Citation: Guo Hua LAI, Ren Xian ZHOU, Xiao Xiang HAN, Xiao Ming ZHENG. Effect of Transition Metals on Selective Hydrogenation of Cinnamaldehyde over Pt/ZrO₂ Catalysts[J]. Chinese Chemical Letters, ;2004, 15(12): 1494-1496. shu

Effect of Transition Metals on Selective Hydrogenation of Cinnamaldehyde over Pt/ZrO₂ Catalysts

1.
Institute of Catalysis, Zhejiang University, Hangzhou 310028;
2.
Zhejiang Medical College, Hangzhou 310053

Received Date: 27 October 2003

The effect of transition metals (Cr, Mn, Fe, Co and Ni) on the hydrogenation of cinnamaldehyde over Pt/ZrO₂ catalysts was studied in ethanol at 343K under 2.0MPa H₂ pressure.PtCo/ZrO₂ and PtFe/ZrO₂ catalysts exhibit high selectivity and activity of hydrogenation for C=O(93.8% at 87.3% conversion and 83.6% at 88.6% conversion, respectively), and PtNi/ZrO₂ exhibits high selectivity of hydrogenation for C=C (64.3% at 70.6% conversion). In the presence of trace H₂O and NaOH, over the PtNi/ZrO₂ (0.4wt%Ni) catalyst the selectivity to hydrocinnamaldehyde reaches 90.6% and the conversion of cirmamaldehyde is 90.5%.
- Hydrogenation,
- cinnamaldehyde(CMA),
- cinnamyl alcohol(CMO),
- phenylpropanol(HCMO),
- hydrocinnamaldehyde(HCMA)
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