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Bio-inspired model of photosystem II: supramolecular assembly of an electron mediator into an SnO2 photoanode co-sensitized by a porphyrin photosensitizer and ruthenium molecular catalyst

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Abstract

A bio-inspired electron transfer mediator was incorporated via a Zr4+ ion linkage into a photoanode assembled from a porphyrin photosensitizer displaying broad spectral coverage in the visible region and a ruthenium water oxidation catalyst. Incorporation of the electron mediator suppressed unwanted charge recombination and facilitated the transfer of charge from aqueous electrolyte to the photoanode, resulting in an increase in the photocurrent. A remarkable enhancement of faradaic efficiency for oxygen evolution upon introduction of the mediator was observed in the photoelectrochemical cell.

Graphical abstract: Bio-inspired model of photosystem II: supramolecular assembly of an electron mediator into an SnO2 photoanode co-sensitized by a porphyrin photosensitizer and ruthenium molecular catalyst

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Publication details

The article was received on 22 Oct 2017, accepted on 27 Dec 2017 and first published on 02 Jan 2018


Article type: Communication
DOI: 10.1039/C7SE00515F
Citation: Sustainable Energy Fuels, 2018, Advance Article
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    Bio-inspired model of photosystem II: supramolecular assembly of an electron mediator into an SnO2 photoanode co-sensitized by a porphyrin photosensitizer and ruthenium molecular catalyst

    Y. Na, S. Miao, L. Zhou, P. Wei and Y. Cao, Sustainable Energy Fuels, 2018, Advance Article , DOI: 10.1039/C7SE00515F

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