Fuel cells are electrochemical devices that convert chemical energy into electrical energy. Among various fuel proton exchange membrane cell (PEMFC) is considered one of the most promising candidates for next generation power sources because its high-power densities, zero-emission, and low operation temperature. In recent years, modeling has received enormous attention interest in understanding...

The performance of an alternative membrane based on aromatic multiblock copolymer was compared to that the conventional perfluorosulfonic acid (PFSA) polymer during fuel cell operation. with exhibited more severe voltage loss than at current densities above 0.6 A/cm2 fully saturated reactants. To rationalize this difference, operando high-resolution neutron imaging used investigate water distri...

Temperature, voltage and fuel flow distribution all contribute considerably to fuel cell performance. Conventional methods cannot accurately determine parameter changes inside a fuel cell. This investigation developed flexible and multi-functional micro sensors on a 40 μm-thick stainless steel foil substrate by using micro-electro-mechanical systems (MEMS) and embedded them in a proton exchange...

Proton exchange membrane fuel cells (PEMFCs) with a dead-ended anode and cathode can obtain high hydrogen and oxygen utilization by a comparatively simple system. Nevertheless, the accumulation of the water in the anode and cathode channels might cause a local fuel starvation degrading the performance and durability of PEMFCs. In this study, a brand new design for a polymer electrolyte membrane...

The rising interest in fuel cell vehicle technology (FCV) has engendered a growing need and realization to develop rational chemical strategies to create highly efficient, durable, and cost-effective fuel cells. Specifically, technical limitations associated with the major constituent components of the basic proton exchange membrane fuel cell (PEMFC), namely the cathode catalyst and the proton ...

in the polymer electrolyte membrane fuel cells (pemfcs), low corrosion resistance and high interfacial contact resistance (icr) are two controversial issues in usage of aisi 316l stainless steel as a metallic bipolar plate. for solving these problems, investigation and development of different coatings and/or surface treatments are inevitable. corrosion behavior and icr of aisi 316l specimens c...