Pd-based bimetallic catalysts prepared by replacement reactions |
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| Authors: | Songrui Wang Wei Lin Yuexiang Zhu Youchang Xie John R McCormick Wei Huang Jingguang G Chen |
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| Affiliation: | (1) Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China;(2) Department of Chemical Engineering, Center for Catalytic Science and Technology (CCST), University of Delaware, Newark, DE 19716, USA |
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| Abstract: | Several Pd-based bimetallic catalysts, Pd/Co, Pd/Ni and Pd/Cu, were synthesized by replacement reactions. The catalysts were
characterized by XRD and CO chemisorption and their catalytic properties were evaluated using cyclohexene self-hydrogenation.
The results suggest that the high catalytic activity of Pd/Ni is most likely due to the monolayer-dispersion of Pd on the
Ni surface. The results also suggest that Pd is monolayer-dispersed on the Co surface in Pd/Co, whereas Pd forms surface alloy
or solid solution with Cu in Pd/Cu. |
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| Keywords: | Pd/Co Pd/Ni Pd/Cu bimetallic catalysts cyclohexene self-hydrogenation monolayer-dispersed catalysts CO chemisorption |
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