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has been cited by the following article:

• TITLE: Direct Decomposition of NO into N2 and O2 Over C-type Cubic Y2O3-Tb4O7-ZrO2

  AUTHORS: Toshiyuki Masui, Shunji Uejima, Soichiro Tsujimoto, Nobuhito Imanaka

  KEYWORDS: Nitrogen Monoxide; Direct Decomposition; Catalyst; Rare Earth Oxide; C-type Cubic Structure

  JOURNAL NAME: Materials Sciences and Applications, Vol.3 No.10, October 22, 2012

  ABSTRACT: Catalytic activities for direct NO decomposition were investigated over C-type cubic Y2O3–Tb4O7–ZrO2 prepared by a coprecipitation method. The NO decomposition activity was enhanced by partial substitution of the yttrium sites with terbium in a (Y0.97Zr0.03)2O3.03 catalyst, which shows high NO decomposition activity. Among the catalysts synthesized in this study, the (Y0.67Tb0.30Zr0.03)2O3.33 catalyst exhibited the highest NO decomposition activity; NO conversion to N2 was as high as 67% at 900℃ in the absence of O2 (NO/He atmosphere), and a relatively high conversion ratio was observed even in the presence of O2 or CO2, compared with those obtained over conventional direct NO decomposition catalysts. These results indicate that the C-type cubic Y2O3–Tb4O7–ZrO2 catalyst is a new potential candidate for direct NO decomposition.