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International Journal of Photoenergy
Volume 2013 (2013), Article ID 857491, 6 pages
Research Article

Study of the Behavior of Titanium Alloys as the Cathode for Photovoltaic Hydrogen Production

1Metal Industries Research and Development Centre, Kaohsiung, Taiwan
2Department of Applied Materials and Optoelectronic Engineering, National Chi Nan University, Puli, Nantou, Taiwan
3Department of Materials Engineering, Tatung University, Taipei 10451, Taiwan

Received 18 September 2013; Accepted 29 September 2013

Academic Editor: Teen-Hang Meen

Copyright © 2013 Chien-Lung Huang et al. 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.


CP-Ti and Ti-153 were adopted in this study to observe their electrochemical behavior in serving as the cathode for photovoltaic hydrogen production. The designed cyclic hydrogenation-solution heat treating processes were performed to increase the hydrogen uptake for both alloys. The results are as follows. (1) Both arsenic trioxide and thiourea showed hydrogenation promotive effect on CP-Ti, while thiourea was an inhibitor for Ti-153 under the applied conditions. (2) Arsenic trioxide showed hydrogenation promotive effect on both Ti-153 and CP-Ti in this study. (3) Ti-153 demonstrated superiority to CP-Ti when serves as the cathode for photovoltaic hydrogen production. The hydrogen mass payload for Ti-153 is 68 times larger than that for CP-Ti.