Direct PEM fuel cell using "organic chemical hydrides" with zero-CO2 emission and low-crossover.
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, PD(max) = 15 mW cm(-2)) and 2-propanol (OCV = 790 mV, PD(max) = 78 mW cm(-2)) as fuels without CO(2) 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.
Kariya
Nobuko
N
Catalyst Research Centre, Hokkaido University, N21 W10 Sapporo, Hokkaido, 001-0021, Japan.
Fukuoka
Atsushi
A
Ichikawa
Masaru
M
D003510:Cyclohexanes; D004736:Energy-Generating Resources; D004787:Environmental Pollution / Q000517:prevention & control; D006838:Hydrocarbons; D006859:Hydrogen; D009930:Organic Chemicals; D010100:Oxygen / Q000032:analysis*; D014867:Water
D003510:Cyclohexanes; D006838:Hydrocarbons; D009930:Organic Chemicals; D014867:Water; D006859:Hydrogen; D010100:Oxygen