... through the proton exchange membrane (PEM). It is a common practice to use Nafion membranes as PEMs, which have high ion exchange capacity. However, Nafion-based membranes also have high fuel permeability, decreasing fuel utilization, and reducing the potential power density. This article focuses on using...

..., electrodes and catalyst support; thus, reducing the number of components in the fuel cell stack [ 6 , 7 , 10 , 13 ]. In this current study, the results indicated that the alternative material of titanium bipolar plate’s sintered with iridium oxide (IrO 2 ) could be used in PEM fuel cells, which...

... applications. The various stages attained towards the final fabrication of the foil protected lightweight current collector, has also been highlighted in the present work. hot pressing proton exchange membrane fuel cells Bipolar plates GDL PEM Nafion PEMFC Proton exchange membrane fuel...

... electrodeposition nanofibres nanoparticles optimisation platinum platinum alloys power markets proton exchange membrane fuel cells sputter deposition PEM sputter deposition electrodeposition carbon nanofibers chemical vapor deposition One key enabling technology for the transition...

...Michael Pestrak; Yongqiang Li; Scott W. Case; David A. Dillard; Michael W. Ellis; Yeh-Hung Lai; Craig S. Gittleman Long-term durability of the membrane electrode assembly (MEA) in proton exchange membrane (PEM) fuel cells is one of the major technological barriers to the commercialization of fuel...

... ® proton exchange membrane (PEM) fuel-cell stacks from Ballard Power Systems. 24 01 2008 09 08 2008 11 11 2009 11 11 2009 cost reduction DC-DC power convertors fuel cell power plants Lyapunov methods proton exchange membrane fuel cells dc-dc converter fuel cell...

... of the module. 15 06 2007 29 04 2008 11 05 2009 anodes cathodes humidity proton exchange membrane fuel cells temperature distribution fuel cell PEM passive self-breathing membrane flooding humidity impedance PIV Clean and high-efficiency energy supply systems...

... it is large. 30 10 2006 18 10 2007 09 09 2008 channel flow drops laminar flow Navier-Stokes equations proton exchange membrane fuel cells surface tension viscosity droplet deformation VOF method capillary number surface tension PEM interfacial flows immiscible fluid...

... surface diffusion into bulk diffusion, with the latter resembling the Grotthus mechanism. 03 07 2007 10 07 2007 11 04 2008 nonlinear differential equations partial differential equations reaction kinetics sensitivity analysis surface diffusion PEM fuel cell catalyst...

...J. P. Feser; A. K. Prasad; S. G. Advani Particle image velocimetry was used to measure 2D velocity fields in representative regions of interest within flow channels of interdigitated and single-serpentine proton exchange membrane (PEM) fuel cell models. The model dimensions, gas diffusion layer...

...P. Berg; K. Promislow; J. Stumper; B. Wetton We present a transient model for an electrically segmented polymer electrolyte membrane (PEM) fuel cell which is run until extinction from a finite oxygen supply. The experimental cell is divided into 16 electrically isolated pucks which are fed oxygen...