Effects of Ni addition on hydrogen storage properties of Mg(17)Al(12) alloy

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Title:	Effects of Ni addition on hydrogen storage properties of Mg(17)Al(12) alloy
Authors:	Lee,SL;Hsu,CW;Hsu,FK;Chou,CY;Lin,CK;Weng,CW
Contributors:	材料科學與工程研究所
Keywords:	HYDRIDING BEHAVIOR;MG-AL;BULK
Date:	2011
Issue Date:	2012-03-27 16:28:49 (UTC+8)
Publisher:	國立中央大學
Abstract:	The present study reports the effect of Ni addition on the structure and hydrogen storage properties of Mg(17)Al(12) alloy. The Mg(17)Al(12) is synthesized by conventional melting process, and then ball-milled with Ni powder to form Mg(17)Al(12)-X wt.% Ni (X = 0, 10, 20) alloys. XRD results showed that the formation of stable Al(3)Ni and Al(3)Ni(2) phases in the Ni-containing alloys after hydrogenation results in the production of surplus Mg during the desorption process. The catalytic effect of surplus Mg on the Ni-containing alloy is responsible for an enhancement of the hydrogen capacity and absorption rate, compared with ball-milled Mg(17)Al(12) below 300 degrees C. (C) 2010 Published by Elsevier B.V.
Relation:	MATERIALS CHEMISTRY AND PHYSICS
Appears in Collections:	[Institute of Materials Science and Engineering] journal & Dissertation

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