Реферат: Methanol crossover is a critical effect, which reduces the efficiency of the DMFC due to undesirable methanol oxidation at the cathode side of fuel cell. This phenomenon is a result of high methanol permeability of Nafion membranes widely used as electrolyte. Recently, aromatic hydrocarbon-based polymer membranes have been suggested as alternative membranes for DMFC due to their low methanol permeability. In this work several commercial hydrocarbon membranes (Fumatech (R)) along with Nafion (R) membranes of various thicknesses, were characterized for their sorption (water and methanol uptake) and transport (proton conductivity, methanol permeability) properties in the 0-10 M methanol concentration interval. As compared to the Nafion (R), their methanol permeabilities were found to be considerably (10-20 times) lower, than the proton conductivities (only 3-5 times). The effect of the different MEA preparation techniques and the operation conditions on the performance of MEAs in DMFC was studied. An attempt was made to correlate the transport properties of membranes with their performance in DMFC.

Библиографическая ссылка: Krivobokov I.M. , Gribov E.N. , Okunev A.G.
Transport Proprties of the Proton Conducting Hydrocarbon Membranes and their Perfomance in DMFC
В сборнике Proceedings of the International Symposium on Innovative Materials for Processes in Energy Systems 2010 : For Fuel Cells, Heat Pumps and Sorption Systems. 2010. – C.136-141. – ISBN 9789810876142. DOI: 10.3850/978-981-08-7614-2_IMPRES028 WOS OpenAlex

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Web of science:	WOS:000429492400020
OpenAlex:	W2079136764

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