A study of the C-NO reaction by using isotopically labelled C and NO

Philippe Chambrion, Hironori Orikasa, Takeshi Suzuki, Takashi Kyotani, Akira Tomita

Research output: Contribution to journalArticlepeer-review

98 Citations (Scopus)


The role of O- and N-containing surface species in the course of NO reduction over phenol-formaldehyde resin char and amorphous 13C was investigated. The presence of O-containing complexes on the char surface was shown to increase the reactivity towards NO by providing free reactive sites. The presence of O2 also enhanced the NO reduction reaction greatly. A mass balance during temperature-programmed reaction indicated nitrogen accumulation on the char surface. The reaction mechanism was examined by a transient kinetic approach, in which the reactant gas was switched from 14N16O to 15N18O. The surface N-containing species produced and accumulated in the first stage, C(14N), was found to react with 15N18O, yielding 14N15N. This indicated that one N2 formation path is the reaction between nitrogen-containing surface compound and NO.

Original languageEnglish
Pages (from-to)493-498
Number of pages6
Issue number6
Publication statusPublished - 1997 May


  • Carbon surface complexes
  • Nitric oxide reduction
  • Reaction mechanism

ASJC Scopus subject areas

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


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