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5. Improved catalytic properties of Co3O4-impregnated La2O3/MgO over Co3O4/MgO catalyst in the oxidative dehydrogenation of ethylbenzene.

Author

Madduluri, Venkata Rao, Narsinga, Raju, Mallesh, Dosa, Mahesh Kumar, P., Barapati, Shankar, Bojja, Sreedhar, and Rama Rao, Kamaraju Seetha

Subjects
OXIDATIVE dehydrogenation, CATALYSTS, CATALYTIC dehydrogenation, LANTHANUM oxide, CATALYTIC activity, STYRENE
Abstract

A series of lanthanum oxide (La2O3—2–14 wt%)-encapsulated Co3O4/MgO catalysts and bare Co/MgO solid oxides were prepared by wetness impregnation method. Among all catalysts, La2O3-promoted Co3O4/MgO (CM) was found to be remarkable in terms of superior promotional effect of La oxide species. Therefore, La2O3-incorporated Co3O4/MgO (LCM) catalysts afforded unusual catalytic activity efficiency with respect to high EB conversion and styrene selectivity due to the synergistic effect of Co–La species. By contrast, bare Co3O4/MgO solid oxide (CM) catalyst afforded low EB conversion with mild catalytic activity due to the absence of promotional role of La oxide. [ABSTRACT FROM AUTHOR]

Published
2020
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