Improvement of the Hydrogen Storage Characteristics of MgH2 with Al Nano-Catalyst Produced by the Method of Electric Explosion of Wires

Improvement of the Hydrogen Storage Characteristics of MgH2 with Al Nano-Catalyst Produced by the Method of Electric Explosion of Wires

Bibliographic Details
Parent link:Materials.— .— Basel: MDPI AG
Vol. 17, iss. 3.— 2024.— Article number 639, 12 p.
Main Author: Kudiyarov V. N. Victor Nikolaevich
Other Authors: Kenzhiyev A. Alan, Mostovshchikov A. V. Andrey Vladimirovich
Summary:Title screen
A new composite with a core–shell structure based on magnesium hydride and finely dispersed aluminum powder with an aluminum oxide shell was mechanically synthesized. We used magnesium chips to produce magnesium hydride and aluminum wire after exploitation to produce nano-sized aluminum powder. The beginning of the hydrogen release from the composite occurred at the temperature of 117 °C. The maximum desorption temperature from the MgH2-EEWAl composite (10 wt.%) was 336 °C, compared to pure magnesium hydride—417 °C. The mass content of hydrogen in the composite was 5.5 wt.%. The positive effect of the aluminum powder produced by the electric explosion of wires method on reducing the activation energy of desorption was demonstrated. The composite’s desorption activation energy was found to be 109 ± 1 kJ/mol, while pure magnesium hydride had an activation energy of 161 ± 2 kJ/mol. The results obtained make it possible to expand the possibility of using magnesium and aluminum waste for hydrogen energy
Текстовый файл
Published: 2024
Subjects:
электронный ресурс
труды учёных ТПУ
magnesium waste
magnesium hydride
aluminum
electric explosion of wires
nanoscale powders
hydrogen
desorption
Online Access:http://earchive.tpu.ru/handle/11683/132497
https://doi.org/10.3390/ma17030639
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=672178

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