کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1290722 973335 2008 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Performance of solid alkaline fuel cells employing anion-exchange membranes
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Performance of solid alkaline fuel cells employing anion-exchange membranes
چکیده انگلیسی

For the performances of solid alkaline fuel cells (SAFCs) using anion-exchange membranes (AEMs), anion-exchange membranes were prepared via chloromethylation and amination of polysulfone and membrane-electrode assemblies (MEAs) were fabricated using the AEMs as an electrolyte, the ionomer binder prepared by the AEMs and Pt/C and Ag/C electrocatalysts as an anode and a cathode, respectively. Anion-exchange membranes were aminated by a mixing amine agent of trimethylamine (TMA) as a monoamine and various diamines such as N,N,N′,N′-tetramethylmethanediamine (TMMDA), N,N,N′,N′-tetramethylethylenediamine (TMEDA), N,N,N′,N′-tetramethyl-1,3-propandiamine (TMPDA), N,N,N′,N′-tetramethyl-1,4-butanediamine (TMBDA) and N,N,N′,N′-tetramethyl-1,6-hexanediamine (TMHDA). Amination using various diamines enabled to investigate the effect of the length of alkyl chain of the diamines on membrane properties such as ion conductivity and thermal characteristics. The AEMs aminated by the amination agent of mixing TMA and TMHDA (with longer alkyl chain) showed better hydroxyl ion conductivity and thermal stability than those aminated by a diamine. The H2/air SAFC performance of the MEA with 0.5 mg cm−2 Pt/C at the anode and the cathode, respectively, was comparable to one with 0.5 mg cm−2 Pt/C at the anode and 2.0 mg cm−2 Ag/C at the cathode, i.e., approximately 28–30 mW cm−2 of the peak power density range.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 178, Issue 2, 1 April 2008, Pages 620–626
نویسندگان
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