Surface and structural characterization of CexZr1-xO2 CEZIRENCAT mixed oxides as potential three-way catalyst promoters

G Colon, M Pijolat, F Valdivieso, H Vidal, J Kaspar, E Finocchio, M Daturi, C Binet, J C Lavalley, R T Baker, S Bernal

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187 Citations (Scopus)

Abstract

The textural and structural properties of high specific surface area. (HS) CexZr1-xO2 mixed oxides (CeZrMO) and their modification upon thermal aging have been investigated. Results from BET area determination and complete porosity analysis, as well as high-resolution electron microscopy, XRD, Raman and FTIR spectroscopies are presented. Some relationships between the molar composition of the binary systems and their textural and structural properties are presented. In addition, it has been possible to propose an explanation for structural features of the mixed oxides (solid-solution structures and possible phase segregation) as a function of Ce content, a point of great interest for the knowledge of phase composition and stability of CeZrMO.

Original languageEnglish
Pages (from-to)3717-3726
Number of pages10
JournalJournal of the Chemical Society, Faraday Transactions
Volume94
Issue number24
DOIs
Publication statusPublished - 21 Dec 1998

Keywords

  • CEO2-ZRO2 SOLID-SOLUTIONS
  • OXYGEN STORAGE
  • CERIA
  • ZIRCONIA
  • REDUCTION
  • ZRO2-CEO2
  • DIAGRAM
  • SYSTEM
  • TEMPERATURE
  • METHANOL

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