Effects of Ni addition on hydrogen storage properties of Mg17Al12 alloy

Autor:	Sheng Long Lee, Cheng Yu Chou, Chia Wang Weng, Che Wei Hsu, Fu Kai Hsu, Chih Kuang Lin
Rok vydání:	2011
Předmět:	Materials science Hydrogen Alloy Metallurgy Intermetallic chemistry.chemical_element engineering.material Condensed Matter Physics Catalytic effect Absorption rate Hydrogen storage chemistry Desorption engineering General Materials Science Absorption (chemistry) Nuclear chemistry
Zdroj:	Materials Chemistry and Physics. 126:319-324
ISSN:	0254-0584
DOI:	10.1016/j.matchemphys.2010.11.019
Popis:	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 °C.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b55d44a0b3434b03844403d5d2394aa0 https://doi.org/10.1016/j.matchemphys.2010.11.019 Zobrazit plný text záznamu Full Text from ScienceDirect