Portal de Periódicos da CAPES

A Pd-impregnated nanocomposite Nafion membrane for use in high-concentration methanol fuel in DMFC

2003; Elsevier BV; Volume: 5; Issue: 7 Linguagem: Inglês

10.1016/s1388-2481(03)00130-9

1873-1902

Young‐Min Kim, Kyung‐Won Park, Jong‐Ho Choi, In-Su Park, Yung‐Eun Sung,

Advancements in Solid Oxide Fuel Cells

Pd nanophases in a Nafion polymer membrane electrolyte were used to enhance DMFC performance by preventing or reducing methanol crossover through the electrolyte. Interestingly, the Pd-impregnated nanocomposite membrane showed a lower permeability for methanol and maintained a proton conductivity comparable to that of a pure Nafion membrane. Because of the modification of the membrane by the Pd nanophases, a high molar concentration of methanol could be applied for use in practical DMFC without any power loss.