期刊
POLYMERS
卷 4, 期 4, 页码 1627-1644出版社
MDPI AG
DOI: 10.3390/polym4041627
关键词
proton exchange membrane fuel cell; direct methanol fuel cell; proton conductivity; acid-base interaction; blend membrane
资金
- Office of Naval Research MURI [N00014-07-1-0758]
- Welch Foundation [F-1254]
Fuel cells hold great promise for wide applications in portable, residential, and large-scale power supplies. For low temperature fuel cells, such as the proton exchange membrane fuel cells (PEMFCs) and direct methanol fuel cells (DMFCs), proton-exchange membranes (PEMs) are a key component determining the fuel cells performance. PEMs with high proton conductivity under anhydrous conditions can allow PEMFCs to be operated above 100 degrees C, enabling use of hydrogen fuels with high-CO contents and improving the electrocatalytic activity. PEMs with high proton conductivity and low methanol crossover are critical for lowering catalyst loadings at the cathode and improving the performance and long-term stability of DMFCs. This review provides a summary of a number of novel acid-base blend membranes consisting of an acidic polymer and a basic compound containing N-heterocycle groups, which are promising for PEMFCs and DMFCs.
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