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Nanomaterials 2016, 6(8), 144; doi:10.3390/nano6080144

Silicon Nanowire Photocathodes for Photoelectrochemical Hydrogen Production

1
Future Industries Institute, University of South Australia, South Australia 5095, Australia
2
MacDiarmid Institute for Advanced Materials and Nanotechnology, Victoria University of Wellington, Wellington 6140, New Zealand
*
Author to whom correspondence should be addressed.
Academic Editors: Hermenegildo García and Lianzhou Wang
Received: 27 June 2016 / Revised: 29 July 2016 / Accepted: 3 August 2016 / Published: 5 August 2016
View Full-Text   |   Download PDF [1585 KB, uploaded 5 August 2016]   |  

Abstract

The performance of silicon for water oxidation and hydrogen production can be improved by exploiting the antireflective properties of nanostructured silicon substrates. In this work, silicon nanowires were fabricated by metal-assisted electroless etching of silicon. An enhanced photocurrent density of −17 mA/cm2 was observed for the silicon nanowires coated with an iron sulphur carbonyl catalyst when compared to bare silicon nanowires (−5 mA/cm2). A substantial amount of 315 µmol/h hydrogen gas was produced at low bias potentials for the silicon nanowires coated with an iron sulphur carbonyl catalyst. View Full-Text
Keywords: silicon nanowire; nanostructure; anti-reflective surface; bioinspired catalyst; hydrogen production silicon nanowire; nanostructure; anti-reflective surface; bioinspired catalyst; hydrogen production
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Chandrasekaran, S.; Nann, T.; Voelcker, N.H. Silicon Nanowire Photocathodes for Photoelectrochemical Hydrogen Production. Nanomaterials 2016, 6, 144.

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