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ČERMÁK, J. KRÁL, L. ROUPCOVÁ, P.
Original Title
Influence of long-term ageing upon the capacity of hydrogen storage in two novel Mg-Ni-In-C alloys
Type
journal article in Web of Science
Language
English
Original Abstract
We have shown previously that the addition of In and C enhances the hydrogen desorption capacity and considerably improves the kinetics of hydrogen desorption from Mg-Ni based alloys, important from the perspective of hydrogen storage. In this paper, we present the results of tests of the long-term stability of the sorption behaviour of these materials. We studied how the capacity and sorption kinetics changed 5 years from the preparation of two chosen Mg-Ni-In-C alloys differing in indium concentration. Kinetic curves and PCT isotherms were measured at temperatures of 250-350 degrees C. It was found that long-term storage of the hydrogen charged samples led to no significant downgrade in hydrogen sorption kinetics. However, the absorption capacity somewhat decreased from about 5 wt.% H-2 to about 3 wt.% H-2 due to partial phase decomposition. Relatively intensive tentative oxidation during preparation, which had a slightly beneficial effect on the desorption rate of freshly-prepared samples, caused almost total blocking of hydrogen sorption in the aged samples.
Keywords
hydrogen; hydrogen storage; magnesium alloys; indium
Authors
ČERMÁK, J.; KRÁL, L.; ROUPCOVÁ, P.
Released
1. 1. 2016
Publisher
REDAKCIA KOVOVE MATERIALY
Location
BRATISLAVA 38
ISBN
1338-4252
Periodical
KOVOVE MATERIALY-METALLIC MATERIALS
Year of study
54
Number
6
State
Slovak Republic
Pages from
389
Pages to
396
Pages count
8
URL
http://www.kovmat.sav.sk/article.php?rr=54&cc=6&ss=389
BibTex
@article{BUT176846, author="Jiří {Čermák} and Lubomír {Král} and Pavla {Roupcová}", title="Influence of long-term ageing upon the capacity of hydrogen storage in two novel Mg-Ni-In-C alloys", journal="KOVOVE MATERIALY-METALLIC MATERIALS", year="2016", volume="54", number="6", pages="389--396", doi="10.4149/km\{_}2016\{_}6\{_}389", issn="1338-4252", url="http://www.kovmat.sav.sk/article.php?rr=54&cc=6&ss=389" }