کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1288832 973275 2011 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Carbonate resilience of flowing electrolyte-based alkaline fuel cells
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Carbonate resilience of flowing electrolyte-based alkaline fuel cells
چکیده انگلیسی

Alkaline fuel cells (AFCs) are promising power sources due to superior kinetics and the ability to use inexpensive non-noble metal catalysts. However, carbonate formation from carbon dioxide in air has long been considered a significant hurdle for liquid electrolyte-based AFC technologies. Carbonate formation consumes hydroxyl anions, which leads to (i) reduced electrode performance if formed salts precipitate from solution and (ii) lowered electrolyte conductivity, which reduces cell performance and operating lifetime. Here, using a flowing electrolyte-based microfluidic fuel cell, we demonstrate that AFC performance can be resilient to a broad range of carbonate concentrations. Furthermore, we investigate the effects of carbonate formation rates on projected AFC operational lifetime. Results from this study will aid in the design of AFC-based power sources in light of the tradeoffs between performance, durability and cost.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 196, Issue 4, 15 February 2011, Pages 1762–1768
نویسندگان
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