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Cooperative catalysis of palladium nanoparticles and cobalt oxide support for formylation of aryl iodides under syngas atmosphere

Paper ID Volume ID Publish Year Pages File Format Full-Text
40161 45845 2014 7 PDF Available
Title
Cooperative catalysis of palladium nanoparticles and cobalt oxide support for formylation of aryl iodides under syngas atmosphere
Abstract

•Palladium nanoparticles and cobalt species exercised a cooperative catalysis.•Iodoarenes were effectively formylated under CO/H2 atmosphere.•Both palladium oxide and cobalt oxide were reduced by H2 treatment.•The catalyst could be recycled at least 7 times without loss of activities.

Formylation of aryl iodides proceeded effectively in the presence of palladium nanoparticles on cobalt oxide under a syngas atmosphere to afford aldehydes up to 91% yield. A cooperative effect between palladium nanoparticles and cobalt species derived from the support was integral to efficient transformation. Both palladium and cobalt were revealed to exist as zero valent metals after H2 treatment from X-ray absorption near edge structure and X-ray diffraction spectra. The catalyst could be reused at least 7 times without significant loss of activity.

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Keywords
Heterogeneous catalyst; Palladium nanoparticles; Cobalt oxide; Cooperative catalysis; Formylation
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Cooperative catalysis of palladium nanoparticles and cobalt oxide support for formylation of aryl iodides under syngas atmosphere
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 469, 17 January 2014, Pages 146–152
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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