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

6 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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