کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1626050 1516443 2007 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Activation of hydrogen storage materials in the Li–Mg–N–H system: Effect on storage properties
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Activation of hydrogen storage materials in the Li–Mg–N–H system: Effect on storage properties
چکیده انگلیسی

We investigate the thermodynamics, kinetics, and capacity of the hydrogen storage reaction: Li2Mg(NH)2 + 2H2 ⇔ Mg(NH2)2 + 2LiH. Starting with LiNH2 and MgH2, two distinct procedures have been previously proposed for activating samples to induce the reversible storage reaction. We clarify here the impact of these two activation procedures on the resulting capacity for the Li–Mg–N–H reaction. Additionally, we measure the temperature-dependent kinetic absorption data for this hydrogen storage system. Finally, our experiments confirm the previously reported formation enthalpy (ΔH), hydrogen capacity, and pressure–composition–isotherm (PCI) data, and suggest that this system represents a kinetically (but not thermodynamically) limited system for vehicular on-board storage applications.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 430, Issues 1–2, 14 March 2007, Pages 334–338
نویسندگان
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