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Catalytic Properties for Mixed Alcohols Synthesis and Structure of Co-K-Mo/gamma-Al2O3 Catalysts
其他题名Co-K-Mo/r-Al2O3 催化剂的合成低碳醇性能及其结构研
Bian, GZ; Ma, YS; Fu, YL; Xie, YN; Hu, TD; 谢亚宁,胡天斗
1996
发表期刊ACTA PHYSICO-CHIMICA SINICA
卷号12期号:5页码:406-412
通讯作者[Bian Guozhu ; Ma Yunsheng ; Fu Yilu] Univ Sci & Technol China, Dept Chem Phys, Hefei 230026, Peoples R China ; [Xie Yaning ; Hu Tiandou] Acad Sinica, Inst High Energy Phys, Beijing 100039, Peoples R China
文章类型Article
摘要A series of oxidic Co-K-Mo/gamma-Al2O3 catalyst samples, prepared by impregnating oxidic K-MoO3/gamma-Al2O3 samples with aqueous solution of calculated Co (NO3)(2) and then calcination in air at temperatures of 350 degrees C, 500 degrees C, 650 degrees C and 800 degrees C, respectively, were sulfided and then investigated for the; thesis of mixed alcohols from CO and GHSV=4800(h-1). The results hydrogenation at conditions of p=5.0MPa, T=350 degrees C demonstrate that the addition of cobalt promoter is favourable to from higher alcohols d the samples calcined at 500-600 degrees C after impregnating Co2+ possess superior properties for the mixed alcohols synthesis. The structures of Co d Mo species on the oxidic sulfided samples were determined by XRD, LRS and EXAFS. For oxidic sample calcined at 350 V, cobalt exists as Co3O4 species and covers on the surface of K-M0-O species, the structures of K-Mo-O species are same as that in K-MoO3/gamma-Al2O3 sample. After sulfidation, cobalt exists as sulfide crystallites with octahedral coordinated Co, d Mo as MoS2 crystallites, For oxidic samples calcined at 500-650 degrees C. Co component interacts with the K-Mo-O species and destroys the long-range order of the K-Mo-O species gradually After sulfidation, Co tends to be existed as a sulfide with tetrahedral coordinated Co and Mo still as MoS2 crystallites. For oxidic sample calcined at 800 degrees C, Co component exists mainly as Co(Al2O4) species, most of which can not be sulfided during sulfidation,
关键词Co-K-Mo/gamma-Al2O3 catalyst Calcination temperature Mixed alcohols synthesis Structure
学科领域Chemistry
研究领域[WOS]Chemistry ; Chemistry
DOI10.3866/PKU.WHXB19960505
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语种英语
研究领域[WOS]Chemistry ; Chemistry
WOS类目Chemistry, Physical
WOS记录号WOS:000207599800005
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被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/237345
专题多学科研究中心
作者单位中国科学院高能物理研究所
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GB/T 7714
Bian, GZ,Ma, YS,Fu, YL,et al. Catalytic Properties for Mixed Alcohols Synthesis and Structure of Co-K-Mo/gamma-Al2O3 Catalysts[J]. ACTA PHYSICO-CHIMICA SINICA,1996,12(5):406-412.
APA Bian, GZ,Ma, YS,Fu, YL,Xie, YN,Hu, TD,&谢亚宁,胡天斗.(1996).Catalytic Properties for Mixed Alcohols Synthesis and Structure of Co-K-Mo/gamma-Al2O3 Catalysts.ACTA PHYSICO-CHIMICA SINICA,12(5),406-412.
MLA Bian, GZ,et al."Catalytic Properties for Mixed Alcohols Synthesis and Structure of Co-K-Mo/gamma-Al2O3 Catalysts".ACTA PHYSICO-CHIMICA SINICA 12.5(1996):406-412.
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