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Homogeneous photochemical water oxidation with metal salophen complexes in neutral media

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Abstract

The development of water oxidation catalysts based on Earth-abundant metals that can function at neutral pH remains a basic chemical challenge. Here, we report that salophen complexes with Ni(II), Cu(II), and Mn(II) can catalyse photochemical water oxidation to molecular oxygen in the presence of [Ru(bpy)3]2+ as a photosensitizer and Na2S2O8 as an oxidant in phosphate buffer of pH 7.0. Experimental results including CV, SEM, EDS, ESI-MS, and DLS measurements on the metal salophen complex-catalysed water oxidation to oxygen suggest that the catalytic activity of the catalysts is molecular in origin.

Graphical abstract: Homogeneous photochemical water oxidation with metal salophen complexes in neutral media

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Publication details

The article was received on 02 Jun 2019, accepted on 30 Sep 2019 and first published on 01 Oct 2019


Article type: Paper
DOI: 10.1039/C9PP00254E
Photochem. Photobiol. Sci., 2019, Advance Article

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    Homogeneous photochemical water oxidation with metal salophen complexes in neutral media

    Md. A. Asraf, C. I. Ezugwu, C. M. Zakaria and F. Verpoort, Photochem. Photobiol. Sci., 2019, Advance Article , DOI: 10.1039/C9PP00254E

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