Proton conducting polymeric

A typical PEFC, shown schematically in Fig. 1, consists of the anode and cathode compartments, separated by a proton conducting polymeric membrane. The anode and cathode sides each comprises of gas channel, gas diffusion layer (GDL) and catalyst layer (CL). Despite tremendous recent progress in enhancing the overall cell performance, a pivotal performance/durability limitation in PEFCs centers on liquid water transport and resulting flooding in the constituent components.1,2 Liquid water blocks the porous pathways in the CL and GDL thus causing hindered oxygen transport to the... 

The proton-conducting polymeric membrane is the unique element of the PEFC, as is indeed reflected by any of the three names used for this... 

Chemical Structure and Chemical Stability of Proton-conducting Polymeric Membranes... 

DMFC operates with a proton conducting polymeric electrolyte too, giving the reactions as shown in Table 1-3. 

PEM (proton exchange membrane) electrolysis the electrodes are separated by a proton-conducting polymeric solid electrolyte (membrane)... 

In general, the ionic transport in linear or crosslinked swollen polymers containing a low molecular weight polar or ion-chelating additive mainly occurs in the solvent phase [118, 120]. This concept has been applied to develop proton conducting polymeric gel or hydrogel membranes [121-123] which reach conductivity values around 10 S cm at room temperature and are not destroyed or dissolved even at high humidity levels. 

Most conventional electrolysers use a Nafion membrane (Ito et al, 2011). The proton-conducting polymeric film is immersed in distilled water. Under a sufficiently high potential, protons migrate through the membrane and are reduced at the cathode. The general reactions are ... 

Kreuer et al. (1998) have outlined a very interesting approach to obtain proton conducting polymeric... 

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