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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F16%3A00466903" target="_blank" >RIV/68081723:_____/16:00466903 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.4149/km_2016_6_389" target="_blank" >http://dx.doi.org/10.4149/km_2016_6_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 hydrogennstorage 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 desorptionncapacity and considerably improves the kinetics of hydrogen desorption from Mg-Ni basednalloys, important from the perspective of hydrogen storage. In this paper, we present the resultsnof tests of the long-term stability of the sorption behaviour of these materials. We studiednhow the capacity and sorption kinetics changed 5 years from the preparation of two chosennMg-Ni-In-C alloys differing in indium concentration. Kinetic curves and PCT isotherms werenmeasured at temperatures of 250–350 C. It was found that long-term storage of the hydrogen-ncharged samples led to no significant downgrade in hydrogen sorption kinetics. However, thenabsorption capacity somewhat decreased from about 5 wt.% H 2 to about 3 wt.% H 2 duento partial phase decomposition. Relatively intensive tentative oxidation during preparation,nwhich had a slightly beneficial effect on the desorption rate of freshly-prepared samples, causednalmost total blocking of hydrogen sorption in the aged samples.

Název v anglickém jazyce

Influence of long-term ageing upon the capacity of hydrogennstorage 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 desorptionncapacity and considerably improves the kinetics of hydrogen desorption from Mg-Ni basednalloys, important from the perspective of hydrogen storage. In this paper, we present the resultsnof tests of the long-term stability of the sorption behaviour of these materials. We studiednhow the capacity and sorption kinetics changed 5 years from the preparation of two chosennMg-Ni-In-C alloys differing in indium concentration. Kinetic curves and PCT isotherms werenmeasured at temperatures of 250–350 C. It was found that long-term storage of the hydrogen-ncharged samples led to no significant downgrade in hydrogen sorption kinetics. However, thenabsorption capacity somewhat decreased from about 5 wt.% H 2 to about 3 wt.% H 2 duento partial phase decomposition. Relatively intensive tentative oxidation during preparation,nwhich had a slightly beneficial effect on the desorption rate of freshly-prepared samples, causednalmost total blocking of hydrogen sorption in the aged samples.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BJ - Termodynamika

OECD FORD obor

—

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

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Kovové materiály

ISSN

0023-432X

e-ISSN

—

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

2-s2.0-85006415908