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Surface Modification to a-SiC Photocathode Using Ruthenium Nanoparticles

Published online by Cambridge University Press:  07 October 2013

Feng Zhu,
Ilvydas Matulionis,
Nicolas Gaillard,
Yuancheng Chang,
Jian Hu,
Josh Gallon and
Arun Madan
Feng Zhu
Affiliation:
MVSystems, Inc, 500 Corporate Circle, Suite L, Golden, CO, 80401, USA.
Ilvydas Matulionis
Affiliation:
MVSystems, Inc, 500 Corporate Circle, Suite L, Golden, CO, 80401, USA.
Nicolas Gaillard
Affiliation:
Hawaii Natural Energy Institute (HNEI), University of Hawaii at Manoa, Honolulu, HI 96822, USA.
Yuancheng Chang
Affiliation:
Hawaii Natural Energy Institute (HNEI), University of Hawaii at Manoa, Honolulu, HI 96822, USA.
Jian Hu
Affiliation:
MVSystems, Inc, 500 Corporate Circle, Suite L, Golden, CO, 80401, USA.
Josh Gallon
Affiliation:
MVSystems, Inc, 500 Corporate Circle, Suite L, Golden, CO, 80401, USA.
Arun Madan
Affiliation:
MVSystems, Inc, 500 Corporate Circle, Suite L, Golden, CO, 80401, USA.
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Abstract

In this paper we described using ruthenium (Ru) nanoparticles for surface modification on our hybrid PV/a-SiC photocathode for hydrogen production by water splitting under sunlight. Ru nanoparticles with size less than 5nm in diameter made the photocathode showed promising results: in an aqueous electrolyte an anodic shift of photocurrent onset potential around 450 mV and an increase in the photocurrent density up to 1.8mA/cm2 from a negligible value. Initial discussion the influence of Ru nanoparticles is presented.

Keywords

Ruplasma-enhanced CVD (PECVD) (deposition)photochemical

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References

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