Porous aluminum electrodes with 3D channels and zig-zag edges for efficient hydrogen evolution

  • Arun Prakash Periasamy
  • , Pavithra Sriram
  • , Yu Wen Chen
  • , Chien Wei Wu
  • , Ta Jen Yen
  • , Huan Tsung Chang*
  • *Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

6 Scopus citations

Abstract

An eco-friendly electrochemical approach, including base and acid treatments, and anodization, has been developed for preparation of defect-rich porous aluminum electrodes for efficient hydrogen evolution. A small Tafel slope value of 43 mV dec-1 reveals improved reaction kinetics through the micropores, 3D channels, and zig-zag edges of the aluminum electrode. It exhibits an onset potential of 460 mV and an overpotential of 580 mV at the current density of 10 mA cm-2 due to the porous and edge structures that enhance the charge transfer and mass transport.

Original languageEnglish
Pages (from-to)5447-5450
Number of pages4
JournalChemical Communications
Volume55
Issue number38
DOIs
StatePublished - 2019
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2019 The Royal Society of Chemistry.

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