Cinnamaldehyde hydrogenation over Au/ZrO2 and Au/ZrO2-SiO2 catalysts. Support effect and preparation method
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Gold catalysts supported on ZrO2 and ZrO2-SiO2 were prepared by incipient impregnation and deposition-precipitation with urea (DPU) with 1 % of nominal gold loading. The solids were characterized by X-ray diffraction analysis (XRD), N2-physisorption and temperature programmed reduction (TPR). Catalytic activities were investigated in cinnamaldehyde hydrogenation. The selectivity towards the desired product was influenced by the crystalline or amorphous phase support and method of gold deposition.
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