Hydrolytic hydrogen production on Al-Sn-Zn alloys processed by high-pressure torsion

Fan Zhang, Kaveh Edalati, Makoto Arita, Zenji Horita

    Research output: Contribution to journalArticlepeer-review

    13 Citations (Scopus)

    Abstract

    Aluminium-tin-based alloys with different compositions were synthesized by a high-pressure torsion (HPT) method. The effect of different alloying elements and processing routes on the hydrogen generation performance of the alloys was investigated. The results show that Zn can enhance the hydrogen generation rate and yield by promoting pitting corrosion. The highest reactivity in water was achieved for an Al-30wt %Sn-10wt %Zn alloy. Detailed analysis of the Al-30wt %Sn-10wt %Zn alloy shows that increasing the shear strain and the resultant formation of ultrafine grains and phase mixing enhance the hydrogen generation rate through the effects of both nanogalvanic cells and pitting corrosion.

    Original languageEnglish
    Article number1209
    JournalMaterials
    Volume11
    Issue number7
    DOIs
    Publication statusPublished - Jul 13 2018

    All Science Journal Classification (ASJC) codes

    • Materials Science(all)

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