Hydrogen storage behavior of Mg@Mg2Si and Mg@Mg17Al12 alloys with additions of carbon allotropes and talc
作者： J. Cermak , L. Kral
DOI: 10.1016/J.JALLCOM.2018.01.394
关键词: Amorphous carbon 、 Chemical engineering 、 Graphite 、 Hydrogen storage 、 Talc 、 Hydride 、 Carbon black 、 Catalysis 、 Sorption 、 Materials science
摘要: Abstract Mg based hydrogen storage alloys containing catalyzing particles are frequently studied because the catalysis is one of possible ways how to speed-up effectively sorption kinetics. Ball milled Mg@Mg2Si and Mg@Mg17Al12 in present paper. They consist grains, which performance catalyzed by Mg2Si Mg17Al12 particles. Graphite, amorphous carbon (carbon black) magnesium silicate monohydrate (talc) were added facilitate fine ball milling. It was found that addition 0.14 wt% shows best kinetics highest capacity about 6 wt% H2. A weak destabilization MgH2 hydride observed. New technique equilibrium pressure estimation proposed.
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