Publication detail

Influence of long-term ageing upon the capacity of hydrogen storage in two novel Mg-Ni-In-C alloys

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"
}