کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10567370 | 973252 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A study on hydrogen generation from NaBH4 solution using the high-performance Co-B catalyst
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
For hydrogen generation from an aqueous alkaline NaBH4 solution, Co-B catalyst was prepared by the chemical reduction method using NaBH4 as a reduction chemical. To design a hydrogen generator, hydrogen generation rate was measured using the Co-B catalyst as a function of solution temperature, amount of catalyst loading, NaBH4 concentration, and NaOH (a base-stabilizer) concentration. Activation energy for the hydrogen generation reaction was measured to be 64.87Â kJÂ molâ1. Compared to Ru catalysts previously used, the low-cost Co-B catalyst exhibited comparable activity for the hydrogen generation reaction. Using the hydrogen generation system employing the Co-B catalyst, a 2Â W polymer electrolyte membrane fuel cell (PEMFC) stack was operated and successfully powered a cellular phone.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 144, Issue 1, 1 June 2005, Pages 129-134
Journal: Journal of Power Sources - Volume 144, Issue 1, 1 June 2005, Pages 129-134
نویسندگان
S.U. Jeong, R.K. Kim, E.A. Cho, H.-J. Kim, S.-W. Nam, I.-H. Oh, S.-A. Hong, S.H. Kim,