Complementary operando insights into the activation of multicomponent selective propylene oxidation catalysts

Matthias Stehle,Abhijeet Gaur,Sebastian Weber,Thomas L. Sheppard,Michael Thomann,Achim Fischer,J.-D. Grunwaldt

Journal of Catalysis（2022）

引用 7|浏览12

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摘要

•Complementary operando characterization of multicomponent Bi–Mo–Co–Fe–O catalysts.•Structure activity correlations for multiphase catalyst systems.•Unselective role of MoO3 in selective oxidation of propylene to acrolein.•Phase formation depends on elemental composition, gas atmosphere and temperature.•Formation of ternary molybdates; synergistic interplay with bismuth molybdate.

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关键词

Selective oxidation,Propylene,Acrolein,Mixed metal oxides,Bismuth molybdates,X–ray absorption spectroscopy,X–ray diffraction,Raman spectroscopy,Operando,Synchrotron radiation

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