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Effect of La2O3 doping on syntheses of C-1-C-18 mixed linear alpha-alcohols from syngas over the Co/AC catalysts
Jiao, Guiping1,3; Ding, Yunjie1,2; Zhu, Hejun1; Li, Xianming1,3; Li, Jingwei1,3; Lin, Ronghe1,3; Dong, Wenda1,3; Gong, Leifeng1,3; Pei, Yanpeng1,3; Lu, Yuan1
关键词Mixed Linear Alpha-alcohols La Doping Fischer-tropsch Synthesis Co-xla/ac Catalysts Co2c Species
刊名APPLIED CATALYSIS A-GENERAL
2009-07-31
DOI10.1016/j.apcata.2009.05.040
364期:1-2页:137-142
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Life Sciences & Biomedicine
类目[WOS]Chemistry, Physical ; Environmental Sciences
研究领域[WOS]Chemistry ; Environmental Sciences & Ecology
关键词[WOS]SUPPORTED COBALT CATALYSTS ; FISCHER-TROPSCH CATALYSTS ; CARBON-MONOXIDE ; HYDROGENATION ; LANTHANUM ; DIOXIDE ; OXIDE
英文摘要Activated carbon-supported La-promoted Co catalysts with different La dopings (15Co-xLa/AC) were prepared by the co-impregnation method and investigated by means of CO hydrogenation, XRD, TPR-MS, CO adsorption and TPSR-MS techniques. The results showed that mixed linear alpha-alcohols (C-1-C-18) can be directly synthesized from syngas over the La-doped 15Co/AC catalysts under mild conditions and that the selectivity towards alcohols was improved by doping La into the 15Co/AC catalysts. It was found that the reducibility of the 15Co-xLa/AC catalyst decreased and the Co dispersion improved due to the strong interaction between Co and La2O3 species. La2O3 can promote the formation of cobalt carbides (Co2C) which are postulated to play an important role in the syntheses of the mixed linear alpha-alcohols. On the other hand, high Co dispersion and an appropriate ratio of Co2+/Co-0 can enhance the activity of CO hydrogenation. (C) 2009 Elsevier B.V. All rights reserved.
语种英语
WOS记录号WOS:000268512500019
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被引频次:74[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/321008/141279
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
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Jiao, Guiping,Ding, Yunjie,Zhu, Hejun,et al. Effect of La2O3 doping on syntheses of C-1-C-18 mixed linear alpha-alcohols from syngas over the Co/AC catalysts[J]. APPLIED CATALYSIS A-GENERAL,2009,364(1-2):137-142.
APA Jiao, Guiping.,Ding, Yunjie.,Zhu, Hejun.,Li, Xianming.,Li, Jingwei.,...&Lu, Yuan.(2009).Effect of La2O3 doping on syntheses of C-1-C-18 mixed linear alpha-alcohols from syngas over the Co/AC catalysts.APPLIED CATALYSIS A-GENERAL,364(1-2),137-142.
MLA Jiao, Guiping,et al."Effect of La2O3 doping on syntheses of C-1-C-18 mixed linear alpha-alcohols from syngas over the Co/AC catalysts".APPLIED CATALYSIS A-GENERAL 364.1-2(2009):137-142.
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