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Osadaetal.usedY,O,-CaOofvariouscompositionsasOCMcatalystsandfoundthatC,,selectivityat...
Osada et al. used
Y,O,-CaOof various compositions as OCM catalysts and found that C,, selectivity
at 973 K was significantly enhanced by adding a few mol-% of Y2O3 to CaO. They
suggested that interstitial oxygen ions generated by substituting Ca2+ ions
with Y 3+ ions are responsible for methane activation. Similarly, Becker and
Baerns[191 enhanced C2+
selectivity signifi- cantly by adding a few mol-% of La,O, to CaO (the metal
ion La3+ has higher valence than that of the parent metal ion, Ca2+) 展开
Y,O,-CaOof various compositions as OCM catalysts and found that C,, selectivity
at 973 K was significantly enhanced by adding a few mol-% of Y2O3 to CaO. They
suggested that interstitial oxygen ions generated by substituting Ca2+ ions
with Y 3+ ions are responsible for methane activation. Similarly, Becker and
Baerns[191 enhanced C2+
selectivity signifi- cantly by adding a few mol-% of La,O, to CaO (the metal
ion La3+ has higher valence than that of the parent metal ion, Ca2+) 展开
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