کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5147883 | 1497389 | 2016 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Hydrogen desorption improvement of the LiNH2-LiH-KF composite
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Hydrogen desorption improvement of the LiNH2-LiH-KF composite Hydrogen desorption improvement of the LiNH2-LiH-KF composite](/preview/png/5147883.png)
چکیده انگلیسی
Interestingly, an obvious enhancement of the hydrogen storage property is achieved by introducing KF into the LiNH2-LiH system, while KCl, KBr or KI does not show obvious effect on improving the hydrogen storage properties of the LiNH2-LiH system. In comparison with that of the LiNH2-LiH composite, the hydrogen desorption curve of the LiNH2-LiH-0.05 KF composite becomes sharp and the dehydrogenation onset and peak temperatures are decreased by about 36 °C and 38 °C, respectively. The cyclic capacity and desorption kinetic of the LiNH2-LiH-0.05 KF composite in the tenth cycle are still much better than that of the LiNH2-LiH composite in the second cycle. Cyclic performance can be improved at least 4 times by addition of 5 mol% KF. Detailed structural investigations reveal that during the heat-treatment, the doped potassium fluoride can react with LiH and convert to potassium hydride, which induces the improvement in hydrogen storage properties of the LiNH2-LiH system.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 41, Issue 36, 28 September 2016, Pages 16122-16128
Journal: International Journal of Hydrogen Energy - Volume 41, Issue 36, 28 September 2016, Pages 16122-16128
نویسندگان
Bao-Xia Dong, Jing-Jing Gao, Hui Tian, Yun-Lei Teng, Long-Zheng Wang, Wen-Long Liu,