Novel Blend Membranes Based on Acid-Base Interactions for Fuel Cells

Polymers

关键词: proton exchange membrane fuel cell;    direct methanol fuel cell;    proton conductivity;    acid-base interaction;    blend membrane;   

DOI  :  10.3390/polym4041627

来源: DOAJ

【 摘 要 】

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 °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.

【 授权许可】

Unknown