Homogeneous photochemical water oxidation with metal salophen complexes in neutral media

Md Ali Asraf, Chizoba I. Ezugwu, C. M. Zakaria, Francis Verpoort

Research output: Contribution to journalArticle

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.

Original languageEnglish
Pages (from-to)2782-2791
Number of pages10
JournalPhotochemical and Photobiological Sciences
Volume18
Issue number11
DOIs
Publication statusPublished - 1 Jan 2019

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Metal complexes
Oxidation
oxidation
Water
metals
water
catalysts
Catalysts
Photosensitizing Agents
Molecular oxygen
oxygen
Oxidants
catalytic activity
Energy dispersive spectroscopy
Catalyst activity
phosphates
Buffers
buffers
Metals
Earth (planet)

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Homogeneous photochemical water oxidation with metal salophen complexes in neutral media. / Asraf, Md Ali; Ezugwu, Chizoba I.; Zakaria, C. M.; Verpoort, Francis.

In: Photochemical and Photobiological Sciences, Vol. 18, No. 11, 01.01.2019, p. 2782-2791.

Research output: Contribution to journalArticle

Asraf, Md Ali ; Ezugwu, Chizoba I. ; Zakaria, C. M. ; Verpoort, Francis. / Homogeneous photochemical water oxidation with metal salophen complexes in neutral media. In: Photochemical and Photobiological Sciences. 2019 ; Vol. 18, No. 11. pp. 2782-2791.
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