کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1626744 1516444 2007 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Hydrogen sorption properties of ternary intermetallic Mg–(Ir,Rh,Pd)–Si compounds
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Hydrogen sorption properties of ternary intermetallic Mg–(Ir,Rh,Pd)–Si compounds
چکیده انگلیسی

Hydrogen gas phase and electrochemical hydriding/dehydriding behavior of new ternary Mg–(Ir,Rh,Pd)–Si intermetallic compounds with compositions appropriate for hydrogen storage is investigated. The intermetallic compound with the highest magnesium content (Mg15Ir5Si2 with channel-like structure) reveals the highest electrochemical hydrogen capacity, but generally the capacities of all intermetallics studied are low (≤60 mAh/g discharge capacities and ≤0.8 wt.% H-gas phase capacity). Refining the particle size and microstructure does not result in significant H-capacity increase. The present study shows that the low H-capacity and unsatisfactory hydriding kinetics measured are most probably due to the insufficient channel size of the crystal structures.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 429, Issues 1–2, 21 February 2007, Pages 306–310
نویسندگان
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