نتایج جستجو برای: polymer electrolyte fuel cell
تعداد نتایج: 1840700 فیلتر نتایج به سال:
A dynamic model for the concentration admittance of a polymer electrolyte fuel cell is presented. The takes into account oxygen transport in cathode channel, gas diffusion layer, and catalyst layer. An analytical solution derived. We observe that at air channel outlet not affected by faradaic reactions, it contains information on coefficients cell. measured can be fitted using formula obtained ...
Cost reduction and improved durability are the two major targets for accelerating the commercialization of polymer electrolyte membrane fuel cells (PEFCs). To achieve these goals, the development of a novel method to fabricate platinum (Pt)-based electrocatalysts with a high mass activity, deposited on durable conductive support materials, is necessary. In this study, we describe a facile appro...
The polymer electrolyte membrane (PEM) fuel cell system is considered to be an ideal alternative for the internal combustion engine, especially when used on a city bus. Hybrid buses with fuel cell systems and energy storage systems are now undergoing transit service demonstrations worldwide. A hybrid PEM fuel cell city bus with a hierarchical control system is studied in this paper. Firstly, th...
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