Dopant-Assisted Control of the Crystallite Domain Size in Hollow Ternary Iridium Alloy Octahedral Nanocages toward the Oxygen Evolution Reaction

Taehyun Kwon, Minki Jun, Gi Joo Bang, Heesu Yang, Jinwhan Joo, Taekyung Kim, Jun Kim, Jong Min Kim, Hionsuck Baik, Yousung Jung, Jin Young Kim, Kwangyeol Lee

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Kwon et al. demonstrate that the structural evolution of Ir-oxide nanocatalysts during OER depends on the crystallinity of the precursor Ir-alloy nanostructures. The loosely knit IrO2@amorphous-IrOx structure, derived from the polycrystalline ternary Ir-alloy nanocage, exhibits high OER activity as well as long-term stability.

Original languageEnglish
Article number100260
JournalCell Reports Physical Science
Volume1
Issue number12
DOIs
Publication statusPublished - 2020 Dec 23

Keywords

  • crystallinity
  • doping
  • electrocatalyst
  • grain size
  • iridium-based alloy
  • nanocage
  • oxygen evolution reaction

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Materials Science(all)
  • Chemistry(all)
  • Energy(all)
  • Engineering(all)

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