Počet záznamů: 1
Improvement of hydrogen storage properties of Mg by catalytic effect of Al-containing phases in Mg-Al-Ti-Zr-C powders
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SYSNO ASEP 0504489 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Improvement of hydrogen storage properties of Mg by catalytic effect of Al-containing phases in Mg-Al-Ti-Zr-C powders Tvůrce(i) Král, Lubomír (UFM-A) RID, ORCID
Čermák, Jiří (UFM-A) RID, ORCIDCelkový počet autorů 2 Zdroj.dok. International Journal of Hydrogen Energy. - : Elsevier - ISSN 0360-3199
Roč. 44, č. 26 (2019), s. 13561-13568Poč.str. 8 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova Hydrogen storage ; Mg-alloys ; Aluminum ; Ball milling Vědní obor RIV JG - Hutnictví, kovové materiály Obor OECD Materials engineering CEP GA17-21683S GA ČR - Grantová agentura ČR LQ1601 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Způsob publikování Omezený přístup Institucionální podpora UFM-A - RVO:68081723 UT WOS 000470051300060 EID SCOPUS 85064281569 DOI 10.1016/j.ijhydene.2019.03.188 Anotace The hydrogen storage (HS) properties and structures of ball-milled (BM) Mg-Ti-Al-Zr-C powders prepared under various milling conditions were investigated. The additions Ti, Zr, Al and C improved HS performance of Mg-based materials. The beneficial effect can be explained by catalysis of particles rich in Al, Ti and Zr located on the surface of Mg grains. The particles provide effective pathways for the hydrogen diffusion from/into the re/forming MgH2. The morphological and microstructural characteristics were investigated by scanning electron microscopy (SEM), high resolution transmission electron microscopy (HRTEM) and by X-ray diffraction (XRD). The hydrogen sorption was measured by Sieverts method. The various preparation processes of powders resulted in two phases: Mg17Al12, Mg1.95Al0.05. It was found, that mainly these phases had a strong positive effect on HS properties of studied powders. Both phases increased desorption/absorption equilibrium pressure. Improvement of desorption kinetics of powder containing phase Mg17Al12 was more expressive than powders with of Mg1.95Al0.05. Pracoviště Ústav fyziky materiálu Kontakt Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Rok sběru 2020 Elektronická adresa https://www.sciencedirect.com/science/article/pii/S0360319919312170?via%3Dihub
Počet záznamů: 1