Ammonia Synthesis Over Co Catalyst in an Electric Field

Ami Gondo, Ryo Manabe, Ryuya Sakai, Kota Murakami, Tomohiro Yabe, Shuhei Ogo, Masatoshi Ikeda, Hideaki Tsuneki, Yasushi Sekine*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


Abstract: Ammonia is an important chemical feedstock and is produced by Ru or Fe catalyst so far. We investigated Co catalyst for low temperature ammonia synthesis in an electric field. Well-reduced Co/Ce0.5Zr0.5O2 catalyst showed high activity for ammonia synthesis even at 473 K in the electric field. Various characterizations including kinetic tests, operando DRIFTS measurements, TEM observations, and XAFS measurements, revealed that the active site is the interface between supported Co and Ce0.5Zr0.5O2 oxide support, thanks to the surface protonics derived from an electric field. Graphical Abstract: [Figure not available: see fulltext.].

Original languageEnglish
Pages (from-to)1929-1938
Number of pages10
JournalCatalysis Letters
Issue number7
Publication statusPublished - 2018 Jul 1


  • Ammonia synthesis
  • Cobalt catalyst
  • Electric field
  • Perimeter
  • Proton hopping

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)


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