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Reaction performance and characterization of Co/Al2O3 Fischer-Tropsch catalysts promoted with Pt, Pd and Ru
Xu, DY; Li, WZ; Duan, HM; Ge, QJ; Xu, HY
关键词Fischer-tropsch Synthesis Cobalt Alumina Noble Metal Hydrogen Spillover
刊名CATALYSIS LETTERS
2005-08-01
DOI10.1007/s10562-005-5861-7
102期:3-4页:229-235
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Physical
研究领域[WOS]Chemistry
关键词[WOS]COBALT-ALUMINA CATALYSTS ; SUPPORTED COBALT ; CO HYDROGENATION ; CARBON-MONOXIDE ; METAL-CATALYSTS ; PLATINUM ; RHENIUM ; TPR ; REDUCIBILITY ; KINETICS
英文摘要A series of noble metal (Pt, Ru or Pd) promoted Co/Al2O3 catalysts were prepared by sequential impregnation method. The catalysts were characterized by XRD, TPR, H-2-TPD and TPSR techniques, and their catalytic performance in Fischer-Tropsch synthesis was investigated in a fixed-bed reactor. The results of activity measurements show that the addition of small amounts of noble metal greatly improved the activity of the Co/Al2O3 catalyst. TPR experimental results demonstrate that hydrogen spillover from the noble metal to cobalt oxide clusters facilitated the reduction of cobalt oxide and, thus significantly increased the reducibility of Co/Al2O3 catalyst. The presence of noble metal increased the amount of chemisorbed hydrogen and weakened the bond strength of Co-H. TPSR results indicate that CO was adsorbed in a more reactive state on the promoted catalysts.
语种英语
WOS记录号WOS:000230515600021
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被引频次:80[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/139734
专题中国科学院大连化学物理研究所
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, Nat Gas Utilizat & Appl Catalysis Lab, Dalian 116023, Peoples R China
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GB/T 7714
Xu, DY,Li, WZ,Duan, HM,et al. Reaction performance and characterization of Co/Al2O3 Fischer-Tropsch catalysts promoted with Pt, Pd and Ru[J]. CATALYSIS LETTERS,2005,102(3-4):229-235.
APA Xu, DY,Li, WZ,Duan, HM,Ge, QJ,&Xu, HY.(2005).Reaction performance and characterization of Co/Al2O3 Fischer-Tropsch catalysts promoted with Pt, Pd and Ru.CATALYSIS LETTERS,102(3-4),229-235.
MLA Xu, DY,et al."Reaction performance and characterization of Co/Al2O3 Fischer-Tropsch catalysts promoted with Pt, Pd and Ru".CATALYSIS LETTERS 102.3-4(2005):229-235.
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