Hydrogen absorption properties of a slurry system composed of a magnesium alloy powder and C6H6

Hydrogen absorption properties of a slurry system composed of a magnesium alloy powder and C6H6

The hydrogen absorption properties of slurries composed of La1.8Ca0.2Mg17−xNix alloy powder suspended in liquid C6H6 were investigated. It is found that the La1.8Ca0.2Mg14Ni3 in benzene liquid has similar hydrogen absorption properties as that of the hydrogen-alloy (gas–solid) reaction and the alloy...

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Veröffentlicht in:Journal of alloys and compounds 2003-08, Vol.356-357, p.409-412
Hauptverfasser: Chen, Changpin, Cai, Guanming, Chen, Lixin, An, Yue, Xu, Guohua, Wang, Qidong
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Benzene cyclohexane conversion
Hydrogen absorption properties
Magnesium alloy
Slurry
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container_end_page 412
container_issue
container_start_page 409
container_title Journal of alloys and compounds
container_volume 356-357
creator Chen, Changpin
Cai, Guanming
Chen, Lixin
An, Yue
Xu, Guohua
Wang, Qidong
description The hydrogen absorption properties of slurries composed of La1.8Ca0.2Mg17−xNix alloy powder suspended in liquid C6H6 were investigated. It is found that the La1.8Ca0.2Mg14Ni3 in benzene liquid has similar hydrogen absorption properties as that of the hydrogen-alloy (gas–solid) reaction and the alloy has a strong catalytic effect on hydrogenation reaction of C6H6. The amount of hydrogen absorbed and the hydriding kinetics are related to the temperature, the solid/liquid weight ratio and the surface catalytic activity of the alloy. When the temperature of the slurry is ∼473 K, it acquires a good hydriding rate. The hydrogen absorption capacity of the slurry system composed of 50 wt.% La1.8Ca0.2Mg14Ni3 alloy and 50 wt.% C6H6 reaches 5.5 wt.% of hydrogen at 483 K and 4.5 MPa in 240 min. Results of XRD, XPS and SEM analysis on the crystal structure, surface structure and configuration of the alloy correlated with its catalytic activity are reported and discussed.
doi_str_mv 10.1016/S0925-8388(03)00225-1
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subjects Benzene cyclohexane conversion
Hydrogen absorption properties
Magnesium alloy
Slurry
title Hydrogen absorption properties of a slurry system composed of a magnesium alloy powder and C6H6
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