期刊
CATALYSIS SCIENCE & TECHNOLOGY
卷 12, 期 16, 页码 4988-4992出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2cy00821a
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资金
- US Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences, Biosciences [DE-SC0012704]
- Office of Science of the U.S. DOE [DE-AC0205CH11231]
Monometallic and bimetallic catalysts consisting of Rh/MCM-41 and RhM3/MCM-41 (M = Fe, Co, Ni, Cu, or Zn) were synthesized and tested for vapor-phase ethylene hydroformylation reaction. Co showed a significant promotion effect on the selectivity of hydroformylation to C-3 oxygenates, followed by Fe and Cu, while Ni and Zn had a negative effect. Density functional theory (DFT) calculations revealed that the addition of a secondary metal can create a new type of site, allowing for selective tuning of the binding energies of reaction intermediates, thereby leading to different catalytic performances.
Monometallic Rh/MCM-41 and bimetallic RhM3/MCM-41 (M = Fe, Co, Ni, Cu, or Zn) catalysts are synthesized and tested for vapor-phase ethylene hydroformylation reaction. Co is found to exhibit a significant promotion effect on the selectivity of hydroformylation to C-3 oxygenates, followed by Fe and Cu, with Ni and Zn showing a negative effect. DFT calculations reveal that the addition of a secondary metal can provide a new type of site, being able to selectively tune the binding energies of reaction intermediates, and thus lead to different catalytic performances.
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