Details
Originalsprache | Englisch |
---|---|
Seiten (von - bis) | 259-266 |
Seitenumfang | 8 |
Fachzeitschrift | Processing and Application of Ceramics |
Jahrgang | 16 |
Ausgabenummer | 3 |
Publikationsstatus | Veröffentlicht - 2022 |
Abstract
LiAlH4 was modified by mechanical milling and with the addition of 5 wt.% Fe2O3 in order to improve its hydrogen desorption properties. The composite was milled for 1, 3, 5, 7 or 15 min, and depending on the milling time, various phenomena took place. Up to a milling time of 5 min, the particle size of the composite decreases. Further milling leads to the particles agglomeration reaching the size of the starting material after 15 min. Moreover, the mechanical milling process leads to the transformation of AlH4– to AlH63 – structure as a result of partial hydrogen desorption. Hydrogen desorption during the milling is the most pronounced in the sample milled for 15 min, so this sample has only one hydrogen desorption peak in the temperature-programmed desorption measurements. Mechanical milling with the addition of Fe2O3 for up to 15 min improves LiAlH4 hydrogen desorption properties as hydrogen desorption temperature and apparent activation energies decrease.
ASJC Scopus Sachgebiete
- Werkstoffwissenschaften (insg.)
- Keramische und Verbundwerkstoffe
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in: Processing and Application of Ceramics, Jahrgang 16, Nr. 3, 2022, S. 259-266.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
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TY - JOUR
T1 - Study of milling time impact on hydrogen desorption from LiAlH4-Fe2O3 composites
AU - Milanović, Igor
AU - Govedarović, Sanja Milošević
AU - Lukić, Miodrag
AU - Jovanović, Zoran
AU - Rmuš, Jelena
AU - Rajić, Andela Mitrović
AU - Novaković, Jasmina Grbović
AU - Kurko, Sandra
N1 - Funding Information: This research was financially supported by The Ministry of Education, Science and Technology of the Republic of Serbia through the Program of institutional financing
PY - 2022
Y1 - 2022
N2 - LiAlH4 was modified by mechanical milling and with the addition of 5 wt.% Fe2O3 in order to improve its hydrogen desorption properties. The composite was milled for 1, 3, 5, 7 or 15 min, and depending on the milling time, various phenomena took place. Up to a milling time of 5 min, the particle size of the composite decreases. Further milling leads to the particles agglomeration reaching the size of the starting material after 15 min. Moreover, the mechanical milling process leads to the transformation of AlH4– to AlH63 – structure as a result of partial hydrogen desorption. Hydrogen desorption during the milling is the most pronounced in the sample milled for 15 min, so this sample has only one hydrogen desorption peak in the temperature-programmed desorption measurements. Mechanical milling with the addition of Fe2O3 for up to 15 min improves LiAlH4 hydrogen desorption properties as hydrogen desorption temperature and apparent activation energies decrease.
AB - LiAlH4 was modified by mechanical milling and with the addition of 5 wt.% Fe2O3 in order to improve its hydrogen desorption properties. The composite was milled for 1, 3, 5, 7 or 15 min, and depending on the milling time, various phenomena took place. Up to a milling time of 5 min, the particle size of the composite decreases. Further milling leads to the particles agglomeration reaching the size of the starting material after 15 min. Moreover, the mechanical milling process leads to the transformation of AlH4– to AlH63 – structure as a result of partial hydrogen desorption. Hydrogen desorption during the milling is the most pronounced in the sample milled for 15 min, so this sample has only one hydrogen desorption peak in the temperature-programmed desorption measurements. Mechanical milling with the addition of Fe2O3 for up to 15 min improves LiAlH4 hydrogen desorption properties as hydrogen desorption temperature and apparent activation energies decrease.
KW - composites
KW - hydrides
KW - hydrogen storage
KW - kinetics
KW - mechanochemical synthesis
UR - http://www.scopus.com/inward/record.url?scp=85141338721&partnerID=8YFLogxK
U2 - 10.2298/PAC2203259M
DO - 10.2298/PAC2203259M
M3 - Article
AN - SCOPUS:85141338721
VL - 16
SP - 259
EP - 266
JO - Processing and Application of Ceramics
JF - Processing and Application of Ceramics
SN - 1820-6131
IS - 3
ER -