کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7993593 1516153 2018 27 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Design of Mg-Cu alloys for fast hydrogen production, and its application to PEM fuel cell
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Design of Mg-Cu alloys for fast hydrogen production, and its application to PEM fuel cell
چکیده انگلیسی
Mg-Cu alloys are designed for fast hydrogen generation by precipitating an electrochemically noble phase (Mg2Cu) at the grain boundaries. The noble precipitates accelerate the hydrolysis kinetics of the alloy by synergetic action of galvanic and intergranular corrosion. The Mg-3Cu alloy exhibits a hydrogen generation rate of 5.23 ml min−1 g−1, which is 307 times faster than that of pure Mg (0.017 ml min−1 g−1). Furthermore, the effects of annealing of the alloy on the hydrogen generation rate and the feasibility of the production of power via hydrolysis of Mg-3Cu alloy are also confirmed. The annealing of the alloy reduces the hydrogen generation rate through the decrease of precipitates, and 10 g of Mg-3Cu alloy can produce power of 7.25 W for 37 min by operation of a single cell PEMFC.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 741, 15 April 2018, Pages 590-596
نویسندگان
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