Gas diffusion cells

K. T. Jeng, S. E. Lee, G. E. Tsai, and C. H. Wang. Oxygen mass transfer in PEM fuel cell gas diffusion layers. Journal of Power Sources 138 (2004) 41-50. 

Lim, C. Wang, C. Y. Measurement of contact angles of liquid water in PEM fuel cell gas diffusion layer (GDL) by sessile drop and capillary rise methods. Penn State University Electrochemical Engine Center (ECEC) Technical Report no. 2001 03, Perm State University State College, PA, 2001. 

Figure 4.33. Equivalent circuit of a catalyst layer [8]. (Reproduced by permission of the authors and of ECS—The Electrochemical Society, from Lefebvre MC, Martin RB, Pickup PG. Characterization of ionic conductivity within proton exchange membrane fuel cell gas diffusion electrodes by impedance spectroscopy.)...

C. Boyer, S. Gamhurzev, O. Velev, S. Srinivasan, and A.J. Appleby. Measurements of proton conductivity in the active layer of PEM fuel cell gas diffusion electrodes. Electrochimica Acta 43, 3703-3709 1998. 

In polymer electrolyte membrane fuel cells, like in many other kinds of fuel cells, gas-diffusion electrodes are used. They consist of a porous, hydrophobic gas-diffusion layer (GDL) and of a catalytically active layer. The diffusion layers (often called backing layers) usually consist of a mixture of carbon black and about 35% by mass of polytetrafluoroethylene (PTFE) applied to a conducting base (most often a thin graphitized cloth). The GDLs yield a uniform supply of reactant gas... 

Kramer D et al (2008) Electrochemical diffusimetry of fuel cell gas diffusion layers. J Electroanal Chem 612 63-77... 

Carter RN, GreszlerTA, Baker DR (2009) Technique for measuring gas transport resistance in application-scale aged fuel cell gas diffusion media. ECS Trans 25 225-231... 

Kleemann J, Finsterwalder F, Tillmetz W (2009) Characterisation of mechanical behaviour and coupled electrical properties of polymer electrolyte membrane fuel cell gas diffusion layers. J Power Sources 190 92-102... 

FIGURE 5.4 Calculated electrical conductivity as a function of applied compressive load. The values were calculated based on the data reported by Kleemann et al. (2009). (Reprinted from the Journal of Power Sources, 190, Kleemann, J., Finsterwalder, F., and Tillmetz, W. Characterisation of mechanical behaviour and coupled electrical properties of polymer electrolyte membrane fuel cell gas diffusion layers. Selected Papers presented at the 11th ULM Electrochemical Days, 92-102, Copyright (2009), with permission from Elsevier.)... 

D. P. Das, Liquid water-droplet adhesion-force measurements on fresh and aged fuel-cell gas-diffusion layers,/. Electrochem. Soc., 159, B489-B496 (2012). 

Sadeghi, E., Djilali, N., and Bahrami, M. 2008. Analytic determination of the effective thermal conductivity of PEM fuel cell gas diffusion layers. 1 200-208. 

A patent apphcation describing pyrolysis of poly(phenylene ether) (PPE) leading to the formation of highly electrically conductive and permeable gaseous carbons, which could be used as base materials for catalysts and for the preparation of the fuel cell gas diffusion electrodes, was submitted in 2003 by Cabasso et al. [ 111 ]. This was achieved by oxidization of PPE in an oxygen-containing atmosphere, at a temperature close to its Tg, followed by its carbonization in an inert atmosphere at high temperatures [111]. 

S. Litster, D. Sinton, and N. DjUah, Ex situ Visualization Liquid Water Transport in PEM Fuel Cell Gas Diffusion Layers, /. Power Sources, Vol. 154, pp. 95-105, 2006. 

Properties of Typical Fuel Cell Gas Diffusion Layers... 

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