کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1281630 1497657 2008 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Nano-Cu catalyze hydrogen production from formaldehyde solution at room temperature
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Nano-Cu catalyze hydrogen production from formaldehyde solution at room temperature
چکیده انگلیسی

In this paper, high efficient production of CO-free hydrogen from formaldehyde (HCHO) aqueous solution catalyzed by various nano-metal catalysts was reported. It was found that nano-metal catalyst could catalyze formaldehyde into hydrogen and formic acid under room temperature and atmospheric pressure. Among Pt, Au, Ni, and Cu nano-metal particles, nano-Cu catalyst exhibited the highest activity and the long-term stability. The temperature seems influence the reaction significantly. For example, when the temperature was increased from 0 to 60 °C, the rate of hydrogen production increases from 2.34 to 140 mL min−1 g−1 catalyst over nano-Cu catalyst. Hydrogen was produced via the formic acid intermediate. When NaOH concentration was high, Cannizzaro reaction occurred, which resulted in the retardation of hydrogen generation at high concentration of NaOH and HCHO.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 33, Issue 9, May 2008, Pages 2225–2232
نویسندگان
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