NO oxidation and NOx storage over Ce-Zr mixed oxide supported catalysts

Caglar B., ÜNER D.

CATALYSIS COMMUNICATIONS, cilt.12, sa.6, ss.450-453, 2011 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 12 Sayı: 6
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1016/j.catcom.2010.10.022
  • Dergi Adı: CATALYSIS COMMUNICATIONS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.450-453
  • Anahtar Kelimeler: NOx storage, NO oxidation, Ce-Zr mixed oxide, In-situ DRIFTS, MNO(X)-CEO2 BINARY OXIDES, IN-SITU FTIR, NSR-CATALYSTS, LOW-TEMPERATURES, OXYGEN STORAGE, REDUCTION, ADSORPTION, BEHAVIOR, REMOVAL, CERIA
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

NO oxidation and NO storage behavior of 1% Pt/10% BaO/CexZr1-xO2 (x=0, 0.25, 0.5, 0.75, 1) catalysts prepared by the Pechini method were investigated via Diffuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFTS) spectroscopy. DRIFTS study revealed that in the presence of Pt/BaO/Ce0.5Zr0.5O2, NO is oxidized to NO2 in the absence of gas phase O-2 at room temperature due to high oxygen mobility in the support material. (C) 2010 Elsevier B.V. All rights reserved.