| 摘要 |
A membrane electrode assembly includes a polymer electrolyte membrane sandwiched between an anode catalyst layer and a cathode catalyst layer. The area of the anode catalyst layer is less than the area of the cathode catalyst layer. The larger cathode catalyst layer is believed to increase collection of protons from the anode reaction, reduce the corrosive effect of the highly acidic solvated protons in the polymer electrolyte membrane, and allow for small misalignments of the layers during construction of the assembly.
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