The hydrogen evolution of pure magnesium in different electrolytes

S. H. Salleh, W. E. Jantan, R. A. Malek, S. S.C. Abdullah, P. Balan

    Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

    Abstract

    The hydrogen gas evolution from the corroding magnesium (Mg) arises not only from the bare Mg surface but also from the Mg(OH)2 oxide layer as well. In fact, the presence of Mg(OH)2 oxide layer also doubled the rate of hydrogen gas evolution. In this work, a conventional hydrogen gas collection using volumetric method has been applied to observe the effect of sodium chloride (NaCl) on hydrogen evolution of Mg. Cathodic polarization and scanning electron microscopic (SEM) tests had been done in the same solution to confirm the observations. These observations demonstrate that, even though the initial surface of Mg had been fully covered by Mg(OH)2 oxide layer, the abundant hydrogen gas still can be released from the corroded surface. In addition, the double increases of hydrogen evolution rate (HER) during free corrosion in 7.0% NaCl can be seen as compared to distilled water.

    Original languageEnglish
    Title of host publicationProceedings of Green Design and Manufacture 2020
    EditorsShayfull Zamree Abd Rahim, Mohd Nasir Mat Saad, Mohd Mustafa Al Bakri Abdullah, Muhammad Faheem Mohd Tahir, Nurul Aida Mohd Mortar
    PublisherAmerican Institute of Physics
    ISBN (Electronic)9780735440913
    DOIs
    Publication statusPublished - 3 May 2021
    EventInternational Conference on Green Design and Manufacture 2020 - Arau, Malaysia
    Duration: 23 Jul 202024 Jul 2020
    Conference number: 6th
    https://aip.scitation.org/toc/apc/2339/1 (Proceedings)

    Publication series

    NameAIP Conference Proceedings
    Volume2339
    ISSN (Print)0094-243X
    ISSN (Electronic)1551-7616

    Conference

    ConferenceInternational Conference on Green Design and Manufacture 2020
    Abbreviated titleIConGDM 2020
    CountryMalaysia
    CityArau
    Period23/07/2024/07/20
    Internet address

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