Nanocomposite Membranes for High Temperature Proton Exchange Membrane Fuel Cells

75287-Elevating the working temperatures of the fuel cell could drastically reduce or eliminate poisoning and greatly improve electrode kinetics for oxygen reduction. However, the problem with high temperature operation is the loss of proton conductivity due to the dehydration of the Nafion membrane. This project will develop a nanomaterial-based composite membrane that can retain high proton conductivity and mechanical strength at elevated temperature. The synthesis of the composite membrane will achieved by first synthesizing proton conducting nanoparticles, and then introducing this nanomaterial during membrane preparation. In Phase I, the membrane will be characterized, and the feasibility of using these membranes to provide improved power output at a temperature of 130¿C will be demonstrated. Commercial Applications and Other Benefits as described by the awardee: By reducing the requirements on fuel purity and enhanced power output, the technology should accelerate the commercialization of polymer electrolyte fuel cells for both transportation and stationary applications.