| PROPERTIES OF POLYMER SUPPORTED Ni-Cu BIMETALLIC CATALYSTS PREPARED BY SOLVATED METAL ATOM IMPREGNATION |
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| 作者姓名： | 吴世华 朱常英 黄文强 |
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| 作者单位： | Department of Chemistry，Nankai University，State Key Laboratory of Functional Polymer Materials for Adsorption and Separation，Nankai University，Tianjin 300071，Department of Chemistry，Nankai University，State Key Laboratory of Functional Polymer Materials for Adsorption and Separation，Nankai University，Tianjin 300071，Department of Chemistry，Nankai University，State Key Laboratory of Functional Polymer Materials for Adsorption and Separation，Nankai University，Tianjin 300071 |
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| 摘 要： | D-72 resin supported nickel-copper catalysts prepared by solvated metal atom impreg-nation (SMAI) were studied by magnetic measurements and X-ray photoelectron spectro-scopy (XPS). The Ni particles on the catalysts are very highly dispersed and displaysuperparamagnetic behaviour. Ni-Cu alloy clusters were found to be formed. The sur-face compositions are different from the bulk concentrations. In contrast with the surfaceenrichment in copper generally observed on conventional Ni-Cu catalysts, the surfaces ofthese catalysts are enriched in nickel. The nickel is in both zero and valent states, whilecopper is mainly in metallic state. Catalytic data show that the formation of Ni-Cu alloyclusters has a profound effect on the catalytic activities of the catalysts in the hydrogena-tion of furfural. The activity of the Ni:Cu ratio of one bimetallic catalysts is much higherthan that of the Ni or Cu monometallic catalyst.
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| 收稿时间： | 1995-03-07 |
PROPERTIES OF POLYMER SUPPORTED Ni-Cu BIMETALLIC CATALYSTS PREPARED BY SOLVATED METAL ATOM IMPREGNATION |
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| WU Shihua,ZHU Changying,HUANG Wenqiang.PROPERTIES OF POLYMER SUPPORTED Ni-Cu BIMETALLIC CATALYSTS PREPARED BY SOLVATED METAL ATOM IMPREGNATION[J].Chinese Journal of Polymer Science,1996,0(3):217-224. |
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| Authors: | WU Shihua ZHU Changying HUANG Wenqiang |
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| Institution: | Department of Chemistry; Nankai University; State Key Laboratory of Functional Polymer Materials for Adsorption and Separation; Tianjin 300071 |
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| Abstract: | D-72 resin supported nickel-copper catalysts prepared by solvated metal atom impreg-nation (SMAI) were studied by magnetic measurements and X-ray photoelectron spectro-scopy (XPS). The Ni particles on the catalysts are very highly dispersed and displaysuperparamagnetic behaviour. Ni-Cu alloy clusters were found to be formed. The sur-face compositions are different from the bulk concentrations. In contrast with the surfaceenrichment in copper generally observed on conventional Ni-Cu catalysts, the surfaces ofthese catalysts are enriched in nickel. The nickel is in both zero and valent states, whilecopper is mainly in metallic state. Catalytic data show that the formation of Ni-Cu alloyclusters has a profound effect on the catalytic activities of the catalysts in the hydrogena-tion of furfural. The activity of the Ni:Cu ratio of one bimetallic catalysts is much higherthan that of the Ni or Cu monometallic catalyst. |
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| Keywords: | Polymer support Ni-Cu catalyst Solvated metal atom impregnation |
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