Issue 3, 2015
From the journal:

Energy & Environmental Science

Platinum(ii)–porphyrin as a sensitizer for visible-light driven water oxidation in neutral phosphate buffer†

Hung-Cheng Chen,a   Dennis G. H. Hetterscheid,‡a   René M. Williams,a   Jarl Ivar van der Vlugt,a   Joost N. H. Reek*a  and  Albert M. Brouwer*a  

* Corresponding authors

a Van't Hoff Institute for Molecular Sciences, University of Amsterdam, P.O. Box 94157, 1090 GD Amsterdam, The Netherlands
E-mail: A.M.Brouwer@uva.nl

Abstract

A water-soluble Pt(II)–porphyrin with a high potential for one-electron oxidation (∼1.42 V vs. NHE) proves very suitable for visible-light driven water oxidation in neutral phosphate buffer solution in combination with a variety of water oxidation catalysts (WOCs). Two homogeneous WOCs (iridium(N-heterocyclic carbene) and Co4O4–cubane complexes) and two heterogeneous WOCs (IrOx·nH2O and Co3O4 nanoparticles) were investigated, with sodium persulfate (Na2S2O8) as a sacrificial electron acceptor. Under neutral buffer conditions, the Pt(II)–porphyrin shows higher stability than the commonly used photosensitizer [Ru(bpy)3]2+, and therefore represents a good alternative photosensitizer to be used in the evaluation of light driven WOCs.

Graphical abstract: Platinum(ii)–porphyrin as a sensitizer for visible-light driven water oxidation in neutral phosphate buffer

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Article information

DOI
https://doi.org/10.1039/C4EE03302G
Article type
Paper
Submitted
18 Oct 2014
Accepted
02 Jan 2015
First published
02 Jan 2015
This article is Open Access
Creative Commons BY-NC license

Energy Environ. Sci., 2015,8, 975-982

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Platinum(II)–porphyrin as a sensitizer for visible-light driven water oxidation in neutral phosphate buffer

H. Chen, D. G. H. Hetterscheid, R. M. Williams, J. I. van der Vlugt, J. N. H. Reek and A. M. Brouwer, Energy Environ. Sci., 2015, 8, 975 DOI: 10.1039/C4EE03302G

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