallenberg Foundation
QC 201305072013-05-072013-05-032013-05-07Bibliographically approved