کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7709872 | 1497393 | 2016 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The interactions of Li3FeN2 with H2 and NH3
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Li3FeN2 was synthesized by calcinating equivalent Li3N and Fe under N2 atmosphere and 700 °C. The interactions of Li3FeN2 with H2 and NH3 were studied by using XRD, Mössbauer spectroscopy, temperature-programmed reaction and isothermal (de)hydrogenation. Our results show that the hydrogenation of Li3FeN2 gives rise to Fe metal rather than FeN following the reaction of Li3FeN2 + 2.5H2 = 2LiNH2 + LiH + Fe. Whereas heating the mixture of 2LiNH2/LiH/Fe results in a two-step dehydrogenation that partially regenerates Li3FeN2. Furthermore, Li3FeN2 can react easily with ammonia at room temperature, forming LiNH2 and an amorphous FeN-containing compound. At higher temperatures Li3FeN2 outperforms Fe2N in catalyzing ammonia decomposition.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 41, Issue 32, 24 August 2016, Pages 14171-14177
Journal: International Journal of Hydrogen Energy - Volume 41, Issue 32, 24 August 2016, Pages 14171-14177
نویسندگان
Peikun Wang, Jianping Guo, Zhitao Xiong, Guotao Wu, Junhu Wang, Ping Chen,