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The influence of mechanical milling parameters on hydrogen desorption from Mgh2-Wo3 composites

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Authors
Pantić, Tijana
Milanović, Igor
Lukić, Miodrag
Grbović-Novaković, Jasmina
Kurko, Sandra V.
Biliškov, Nikola
Milošević Govedarović, Sanja S.
Article (Published version)
,
© 2019 Hydrogen Energy Publications LLC
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Abstract
The influence of different milling conditions obtained using two high-energy mills on hydrogen desorption from MgH2-WO3 composites was investigated. The morphology, particle and crystallite size were studied as a function of milling speed, vial's volume, and ball-to-powder ratio. The vial's fill level, the number, and type of milling balls and additive's content kept constant. Changes in morphology and microstructure were correlated to desorption properties of materials. Higher milling speed reduced particle size but, there is no significant crystallite size reduction. On the other hand, additive distribution is similar regardless of the energy input. It has been noticed that different energy input on milling blend, which is the result of combined effects of above-mentioned factors, reflects on desorption temperature but not on the kinetics of desorption. In fact, desorption mechanism changes from 2D to 3D growth with constant nucleation rate, despite obtained changes in microstructure... or chemical composition of the material. © 2019 Hydrogen Energy Publications LLC

Keywords:
MgH2 / WO3 / Composites / Mechanical milling / Desorption properties / Kinetic analysis
Source:
International Journal of Hydrogen Energy, 2020, 45, 14, 7901-7911
Funding / projects:
  • Synthesis, processing and characterization of nanostructured materials for application in the field of energy, mechanical engineering, environmental protection and biomedicine (RS-45012)
  • Environmental Protection and Energy Efficiency Fund of the Republic of Croatia
  • Croatian Science Foundation [PKP-2016-06-4480]

DOI: 10.1016/j.ijhydene.2019.07.167

ISSN: 0360-3199

WoS: 000521110300005

Scopus: 2-s2.0-85070554967
[ Google Scholar ]
5
2
URI
https://vinar.vin.bg.ac.rs/handle/123456789/8568
Collections
  • Radovi istraživača
Institution/Community
Vinča
TY  - JOUR
AU  - Pantić, Tijana
AU  - Milanović, Igor
AU  - Lukić, Miodrag
AU  - Grbović-Novaković, Jasmina
AU  - Kurko, Sandra V.
AU  - Biliškov, Nikola
AU  - Milošević Govedarović, Sanja S.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8568
AB  - The influence of different milling conditions obtained using two high-energy mills on hydrogen desorption from MgH2-WO3 composites was investigated. The morphology, particle and crystallite size were studied as a function of milling speed, vial's volume, and ball-to-powder ratio. The vial's fill level, the number, and type of milling balls and additive's content kept constant. Changes in morphology and microstructure were correlated to desorption properties of materials. Higher milling speed reduced particle size but, there is no significant crystallite size reduction. On the other hand, additive distribution is similar regardless of the energy input. It has been noticed that different energy input on milling blend, which is the result of combined effects of above-mentioned factors, reflects on desorption temperature but not on the kinetics of desorption. In fact, desorption mechanism changes from 2D to 3D growth with constant nucleation rate, despite obtained changes in microstructure or chemical composition of the material. © 2019 Hydrogen Energy Publications LLC
T2  - International Journal of Hydrogen Energy
T1  - The influence of mechanical milling parameters on hydrogen desorption from Mgh2-Wo3 composites
VL  - 45
IS  - 14
SP  - 7901
EP  - 7911
DO  - 10.1016/j.ijhydene.2019.07.167
ER  - 
@article{
author = "Pantić, Tijana and Milanović, Igor and Lukić, Miodrag and Grbović-Novaković, Jasmina and Kurko, Sandra V. and Biliškov, Nikola and Milošević Govedarović, Sanja S.",
year = "2020",
abstract = "The influence of different milling conditions obtained using two high-energy mills on hydrogen desorption from MgH2-WO3 composites was investigated. The morphology, particle and crystallite size were studied as a function of milling speed, vial's volume, and ball-to-powder ratio. The vial's fill level, the number, and type of milling balls and additive's content kept constant. Changes in morphology and microstructure were correlated to desorption properties of materials. Higher milling speed reduced particle size but, there is no significant crystallite size reduction. On the other hand, additive distribution is similar regardless of the energy input. It has been noticed that different energy input on milling blend, which is the result of combined effects of above-mentioned factors, reflects on desorption temperature but not on the kinetics of desorption. In fact, desorption mechanism changes from 2D to 3D growth with constant nucleation rate, despite obtained changes in microstructure or chemical composition of the material. © 2019 Hydrogen Energy Publications LLC",
journal = "International Journal of Hydrogen Energy",
title = "The influence of mechanical milling parameters on hydrogen desorption from Mgh2-Wo3 composites",
volume = "45",
number = "14",
pages = "7901-7911",
doi = "10.1016/j.ijhydene.2019.07.167"
}
Pantić, T., Milanović, I., Lukić, M., Grbović-Novaković, J., Kurko, S. V., Biliškov, N.,& Milošević Govedarović, S. S.. (2020). The influence of mechanical milling parameters on hydrogen desorption from Mgh2-Wo3 composites. in International Journal of Hydrogen Energy, 45(14), 7901-7911.
https://doi.org/10.1016/j.ijhydene.2019.07.167
Pantić T, Milanović I, Lukić M, Grbović-Novaković J, Kurko SV, Biliškov N, Milošević Govedarović SS. The influence of mechanical milling parameters on hydrogen desorption from Mgh2-Wo3 composites. in International Journal of Hydrogen Energy. 2020;45(14):7901-7911.
doi:10.1016/j.ijhydene.2019.07.167 .
Pantić, Tijana, Milanović, Igor, Lukić, Miodrag, Grbović-Novaković, Jasmina, Kurko, Sandra V., Biliškov, Nikola, Milošević Govedarović, Sanja S., "The influence of mechanical milling parameters on hydrogen desorption from Mgh2-Wo3 composites" in International Journal of Hydrogen Energy, 45, no. 14 (2020):7901-7911,
https://doi.org/10.1016/j.ijhydene.2019.07.167 . .

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