One-step nanoporous structure formation using NiO nanoparticles: Pore size control and pore size dependence of hydrogen evolution reaction

Yoshikazu Ito, Masahiko Izumi, Daisuke Hojo, Mitsuru Wakisaka, Tsutomu Aida, Tadafumi Adschiri

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

A nanoporous nickel with tunable pore size was prepared with a one-step annealing method using nickel oxide nanoparticles. The in situ formation of nanoporous structures occurs by the sequential cooperation of reduction of nickel oxide on the surface and anisotropic reconstruction of reduced nickel under a hydrogen reductive atmosphere. The nickel oxide skeleton inside the nanoporous structures plays an important role to suppress coarsening of nanoporous structures. The resulting tunable nanoporous nickel provides good understanding of pore size dependence in the hydrogen evolution reaction in electrolysis of water.

Original languageEnglish
Pages (from-to)267-270
Number of pages4
JournalChemistry Letters
Volume46
Issue number2
DOIs
Publication statusPublished - 2017 Jan 1

Keywords

  • Hydrogen evolution reaction
  • Nanoporous Ni
  • Nanoporous formation

ASJC Scopus subject areas

  • Chemistry(all)

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