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Evaluation of Cell Components in Direct Formic Acid Fuel Cells  

Jung, Won Suk (Center for Fuel Cell Research, Korea Institute of Science and Technology)
Yoon, Sung Pil (Center for Fuel Cell Research, Korea Institute of Science and Technology)
Han, Jonghee (Center for Fuel Cell Research, Korea Institute of Science and Technology)
Nam, Suk Woo (Center for Fuel Cell Research, Korea Institute of Science and Technology)
Lim, Tae-Hoon (Center for Fuel Cell Research, Korea Institute of Science and Technology)
Oh, In-Hwan (Center for Fuel Cell Research, Korea Institute of Science and Technology)
Hong, Seong-Ahn (Center for Fuel Cell Research, Korea Institute of Science and Technology)
Publication Information
Korean Chemical Engineering Research / v.47, no.3, 2009 , pp. 362-367 More about this Journal
Abstract
Recently, the use of formic acid as a fuel for direct liquid fuel cells has emerged as a promising alternative to methanol. In the work presented herein, we evaluated direct formic acid fuel cells(DFAFCs) with various components under operating conditions, for example, the thickness of the proton exchange membrane, concentration of formic acid, gas diffusion layer, and commercial catalyst. The thickness of the proton exchange membrane influenced performance related to the fuel cross-over. To optimize the cell performance, we investigated on the proper concentration of formic acid and catalyst for the formic acid oxidation. Consequently, membrance-electrode assembly(MEA) consisted of $Nafion^{(R)}$-115 and the Pt-Ru black as a anode catalyst showed the maximum performance. This performance was superior to the DMFCs' one.
Keywords
DFAFC; $Nafion^{(R)}$ thickness; Crossover; Commercial Catalysts; Formic Acid Concentration;
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