2001
DOI: 10.1023/a:1017547112282
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Cited by 159 publications
(75 citation statements)
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“…Beyond the duty of water management, MPL incorporation may have the extra benefit of reducing contact resistance between the GDL and CL, increasing the usable active area of the CL, promoting efficient gas redistribution, and protecting the CL from pinhole formation caused by piercings from the GDL fibers. Amazingly, MPLs have improved PEFC performance consistently in experiments, [183][184][185][186][187][188][189][190][191] with initial empirical optimizations demonstrating increased peak power for composite GDL/MPLs that balance the strengths of high gas permeability and high hydrophobicity. 182 MPL traits that lead to better performance include higher hydrophobicity, General models that compare strictly the difference in PEFC performance between having a MPL and not show that addition of a MPL leads to more uniform membrane hydration and gas and current distribution over the entirety of the PEFC.…”
mentioning
confidence: 85%
“…Beyond the duty of water management, MPL incorporation may have the extra benefit of reducing contact resistance between the GDL and CL, increasing the usable active area of the CL, promoting efficient gas redistribution, and protecting the CL from pinhole formation caused by piercings from the GDL fibers. Amazingly, MPLs have improved PEFC performance consistently in experiments, [183][184][185][186][187][188][189][190][191] with initial empirical optimizations demonstrating increased peak power for composite GDL/MPLs that balance the strengths of high gas permeability and high hydrophobicity. 182 MPL traits that lead to better performance include higher hydrophobicity, General models that compare strictly the difference in PEFC performance between having a MPL and not show that addition of a MPL leads to more uniform membrane hydration and gas and current distribution over the entirety of the PEFC.…”
mentioning
confidence: 85%
“…[13] Passalacqua et al found that the higher pore volume and smaller pore size of acetylene black promotes oxygen diffusion and lowers water accumulation within the MPL. [14] Lin and Chang also reported improvements in acetylene black performance through the addition of nanotubes. [15] Other studies have investigated the effects of carbon loading [16] and binder percentage [17] for further MPL improvements.…”
Section: Introductionmentioning
confidence: 98%
“…Each ESA was smaller than the surface area estimated by TEM, because parts of the catalyst were covered with the peruorosul fonate ionomer, which prevented liquid electrolytes from penetrating into the micropores of the catalyst. 15), 16) In addi tion, a thermal gravimetric analysis of Pt/CSPA showed that there were some organic residues on the catalyst, so that they possibly aected the loss of active sites. Table 2 shows the current densities at 900 mV for ORR on these catalysts measured with the HIRVE and the specic activities normalized by the Pt surface areas.…”
Section: Methodsmentioning
confidence: 99%