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摘要
The acrylonitrile adsorption over Pd/SiO2 and PdSn/SiO2 catalysts was prepared by "Solvated Metal Atom Dispersion" (SMAD) and analyzed by DRIFTS FTIR are studied.
The catalysts were used in pellets and treated with dry N-2(g) flow inside a flask in contact with the acrylonitrile vapours for 6 h.
A change in the adsorption capacity of acrylonitrile with the increase in Sn content in the catalysts by following the Cequivalent toN IR band was studied.
The decrease in the acrylonitrile adsorption produced a decrease in the hydrogenation rates of acrylonitrile and an increase in the hydrogenation selectivity to obtain allylamine, mainly due to a greater interaction of Cequivalent toN with Sn.
- 出版日期2004-3
