Citation: Nicola Scotti, Elisabetta Finocchio, Claudio Evangelisti, Marcello Marelli, Rinaldo Psaro, Nicoletta Ravasio, Federica Zaccheria. Some insight on the structure/activity relationship of metal nanoparticles in Cu/SiO₂ catalysts[J]. Chinese Journal of Catalysis, ;2019, 40(11): 1788-1794. doi: S1872-2067(19)63392-9 shu

Some insight on the structure/activity relationship of metal nanoparticles in Cu/SiO₂ catalysts

a The Institute of Molecular Science and Technologies (ISTM), CNR Research Centres, LabCat, via C. Golgi 19, 20133 Milano, Italy;
b Dip. Ingegneria Civile, Chimica e Ambientale (DICCA), Scuola Politecnica, Università di Genova, Via all'Opera Pia 15, 16145 Genova, Italy

Received Date: 28 March 2019
Revised Date: 8 May 2019

The activity of two Cu/SiO₂ catalysts prepared by the chemisorption hydrolysis technique has been tested in the hydrogenation reaction of 3-methyl-cyclohexanone. Both catalysts were found to be very active at 60℃ and 1 atm of H². Characterization of the materials by FT-IR of adsorbed CO and TEM put in light the presence of well formed Cu cristallites. By assuming a cuboctahedral model we could show that the hydrogenation activity is linked to high coordination sites on the metal particle. A comparison is also reported with a sample prepared by ammonia evaporation that was found to be inactive in the hydrogenation reaction under the same experimental conditions.
- Cu catalysts,
- Metal particle morphology,
- Lewis acid sites,
- Hydrogenation,
- Bifunctional catalysts
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沈阳化工大学材料科学与工程学院沈阳 110142

Some insight on the structure/activity relationship of metal nanoparticles in Cu/SiO2 catalysts

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通讯作者: 陈斌, bchen63@163.com

Some insight on the structure/activity relationship of metal nanoparticles in Cu/SiO₂ catalysts