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Hydrogen desorption from alloys Mg–Cu(–KCl): Cu catalysis in detail

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F21%3A00541828" target="_blank" >RIV/68081723:_____/21:00541828 - isvavai.cz</a>

  • Alternative codes found

    RIV/00216305:26620/21:PU142264

  • Result on the web

    <a href="https://www.sciencedirect.com/science/article/pii/S0360319921003633?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0360319921003633?via%3Dihub</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.ijhydene.2021.01.193" target="_blank" >10.1016/j.ijhydene.2021.01.193</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Hydrogen desorption from alloys Mg–Cu(–KCl): Cu catalysis in detail

  • Original language description

    Effect of chemical composition of Mg-xCu based alloys (x = 9.94–58.00 wt %) modified by KCl upon their hydrogen storage performance was studied. Kinetic curves and pressure-concentration isotherms were measured in the ranges up to 60 bar and 388 °C, respectively. It was observed that desorption rate dc/dt is not significantly influenced by the composition. Unknown Cu-rich phase was detected that has shown a catalytic effect on desorption from a mixture with other phases. Activation energy of hydrogen desorption decreased with increasing x from 180 kJ/mol down to 98 kJ/mol. Average hydride dissociation enthalpy, ΔH, for the lowest plateau was 75 kJ/mol which is equal to literature value for pure Mg. Slightly lover average value, 67 kJ/mol was obtained for the second plateau and ΔH for the third one decreased from 70 kJ/mol for the lowest to 49 kJ/mol for the highest x.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    20501 - Materials engineering

Result continuities

  • Project

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

  • Continuities

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

Others

  • Publication year

    2021

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    International Journal of Hydrogen Energy

  • ISSN

    0360-3199

  • e-ISSN

    1879-3487

  • Volume of the periodical

    46

  • Issue of the periodical within the volume

    27

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    14

  • Pages from-to

    14494-14507

  • UT code for WoS article

    000639329700012

  • EID of the result in the Scopus database

    2-s2.0-85101324722