Experimental results with fuel cell start-up and shut-down. Impact of type of carbon for cathode catalyst support [electronic resource]

• Ngôn ngữ: eng
• Ký hiệu phân loại: 667.6 Paints and painting
• Thông tin xuất bản: Los Alamos, N.M. : Oak Ridge, Tenn. : Los Alamos National Laboratory ; Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2015
• Mô tả vật lý: Size: p. 1065-1074 : , digital, PDF file.
• Bộ sưu tập: Metadata
• ID: 255962
• Chủ đề: 1. 30 direct energy conversion; 2. Energy sciences; 3. Fuel cell

Tóm tắt

 Separate testing protocols for fuel cell startups and shutdowns were developed to distinguish between their effects on reverse currents and CO<
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  evolution. The internal currents and the local potentials were measured with different membrane-electrode assemblies (MEAs): we examined the influence of the type of carbon for cathode catalyst support as well as the mitigating effect of low anode Pt loading. In conclusion, significant differences were observed and the experiments also confirmed previous results that the evolved CO<
 sub>
 2<
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  accounts for less than 25% of the total exchanged charge.