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Issue 58, 2016
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Photoelectrochemical study of p-GaP(100)|ZnO|AuNP devices: strategies for enhanced electron transfer and aqueous catalysis

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Abstract

We report a photocathode device consisting of GaP, a metal oxide (Al2O3 or ZnO), a phosphonate-C12-thiol monolayer, and gold nanoparticles (AuNPs). The AuNPs enhance electron transfer: in non-aqueous electrochemistry (EtV2+ in MeCN), p-GaP|Al2O3|O3PC12S|AuNP and …ZnO|…|AuNP rescued the photocurrent (24%, 59% of Jmax-etch). Aqueous experiments (CO2 saturated KCl) using the optimized ZnO-functionalized device exhibited H+ → H2 (FY = 66%) and CO2 → CO (FY = 6%).

Graphical abstract: Photoelectrochemical study of p-GaP(100)|ZnO|AuNP devices: strategies for enhanced electron transfer and aqueous catalysis

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Publication details

The article was received on 24 Jan 2016, accepted on 04 May 2016 and first published on 12 May 2016


Article type: Communication
DOI: 10.1039/C6CC00703A
Citation: Chem. Commun., 2016,52, 9145-9148
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    Photoelectrochemical study of p-GaP(100)|ZnO|AuNP devices: strategies for enhanced electron transfer and aqueous catalysis

    O. M. Williams, J. W. Shi and M. J. Rose, Chem. Commun., 2016, 52, 9145
    DOI: 10.1039/C6CC00703A

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