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http://dx.doi.org/10.3795/KSME-B.2006.30.12.1196

Fabrication and Performance Evaluation of MEMS Methanol Reformer for Micro Fuel Cells  

Kim, Tae-Gyu (한국과학기술원 항공우주공학과)
Kwon, Se-Jin (한국과학기술원 항공우주공학과)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.30, no.12, 2006 , pp. 1196-1202 More about this Journal
Abstract
A MEMS methanol reformer was fabricated and its performance was evaluated in the present study. Catalytic steam reforming of methanol was selected because the process had been widely applied in macro scale reformers. Conventional Cu/ZnO catalyst that was prepared by co-precipitation method to give the highest coating quality was used. The reactor structure was made by bonding three layers of glass wafers. The internal structure of the wafer was fabricated by the wet-etching process that resulted in a high aspect ratio. The internal surface of the reactor was coated by catalyst and individual wafers were fusion-bonded to form the reactor structure. The internal volume of the microfabricated reactor was $0.3cm^3$ and the reactor produced exhaust gas with hydrogen concentration at 73%. The production rate of hydrogen was 4.16 ml/hr that could generate power of 350 mW in a typical PEM fuel cell.
Keywords
Reformer; Micro Fuel Cell; Catalytic Reactor; Methanol; Hydrogen; MEMS;
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