Noble Metal Promoted CeO2–ZrO2-Supported Ni Catalysts for Liquid-Phase Hydrogenation of Cinnamaldehyde
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Pd or Pt promoted CeO2–ZrO2-supported Ni catalysts exhibited superior catalytic activity to the hitherto known Ni catalysts for liquid-phase hydrogenation of cinnamaldehyde at moderate conditions. Under similar experimental conditions, the unpromoted catalyst was selective for hydrocinnamaldehyde product (C=C hydrogenation) whereas the promoted catalyst yielded 3-phenyl propanol (C=C and C=O hydrogenation product). Enhanced dispersion of Ni was the cause for higher activity of the promoted Ni catalysts.
KeywordsSelective hydrogenation Cinnamaldehyde Supported Ni catalyst Ceria–zirconia Noble metal promoted catalyst
S.B. acknowledges the Council of Scientific and Industrial Research, New Delhi for the award of Senior Research Fellowship.