Direct PEM fuel cell using “organic chemical hydrides” with zero-CO2 emission and low-crossover
Literature Information
Atsushi Fukuoka, Masaru Ichikawa
A series of “organic chemical hydrides” such as cyclohexane, methylcyclohexane, cyclohexene, 2-propanol, and cyclohexanol were applied to the direct PEM fuel cell. High performances of the PEM fuel cell were achieved by using cyclohexane (OCV = 920 mV, PDmax = 15 mW cm−2) and 2-propanol (OCV = 790 mV, PDmax = 78 mW cm−2) as fuels without CO2 emissions. The rates of fuel crossover for cyclohexane, 2-propanol, and methanol were estimated, and the rates of fuel permeation of cyclohexane and 2-propanol were lower than that of methanol. Water electrolysis and electro-reductive hydrogenation of acetone mediated by PEM were carried out and formation of 2-propanol in cathode side was observed. This system is the first example of a “rechargeable” direct fuel cell.
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