Jeske, "Novel sulfonated poly(arylene ether benzimidazole) Cardo proton conducting membranes for PEMFC
," Journal of Membrane Science, vol.
At the same time many models have been simulated to study PEMFC
Large amounts of platinum are still required for PEMFC
electrodes to achieve necessary conversion rates.
Reflecting the disadvantaged position of fuel cells in the FreedomCar and Fuel Partnership, the budget devoted to PEMFCs
have a high power density and a low operating temperature, generally 140[degrees] and 180[degrees] E resulting in less time for the fuel cell to warm up and begin generating electricity.
Several strategies have been developed to produce a viable PEMFC
that can function in spite of residual CO in the feed gas: some of the simplest measures include the operation of the fuel cell under pressure or the mixing of a small amount of air with the hydrogen obtained by reforming.
SOFCs employ a hard, ceramic compound of metal oxides as an electrolyte, rather than the thin, permeable polymer electrolyte sheet in a PEMFC
The Dalian Institute of Chemical Physics and the Chinese Academy of Sciences announced a $12 million program to develop PEMFC
NASDAQ:CESV), Hong Kong, a leading provider of energy saving products in China, has signed a Letter of Intent for a PEMFC
Project with Beijing Century Fuyuan Fuel Cell Ltd.
The direct-methanol fuel cell (DMFC) is similar to the PEMFC
in that it uses a polymer membrane as an electrolyte.
prototypes and niche products do exist, but widespread commercial PEMFC
use in the U.
Tetrafluoroethylene-perfluoro-3,6-dioxa-4-methyl-7-octenesulfonic acid copolymer (Nafion) is recognized as the most used proton exchange membrane in the market, useful for PEMFC