Beneficial effect of carbon on hydrogen desorption kinetics from Mg?Ni?In alloy

Kód výsledku v IS VaVaI

RIV/68081723:_____/13:00381560 - isvavai.cz

Výsledek na webu

http://dx.doi.org/10.1016/j.jallcom.2012.08.037

DOI - Digital Object Identifier

10.1016/j.jallcom.2012.08.037

Jazyk výsledku

angličtina

Název v původním jazyce

Beneficial effect of carbon on hydrogen desorption kinetics from Mg?Ni?In alloy

Popis výsledku v původním jazyce

In the present paper, hydrogen desorption kinetics from hydrided Mg?Ni?In?C alloys was investigated. A chemical composition that substantially accelerates hydrogen desorption was found. It was observed that carbon improves the hydrogen desorption kinetics significantly. Its beneficial effect was found to be optimum close to the carbon concentration of about Cc 5 wt.%. With this composition, stored hydrogen can be desorbed readily at temperatures down to about 485 K, immediately after hydrogen charging.This can substantially shorten the hydrogen charging/discharging cycle of storage tanks using Mg?Ni-based alloys as hydrogen storage medium. For higher carbon concentrations, unwanted phases precipitated, likely resulting in deceleration of hydrogen desorption and lower hydrogen storage capacity.

Název v anglickém jazyce

Beneficial effect of carbon on hydrogen desorption kinetics from Mg?Ni?In alloy

Popis výsledku anglicky

In the present paper, hydrogen desorption kinetics from hydrided Mg?Ni?In?C alloys was investigated. A chemical composition that substantially accelerates hydrogen desorption was found. It was observed that carbon improves the hydrogen desorption kinetics significantly. Its beneficial effect was found to be optimum close to the carbon concentration of about Cc 5 wt.%. With this composition, stored hydrogen can be desorbed readily at temperatures down to about 485 K, immediately after hydrogen charging.This can substantially shorten the hydrogen charging/discharging cycle of storage tanks using Mg?Ni-based alloys as hydrogen storage medium. For higher carbon concentrations, unwanted phases precipitated, likely resulting in deceleration of hydrogen desorption and lower hydrogen storage capacity.

Druh

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

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název periodika

Journal of Alloys and Compounds

ISSN

0925-8388

e-ISSN

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Svazek periodika

546

Číslo periodika v rámci svazku

JAN

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

129-137

Kód UT WoS článku

000311503000020

EID výsledku v databázi Scopus

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