Issue 58, 2016

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

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

Supplementary files

Article information

Article type
Communication
Submitted
24 Qun 2016
Accepted
04 Cax 2016
First published
12 Cax 2016

Chem. Commun., 2016,52, 9145-9148

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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