Fast hydrogen sorption from MgH2-VO2(B) composite materials
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2016
Authors
Milošević, Sanja S.
Kurko, Sandra V.

Pasquini, Luca

Matović, Ljiljana

Vujasin, Radojka

Novaković, Nikola

Grbović-Novaković, Jasmina

Article (Published version)
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The hydrogen sorption kinetics of MgH2-VO2(B) composites synthesised by mechanical milling have been studied. The microstructural properties of composites were characterized by means of X-ray diffraction (XRD), Raman spectroscopy, Scanning electron microscopy (SEM), Particle size analysis (PSD), while sorption behaviour was followed by differential scanning calorimetry (DSC) and Sievert measurements. Results have shown that although desorption temperature reduction is moderate; there is a substantial improvement in hydrogen sorption kinetics. The complete desorption of pure MgH2 at elevated temperature takes place in more than 30 min while the composite fully desorbs in less than 2 min even at lower temperatures. It has been shown that the metastable gamma-MgH2 phase and the point defects have a decisive role in desorption process only in the first sorption cycle, while the second and the subsequent sorption cycles are affected by microstructural and morphological characteristics of th...e composite. (C) 2015 Elsevier B.V. All rights reserved.
Keywords:
MgH2 / VO2 (B) / Composites / Ball milling / Kinetics / (de)sorptionSource:
Journal of Power Sources, 2016, 307, 481-488Funding / projects:
DOI: 10.1016/j.jpowsour.2015.12.108
ISSN: 0378-7753; 1873-2755
WoS: 000370884000059
Scopus: 2-s2.0-84954053650
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VinčaTY - JOUR AU - Milošević, Sanja S. AU - Kurko, Sandra V. AU - Pasquini, Luca AU - Matović, Ljiljana AU - Vujasin, Radojka AU - Novaković, Nikola AU - Grbović-Novaković, Jasmina PY - 2016 UR - https://vinar.vin.bg.ac.rs/handle/123456789/274 AB - The hydrogen sorption kinetics of MgH2-VO2(B) composites synthesised by mechanical milling have been studied. The microstructural properties of composites were characterized by means of X-ray diffraction (XRD), Raman spectroscopy, Scanning electron microscopy (SEM), Particle size analysis (PSD), while sorption behaviour was followed by differential scanning calorimetry (DSC) and Sievert measurements. Results have shown that although desorption temperature reduction is moderate; there is a substantial improvement in hydrogen sorption kinetics. The complete desorption of pure MgH2 at elevated temperature takes place in more than 30 min while the composite fully desorbs in less than 2 min even at lower temperatures. It has been shown that the metastable gamma-MgH2 phase and the point defects have a decisive role in desorption process only in the first sorption cycle, while the second and the subsequent sorption cycles are affected by microstructural and morphological characteristics of the composite. (C) 2015 Elsevier B.V. All rights reserved. T2 - Journal of Power Sources T1 - Fast hydrogen sorption from MgH2-VO2(B) composite materials VL - 307 SP - 481 EP - 488 DO - 10.1016/j.jpowsour.2015.12.108 ER -
@article{ author = "Milošević, Sanja S. and Kurko, Sandra V. and Pasquini, Luca and Matović, Ljiljana and Vujasin, Radojka and Novaković, Nikola and Grbović-Novaković, Jasmina", year = "2016", abstract = "The hydrogen sorption kinetics of MgH2-VO2(B) composites synthesised by mechanical milling have been studied. The microstructural properties of composites were characterized by means of X-ray diffraction (XRD), Raman spectroscopy, Scanning electron microscopy (SEM), Particle size analysis (PSD), while sorption behaviour was followed by differential scanning calorimetry (DSC) and Sievert measurements. Results have shown that although desorption temperature reduction is moderate; there is a substantial improvement in hydrogen sorption kinetics. The complete desorption of pure MgH2 at elevated temperature takes place in more than 30 min while the composite fully desorbs in less than 2 min even at lower temperatures. It has been shown that the metastable gamma-MgH2 phase and the point defects have a decisive role in desorption process only in the first sorption cycle, while the second and the subsequent sorption cycles are affected by microstructural and morphological characteristics of the composite. (C) 2015 Elsevier B.V. All rights reserved.", journal = "Journal of Power Sources", title = "Fast hydrogen sorption from MgH2-VO2(B) composite materials", volume = "307", pages = "481-488", doi = "10.1016/j.jpowsour.2015.12.108" }
Milošević, S. S., Kurko, S. V., Pasquini, L., Matović, L., Vujasin, R., Novaković, N.,& Grbović-Novaković, J.. (2016). Fast hydrogen sorption from MgH2-VO2(B) composite materials. in Journal of Power Sources, 307, 481-488. https://doi.org/10.1016/j.jpowsour.2015.12.108
Milošević SS, Kurko SV, Pasquini L, Matović L, Vujasin R, Novaković N, Grbović-Novaković J. Fast hydrogen sorption from MgH2-VO2(B) composite materials. in Journal of Power Sources. 2016;307:481-488. doi:10.1016/j.jpowsour.2015.12.108 .
Milošević, Sanja S., Kurko, Sandra V., Pasquini, Luca, Matović, Ljiljana, Vujasin, Radojka, Novaković, Nikola, Grbović-Novaković, Jasmina, "Fast hydrogen sorption from MgH2-VO2(B) composite materials" in Journal of Power Sources, 307 (2016):481-488, https://doi.org/10.1016/j.jpowsour.2015.12.108 . .