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题名: Highly Ordered Mesoporous Fe2O3-ZrO2 Bimetal Oxides for an Enhanced CO Hydrogenation Activity to Hydrocarbons with Their Structural Stability
作者: Cho, Jae Min1;  Lee, Sae Rom1;  Sun, Jian2;  Tsubaki, Noritatsu3;  Jang, Eun Joo4;  Bae, Jong Wook1
关键词: ordered mesoporous Fe2O3-ZrO2 oxides ;  Fischer-Tropsch synthesis ;  structural promoter of ZrO2 ;  stable ;  chi-Fe5C2 ;  structural stability
刊名: ACS CATALYSIS
发表日期: 2017-09-01
DOI: 10.1021/acscatal.7b01989
卷: 7, 期:9, 页:5955-5964
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
英文摘要: Highly ordered mesoporous Fe2O3-ZrO2 mixed bimetal oxides (FeZr) without any additional chemical promoters were first applied to produce the value-added hydrocarbons by CO hydrogenation through Fischer-Tropsch synthesis (FTS) reaction of syngas. To enhance a catalytic activity and structural stability, an irreducible ZrO2 as a structural promoter was incorporated in the ordered mesoporous Fe2O3 structures with a different Zr/Fe molar ratio from 0 to 1 prepared by using a hard template of KIT-6. When an optimal amount of zirconia (Zr/Fe molar ratio = 0.25) was incorporated in the ordered mesoporous Fe2O3 frameworks, the catalytic activity was significantly improved and almost 10 times higher than the mesoporous monometallic Fe2O3. The highly ordered mesoporous structures were stably preserved even under reductive FTS reaction conditions. The ordered mesoporous FeZr catalysts showed a higher C-5+ selectivity even at a higher CO conversion above 80%. This improved catalytic activity and stability on the optimized FeZr catalyst were mainly attributed to the facile formation of active iron carbide species such as the stable, chi-Fe5C2 with insignificant structural collapses through a formation of strongly interacted iron nanoparticles with the ZrO2 structural promoter with a suppressed inactive coke deposition in the highly ordered FeZr mesopores.
关键词[WOS]: FISCHER-TROPSCH SYNTHESIS ;  COBALT PARTICLE-SIZE ;  MOSSBAUER-SPECTROSCOPY ;  PRODUCT DISTRIBUTION ;  CATALYTIC-PROPERTIES ;  ION BATTERIES ;  IRON CARBIDE ;  CLEAN FUELS ;  CO3O4 ;  REDUCTION
语种: 英语
WOS记录号: WOS:000410005700044
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/149926
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Sungkyunkwan Univ SKKU, Sch Chem Engn, 2066 Seobu Ro, Suwon 16419, Gyeonggi Do, South Korea
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
3.Toyama Univ, Sch Engn, Dept Appl Chem, Gofuku 3190, Toyama 9308555, Japan
4.Samsung Adv Inst Technol, Mat Res & Dev Ctr, Suwon 449901, Gyeonggi Do, South Korea

Recommended Citation:
Cho, Jae Min,Lee, Sae Rom,Sun, Jian,et al. Highly Ordered Mesoporous Fe2O3-ZrO2 Bimetal Oxides for an Enhanced CO Hydrogenation Activity to Hydrocarbons with Their Structural Stability[J]. ACS CATALYSIS,2017,7(9):5955-5964.
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