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Perovskite-like catalysts LaBO3 (B = Cu, Fe, Mn, Co, Ni) for wet peroxide oxidation of phenol

Paper ID Volume ID Publish Year Pages File Format Full-Text
45223 46407 2016 8 PDF Available
Title
Perovskite-like catalysts LaBO3 (B = Cu, Fe, Mn, Co, Ni) for wet peroxide oxidation of phenol
Abstract

•Perovskite-like transition metal oxides LaBO3 were synthesized by Peccini method.•LaBO3 (B = Mn, Fe, Cu, Ni, Сî) were tested in CWPO of phenol.•Catalytic activity was only observed for Fe- and Cu-containing perovskites.•LaFeO3 was enough stable to leaching of active component during forty cycles of CWPO.•XRD studies of spent LaBO3 have shown stability of perovskite-like structures.

The catalytic behavior of perovskite-like oxides LaBO3 (B = Cu, Fe, Co, Ni, Mn) prepared by the Pecini method were examined in wet peroxide oxidation of phenol as a model organic substrate. The study showed the activity of only LaCuO3 and LaFeO3 perovskite-like catalysts, Cu-containing catalysts being more active, though Fe-containing being more stable. The leaching test proved the heterogeneous nature of the catalyst action. The long-term experiments revealed the acceptable stability of the LaFeO3 catalyst. XRD studies of the spent samples demonstrated the stability of the perovskite-like structure of the catalysts during the reaction. The assumption about the nature of the active sites and the possible mechanism of the reaction was proposed based on of the XPS study.

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Keywords
Wet peroxide oxidation; Perovskite-like oxides; Phenol; LaFeO3; LaCuO3
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Perovskite-like catalysts LaBO3 (B = Cu, Fe, Mn, Co, Ni) for wet peroxide oxidation of phenol
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 180, January 2016, Pages 86–93
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
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Price was $35.95
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Price after discount Only $4.95
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