کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9803297 | 1516464 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Investigations on hydrogen storage behavior of CNT doped NaAlH4
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this paper, we have carried out investigations on admixing carbon nanotubes (CNT) to increase the desorption rate of hydrogen in NaAlH4. So far only transition metal Ti has been attempted as the suitable dopant for making NaAlH4 (purified version) a viable hydrogen storage material by increasing the hydrogen desorption rate. Out of the various materials corresponding to NaAlH4-x mol% CNT (x = 2, 4, 6, 8 and 12), we have found that the material with x = 8 mol% is the optimum material. It shows highest desorption rate leading to 3.3 wt.% of H2 at â¼160 °C within 2 h for the first dissociation reaction. The CNT admixed NaAlH4 has also been found to exhibit good rehydrogenation characteristics (reversibility on hydrogenation up to â¼4.2 wt.%). A feasible mechanism for the improvement of hydrogen desorption characteristics has been put forward.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 403, Issues 1â2, 10 November 2005, Pages 312-317
Journal: Journal of Alloys and Compounds - Volume 403, Issues 1â2, 10 November 2005, Pages 312-317
نویسندگان
D. Pukazhselvan, Bipin Kumar Gupta, Anchal Srivastava, O.N. Srivastava,