Improvement of hydrogen storage kinetics in ball-milled magnesium doped with antimony

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F17%3A00473332" target="_blank" >RIV/68081723:_____/17:00473332 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216305:26210/17:PU140495

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0360319916334012?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0360319916334012?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ijhydene.2016.11.113" target="_blank" >10.1016/j.ijhydene.2016.11.113</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Improvement of hydrogen storage kinetics in ball-milled magnesium doped with antimony

Popis výsledku v původním jazyce

Kinetics and dynamics of hydrogen storage are studied in magnesium based alloys Mg–Sb–C doped with 5, 13.3 and 21 wt.% of antimony at temperatures between 275 °C and 350 °C. Carbon is added in order to facilitate the ball milling. MgH2 hydride is the principal hydrogen storage phase in all studied alloys. It is found that antimony (i) significantly improves the kinetics of hydrogen sorption compared to hydrogen sorption in pure Mg, and (ii) after long-term ball milling Sb attains the high sorption capacity cmax, which approaches the maximum theoretical value of the pure MgH2 hydride, cth = 7.7 wt.% H2. The high value of cmax remains unchanged in the whole temperature interval from 275 °C to 350 °C. At the temperature of 350 °C, the 90% of cmax is (ab/de)sorbed typically within approximately 5 min starting with the second sorption cycle.

Název v anglickém jazyce

Improvement of hydrogen storage kinetics in ball-milled magnesium doped with antimony

Popis výsledku anglicky

Kinetics and dynamics of hydrogen storage are studied in magnesium based alloys Mg–Sb–C doped with 5, 13.3 and 21 wt.% of antimony at temperatures between 275 °C and 350 °C. Carbon is added in order to facilitate the ball milling. MgH2 hydride is the principal hydrogen storage phase in all studied alloys. It is found that antimony (i) significantly improves the kinetics of hydrogen sorption compared to hydrogen sorption in pure Mg, and (ii) after long-term ball milling Sb attains the high sorption capacity cmax, which approaches the maximum theoretical value of the pure MgH2 hydride, cth = 7.7 wt.% H2. The high value of cmax remains unchanged in the whole temperature interval from 275 °C to 350 °C. At the temperature of 350 °C, the 90% of cmax is (ab/de)sorbed typically within approximately 5 min starting with the second sorption cycle.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/LQ1601" target="_blank" >LQ1601: CEITEC 2020</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

International Journal of Hydrogen Energy

ISSN

0360-3199

e-ISSN

1879-3487

Svazek periodika

42

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

6144-6151

Kód UT WoS článku

000399507100051

EID výsledku v databázi Scopus

2-s2.0-85008151980