Palladium nanoclusters immobilized on defective nanodiamond-graphene core-shell supports for semihydrogenation of phenylacetylene |
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| Authors: | Fei Huang Zhimin Jia Jiangyong Diao Hua Yuan Dangsheng Su Hongyang Liu |
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| Affiliation: | Shenyang National Laboratory for Materials Science;School of Materials Science and Engineering;College of Chemistry |
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| Abstract: | We report a nanocarbon material with nanodiamond(ND) core and graphene shell(ND@G) as a support for Pd nanocatalysts. The designed catalyst performed good selectivity of styrene(85.2%) at full conversion of phenylacetylene and superior stability under mild conditions. Supported Pd catalysts are characterized by means of high resolution transmission electron microscopy(HRTEM), Raman, X-ray diffraction(XRD), X-ray photoelectron spectroscopy(XPS) and H_2 temperature-programmed reduction(H_2-TPR).The results clearly show that formation of the strong metal-support interaction(SMSI) between Pd nanoclusters and the defective graphene shell helpfully modifies the selectivity and stability of the Pd-based catalysts. |
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| Keywords: | Selective hydrogenation Palladium nanoclusters Nanocarbon support Liquid-phase hydrogenation |
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