Temperature programmed reduction of silica supported nickel catalysts
Ημερομηνία
1993ISSN
0303-402XSource
Colloid & Polymer ScienceVolume
271Issue
11Pages
1100-1105Google Scholar check
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Εμφάνιση πλήρους εγγραφήςΕπιτομή
Nickel oxide promoted catalysts are prepared by simple precipitation, precipitation from homogeneous solution and impregnation methods and their reduction behavior is monitored with temperature programmed reduction (TPR) technique. The effect of different parameters such as metal loading, method of preparation and heat treatment temperature are also observed on the reducibility of the catalysts. It is observed that reduction temperature increases with the increase of calcination temperature. Results indicate that the interactions between nickel oxide and silica begin with the increase of calcination temperature which leads to the formation of nickel hydrosilicates and are responsible for high temperature reduction peaks. © 1993 Steinkopff-Verlag.
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