کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7730378 1497936 2015 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Transient ion exchange of anion exchange membranes exposed to carbon dioxide
ترجمه فارسی عنوان
تعویض یون مبادله غشای تبادل آنی در معرض دی اکسید کربن است
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
چکیده انگلیسی
A common issue with anion exchange membranes (AEMs) is carbon dioxide contamination which causes a conversion from the hydroxide form to a mixed carbonate/bicarbonate form. In the mixed ionic form the membrane suffers from lower conductivity due to the larger and heavier ions having a lower mobility. The purpose of this study is to develop a theoretical model of the transient ion exchange process and elucidate the nature of the conversion of the AEM from a hydroxide form to a carbonate/bicarbonate form. Experimental data available from the literature providing the anion concentrations versus time are used for comparison. The prevalent mechanisms are discussed and the governing equations are cast in a dimensionless form. Extensions are then made to conductivity predictions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 296, 20 November 2015, Pages 225-236
نویسندگان
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