Abstract
The purpose of this study is to present the effect of attracting-repelling force on the dispersion and particle size of palladium (Pd) between Pd and γ-Al2O3. The Pd supported on γ-Al2O3 catalyst were prepared by deposition-precipitation method with two different ways. From the CO-Chemisorption results, Pd/γ-Al2O3 (R2-FM) catalyst has the highest Pd dispersion of 43.16%. The results showed that particle size and distribution of Pd influenced by the surface charge state of γ-Al2O3 support, indicating relation of attracting-repelling force between Pd precursor and γ-Al2O3 surface.
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