Plasma-assisted oxidation of carbon particle by lattice oxygen on/in oxide catalyst

Yasushi Sekine, Hiroshi Koyama, Masahiko Matsukata, Eiichi Kikuchi

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Oxidation of carbon particles by lattice oxygen on/in catalysts was investigated with and without electrical discharge at 673 K in a fluidized bed reactor. Application of dielectric barrier discharge promoted the evolution of lattice oxygen in the oxide catalyst, and oxidation of carbon by the evolved lattice oxygen was accelerated by application of the discharge. The total amount of consumed lattice oxygen in/on the catalyst was not changed by the application of the discharge due to the low diffusion rate of bulk oxygen at low temperature. Metal-loaded catalysts such as Ni/CeO2 evolved larger amounts of lattice oxygen because of interaction between the supported Ni particle and ceria support.

Original languageEnglish
Pages (from-to)2-6
Number of pages5
JournalFuel
Volume103
DOIs
Publication statusPublished - 2013 Jan
Externally publishedYes

Fingerprint

Oxides
Carbon
Oxygen
Plasmas
Oxidation
Catalysts
Cerium compounds
Fluidized beds
Metals
Temperature

Keywords

  • Carbon particle
  • DBD plasma
  • Fluidized bed
  • Lattice oxygen
  • Plasma-assisted oxidation

ASJC Scopus subject areas

  • Fuel Technology
  • Energy Engineering and Power Technology
  • Chemical Engineering(all)
  • Organic Chemistry

Cite this

Plasma-assisted oxidation of carbon particle by lattice oxygen on/in oxide catalyst. / Sekine, Yasushi; Koyama, Hiroshi; Matsukata, Masahiko; Kikuchi, Eiichi.

In: Fuel, Vol. 103, 01.2013, p. 2-6.

Research output: Contribution to journalArticle

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AB - Oxidation of carbon particles by lattice oxygen on/in catalysts was investigated with and without electrical discharge at 673 K in a fluidized bed reactor. Application of dielectric barrier discharge promoted the evolution of lattice oxygen in the oxide catalyst, and oxidation of carbon by the evolved lattice oxygen was accelerated by application of the discharge. The total amount of consumed lattice oxygen in/on the catalyst was not changed by the application of the discharge due to the low diffusion rate of bulk oxygen at low temperature. Metal-loaded catalysts such as Ni/CeO2 evolved larger amounts of lattice oxygen because of interaction between the supported Ni particle and ceria support.

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