@article{khadke_mass-transport_2014,
	title = {Mass-{Transport} characteristics of oxygen at pt/anion exchange ionomer interface},
	volume = {118},
	copyright = {All rights reserved},
	issn = {19327455},
	doi = {10.1021/jp5011549},
	abstract = {This work quantifies the mass transport characteristics of O2 at Pt/anion exchange ionomer by determining the solubility and diffusion coefficient of O2 in Tokuyama AS-4 anion exchange ionomer film. To determine these parameters electrochemical methods such as linear sweep voltammetry and chronoamperometry are performed on rotating disk electrode. The diffusion process in AS-4 ionomer film is found to be fickian in nature; i.e. it is shown that the diffusion coefficient is independent of concentration and film thickness by calculating the diffusion coefficient at various film thicknesses and rotation speed of electrode. In comparison to Nafion ionomer, the magnitude of diffusion coefficient in anion exchange ionomer is found to be one order higher and solubility is found to be one order lower. However the overall permeability, defined by product of diffusion coefficient and solubility is similar to that Nafion ionomer film. In addition, durability studies of anion exchange ionomer coated Pt disk shows electrochemical stability of anion ionomer in alkaline media. With these studies it is shown},
	number = {21},
	journal = {Journal of Physical Chemistry C},
	author = {Khadke, Prashant Subhas and Krewer, Ulrike},
	year = {2014},
	pages = {11215--11223},
}

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