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

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

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)1-10
Number of pages10
JournalCatalysis Letters
DOIs
Publication statusAccepted/In press - 2018 May 11

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Ammonia
Electric fields
Catalysts
Oxides
Feedstocks
Transmission electron microscopy
Kinetics
Temperature

Keywords

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

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

Cite this

Ammonia Synthesis Over Co Catalyst in an Electric Field. / Gondo, Ami; Manabe, Ryo; Sakai, Ryuya; Murakami, Kota; Yabe, Tomohiro; Ogo, Shuhei; Ikeda, Masatoshi; Tsuneki, Hideaki; Sekine, Yasushi.

In: Catalysis Letters, 11.05.2018, p. 1-10.

Research output: Contribution to journalArticle

Gondo, Ami ; Manabe, Ryo ; Sakai, Ryuya ; Murakami, Kota ; Yabe, Tomohiro ; Ogo, Shuhei ; Ikeda, Masatoshi ; Tsuneki, Hideaki ; Sekine, Yasushi. / Ammonia Synthesis Over Co Catalyst in an Electric Field. In: Catalysis Letters. 2018 ; pp. 1-10.
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AU - Ikeda, Masatoshi

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AU - Sekine, Yasushi

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AB - 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.]

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