Nox sorption-desorption mechanism of ZrO2-based oxide

Suzue Kikuyama, Izumi Matsukuma, Tatsuya Takeguchi, Ryuji Kikuchi, Koichi Eguchi, Kazunari Sasaki

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


NOx sorption-desorption by zirconia-based sorbent, Pt-ZrO2/Al2O3 has been investigated. Oxidation of NO to NO2 and to nitrate ions is an important role for Pt. At low temperatures below 200°C, the oxidation activity of Pt is insufficient. As the sorption temperature increased, the amount of NOx desorbing at higher temperatures increased in comparison with the low temperature desorption in TPD. The chemical state of stored NOx species should be changed by reaction temperatures.

Original languageEnglish
Pages (from-to)247-250
Number of pages4
JournalStudies in Surface Science and Catalysis
Publication statusPublished - 2003

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry


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