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Advanced Energy Materials Laboratory

Research

Research

Development of low-humidity operating polymer electrolyte membrane
등록일
2022-03-21
작성자
사이트매니저
조회수
3

In a fuel cell, the chemical energy is directly converted to electricity; fuel cell can operate at much higher efficiencies than internal combustion engines, extracting more electricity from the same amount of fuel. Fuel cells are extremely attractive energy conversion devices for transportation and portable applications because of their high efficiency and lower emission properties. Among several types of fuel cells, polymer electrolyte membrane fuel cells (PEMFC) have been regarded as promising options for electrical vehicles.

The polymer electrolyte fuel cells operating under low relative humidity and elevated temperature has received an attractive interest to improve electrode kinetics, enhance anode resistance to CO poisoning and simplifying the thermal management of the system. In this research, we created proton transport channels in electrolyte membrane by incorporating porous hygroscopic metal oxide nanotube fillers in order that the polyelectrolyte ionomer can expose into the inner surface of the tubes, was found an effective approach to enhance the proton conductivity of electrolyte membranes. The main advantage of introducing porous hygroscopic tubular fillers in electrolyte membrane not only facilitates proton transport channel in the membrane but also suppress the mass transport overpotential of PEFCs operated under low RH and elevated temperature.

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