Photosynthesis of hydrogen and methane as key components for clean energy system

Tan, Seng Sing, Zou, Linda and Hu, Eric 2007, Photosynthesis of hydrogen and methane as key components for clean energy system, Science and technology of advanced materials, vol. 8, no. 1-2, pp. 89-92.

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Title Photosynthesis of hydrogen and methane as key components for clean energy system
Author(s) Tan, Seng Sing
Zou, Linda
Hu, Eric
Journal name Science and technology of advanced materials
Volume number 8
Issue number 1-2
Start page 89
End page 92
Publisher IOP Publishing
Place of publication Bristol, England
Publication date 2007-01
ISSN 1468-6996
1878-5514
Summary While researchers are trying to solve the world's energy woes, hydrogen is becoming the key component in sustainable energy systems. Hydrogen could be produced through photocatalytic water-splitting technology. It has also been found that hydrogen and methane could be produced through photocatalytic reduction of carbon dioxide with water. In this exploratory study, instead of coating catalysts on a substrate, pellet form of catalyst, which has better adsorption capacity, was used in the photo-reduction of carbon dioxide with water. In the experiment, some water was first absorbed into titanium dioxide pellets. Highly purified carbon dioxide gas was then discharged into a reactor containing these wet pellets, which were then illuminated continuously using UVC lamps. Gaseous samples accumulated in the reactor were extracted at different intervals to analyze the product yields. The results confirmed that methane and hydrogen were photosynthesized using pellet form of TiO2 catalysts. Hydrogen was formed at a rate as high as 0.16 micromoles per hour (μmol h−1). The maximum formation rate of CH4 was achieved at 0.25 μmol h−1 after 24 h of irradiation. CO was also detected.

Language eng
Field of Research 090407 Process Control and Simulation
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2006, NIMS and Elsevier Ltd.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30007121

Document type: Journal Article
Collection: School of Engineering and Information Technology
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