کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7705362 | 1497294 | 2018 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Nanosizing ammonia borane with nickel - An all-solid and all-in-one approach for H2 generation by hydrolysis
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Ammonia borane NH3BH3 (AB) and nickel (Ni) have been considered together as an all-solid and all-in-one material for H2 generation by hydrolysis at 20-50 °C. Our novel approach, denoted Ni/AB, consists of AB nanoparticles within a Ni matrix. Upon contact with water, Ni/AB readily hydrolyzes and liberates H2 with a turnover frequency of 13.8 mol(H2) molNiâ1 minâ1 at 43.3 °C. The apparent activation energy, determined over the temperature range 23.5-50.4 °C, is low, with 19.5 ± 4.1 kJ molâ1. These results imply that such a Ni matrix embedding AB acts as an effective catalyst. Beyond the catalytic performance, this is the first report of the successful utilization of an all-solid and all-in-one approach for the hydrolysis of AB, and the work brings unique perspectives for one-shot catalytic systems.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 43, Issue 31, 2 August 2018, Pages 14498-14506
Journal: International Journal of Hydrogen Energy - Volume 43, Issue 31, 2 August 2018, Pages 14498-14506
نویسندگان
Qiwen Lai, Kondo-Francois Aguey-Zinsou, Umit B. Demirci,