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Hydrogen Production by the Reaction of Al and Alkaline Solution for PEMFC Application  

Sim, Woo-Jong (Department of Chemical Engineering, Sunchon National Univ.)
Na, Il-Chal (CNL Energy)
Song, Myung-Hyun (Department of Electrical Engineering, Sunchon National Univ.)
Chung, Hoi-Bum (Department of Mechanical Engineering, Sunchon National Univ.)
Kim, Jeong-Ho (Department of Mechanical Engineering, Chosun Univ.)
Kim, Tae-Hee (Department of Chemical Engineering, Sunchon National Univ.)
Park, Kwon-Pil (Department of Chemical Engineering, Sunchon National Univ.)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.20, no.1, 2009 , pp. 1-8 More about this Journal
Abstract
Hydrogen production by the reaction of aluminum alloys and NaOH solution was studied for an automotive proton exchange membrane fuel cell(PEMFC) application. In our experiment conditions($30{\sim}75^{\circ}C$, NaOH $0.5{\sim}5M$), passivation of aluminum was not occurred. Higher rate of hydrogen production was observed at the reaction with Al alloys that contain impurities. With an increase in reaction temperature, hydrogen production rate by an increase in NaOH concentration increased much. When hydrogen was fed into the anode without filtering, PEMFC cell performance decreased 35% by ionic contamination such as $Na^+$ on the membrane and electrode. Thus, filtering of produced hydrogen is necessary for PEMFC operation.
Keywords
Hydrogen production; Aluminum alloys; Sodium hydroxide; PEMFC;
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