... 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...

... received April 16, 2013; published online June 17, 2013. Assoc. Editor: Jacob Brouwer. 14 03 2011 16 04 2013 performance iridium oxide-sintered titanium fuel cells bipolar plates PEM Today, the global warming due to greenhouse emission, such as carbon dioxide, has been...

... plates GDL PEM Nafion PEMFC Proton exchange membrane fuel cells have vast potential application in the transport sector. As the proton exchange membranes (Nafion) have thicknesses in microns the energy densities observed in PEMFC is the highest. Furthermore as the electrolyte (Nafion...

... processes, showed outstanding electrochemical performance. 15 03 2010 21 12 2010 28 03 2011 28 03 2011 PEM electrodes nanomaterial-based, developed by combining physical and chemical deposition processes, showed outstanding electrochemical performance. The results obtained...

...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. Experimental comparison of the PES efficiency with varying stack current level. (top trace) Efficiency when m is varied between 1 through 3 following the optimal criterion outlined in Sec. 2A . When m = 2...

... 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...