Promotion of N2O decomposition by Zr4+-doped CeO2 used as support of Rh catalyst

Min Jae Kim, Hye Jeong Kim, Seung Jae Lee, In Soo Ryu, Hyung Chul Yoon, Ki Bong Lee, Sang Goo Jeon

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


A series of Ce1-xZrxO2 -supported Rh catalysts was prepared and their catalytic efficiencies for N2O decomposition was determined in the 200–400 °C range. The activity of this catalytic system was found to be largely influenced by the Ce:Zr weight ratio. The Rh/Ce-ZrO2 catalyst with a small amount of ZrO2 showed a significantly improved activity performance than the Rh/CeO2 catalyst, particularly when O2 or H2O were present in the feed gas of N2O. H2 temperature-programmed reduction and X-ray photoelectron spectroscopy studies showed that the incorporation of Zr4+ in the CeO2 lattice used as support of Rh catalyst improved Rh dispersion and redox ability, and stabilized Rh3+ species on the catalyst surface.

Original languageEnglish
Article number105764
JournalCatalysis Communications
Publication statusPublished - 2019 Oct

Bibliographical note

Funding Information:
This work was conducted under the framework of the Research and Development Program of the Korea Institute of Energy Research (KIER) ( B9-2451-13 ).

Publisher Copyright:
© 2019 Elsevier B.V.


  • Ce–ZrO support
  • HO-tolerance in deNO
  • NO decomposition
  • Rh catalyst

ASJC Scopus subject areas

  • Catalysis
  • General Chemistry
  • Process Chemistry and Technology


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