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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 799-800Photoactive Anode of NiO/TiO2 Nanotube p-n...

Photoactive Anode of NiO/TiO₂ Nanotube p-n Junctions and Application in Photoassisted Water Electrolysis

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Abstract:

The photoactive anode was fabricated by hydrothermal method using the ZnO nanorod array as the template. NiO nanoflakes were assembled on the TiO₂ tubular arrays to form p-n junction heterostrucutures on the Ni substrate. The water electrolysis was coupled with photocatalytic decomposition of water by irradiation of UV and UV-visible light on the modified Ni anode. Under UV and UV-visible light irradiation, the hydrogen evolution rates of the photoactive Ni anode modified by NiO/TiO₂ nanotube composites are 2.92 ml/h·cm² and 3.16 ml/h·cm² respectively, increased by 5.4 % and 15 % in comparison with that of the Ni anode modified by TiO₂ nanotube array and showed 152 % and 172 % improvement in comparison with that of sole Ni anode respectively.

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Mechanical and Electrical Technology VII

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Periodical:

Applied Mechanics and Materials (Volumes 799-800)

Pages:

158-165

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https://doi.org/10.4028/www.scientific.net/AMM.799-800.158

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Online since:

October 2015

Authors:

Xiu Li Sun, Ai Ping Chen*, Hong Bo He, Tian Tian He, Chun Zhong Li

Keywords:

Hydrogen, NiO, Photocatalysis, TiO₂, Water Electrolysis

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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