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Highly Stable GaN Photocatalyst for Producing H-2 Gas from Water
Journal article   Peer reviewed

Highly Stable GaN Photocatalyst for Producing H-2 Gas from Water

Kazuhiro Ohkawa, Wataru Ohara, Daisuke Uchida and Momoko Deura
JAPANESE JOURNAL OF APPLIED PHYSICS, Vol.52(8), p.8
01/08/2013
DOI: https://doi.org/10.7567/JJAP.52.08JH04

Abstract

Physical Sciences Physics Physics, Applied Science & Technology
Efficient production of H-2 from water without the use of an extra bias or any sacrificial reagents is possible using a GaN photocatalyst with a NiO cocatalyst. The average energy conversion efficiency from light energy to H-2 energy was approximately 1% for 500 h. The total amount of hydrogen was 184 mL/cm(2) of the GaN surface. H-2 production rate was as high as 0.37 mL/(cm(2).h). (C) 2013 The Japan Society of Applied Physics

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