Journal
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN
Volume 92, Issue 7, Pages 1148-1153Publisher
CHEMICAL SOC JAPAN
DOI: 10.1246/bcsj.20190058
Keywords
Catalyst; Nitrous oxide; Rare earth sesquioxide
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(Yb1-xCox)(2)O3-delta catalysts with cubic (C-type) rare-earth sesquioxide structure were synthesized by a co-precipitation method. The introduction of Co2+/3+ ions into the Yb2O3 lattice resulted in an improved catalytic activity for N2O decomposition, due to the enhanced redox properties and increased amount of active sites. Among the prepared catalysts, (Yb0.90Co0.10)(2)O3-delta exhibited the highest activity for the decomposition of N2O, which was completely converted to N-2 and O-2 at 500 degrees C. Moreover, (Yb0.90Co0.10)(2)O3-delta also showed high durability in the presence of H2O, O-2, or CO2.
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