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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F16%3APU143715" target="_blank" >RIV/00216305:26620/16:PU143715 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.kovmat.sav.sk/article.php?rr=54&cc=6&ss=389" target="_blank" >http://www.kovmat.sav.sk/article.php?rr=54&cc=6&ss=389</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4149/km_2016_6_389" target="_blank" >10.4149/km_2016_6_389</a>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

20506 - Coating and films

Projekt

<a href="/cs/project/ED1.1.00%2F02.0068" target="_blank" >ED1.1.00/02.0068: CEITEC - central european institute of technology</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

KOVOVE MATERIALY-METALLIC MATERIALS

ISSN

0023-432X

e-ISSN

1338-4252

Svazek periodika

54

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

8

Strana od-do

389-396

Kód UT WoS článku

000390642600001

EID výsledku v databázi Scopus

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