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Effects of Cu/Fe ratio on structure and performance of attapulgite supported CuFeCo-based catalyst for mixed alcohols synthesis from syngas
Guo, Haijun1,2; Zhang, Hairong1,2; Peng, Fen1,2; Yang, Huijuan1,2,3; Xiong, Lian1,2; Wang, Can1,2; Huang, Chao1,2; Chen, Xinde1,2; Ma, Longlong1
2015-08-25
Source PublicationAPPLIED CATALYSIS A-GENERAL
Volume503Pages:51-61
AbstractThe effects of Cu/Fe ratio on structure of attapulgite (ATP) supported CuFeCo-based catalysts were detected by N-2 physical adsorption/desorption, XRD, H-2-TPR, FE-SEM, TEM,.XPS etc.. And the effect on the catalytic performance for mixed alcohols synthesis (MAS) from syngas was evaluated with a continuous flow fixed bed reactor as well. The characterization results indicated that the increase of iron addition resulted in the increase of BET surface area and facilitated the dispersion of oxide particles. Increasing iron concentration also facilitated the separation of Cu-Fe alloy phase, the incorporation of Cu and Fe species and the formation and dispersion of CuFe2O4 spinel phase, thus promoting its reduction to generate Cu-FeCx dual active site for C2+ alcohol formation. However, more Fe2O3 was formed and dispersed on/in the catalyst with higher iron concentration and was reduced to generate sole FeCx and Fe3O4 phase during reaction. The coverage of CuFe2O4 phase by Fe2O3 inhibited the mixed alcohols formation. In the MAS reaction, the Cu5.2Fe4.8 catalyst showed the highest selectivity and yield of total alcohol due to the well dispersion of high concentration of Cu-FeCx dual active site, which may be attributed to the optimum Cu-Fe interaction and the intimate contact of Cu-Fe species. In view of the utilization of low-cost nonmetallic mineral resource and the production of clean liquid fuel, the attapulgite clay has a great promise to be used as catalyst support in energy field. (C) 2015 Elsevier B.V. All rights reserved.
SubtypeArticle
KeywordMixed Alcohols Synthesis Attapulgite Syngas Cu-fe-co Based Catalyst
WOS HeadingsScience & Technology ; Physical Sciences ; Life Sciences & Biomedicine
DOI10.1016/j.apcata.2015.07.008
WOS Subject ExtendedChemistry ; Environmental Sciences & Ecology
WOS KeywordBIMODAL PORE CATALYST ; IRON-BASED CATALYSTS ; CO BASED CATALYSTS ; BIMETALLIC NANOPARTICLES ; HIGH SELECTIVITY ; SYNTHESIS GAS ; COPPER ; OXIDES ; HYDROGENATION ; SPECTROSCOPY
Indexed BySCI
Language英语
WOS SubjectChemistry, Physical ; Environmental Sciences
WOS IDWOS:000361162300007
Citation statistics
Cited Times:27[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/10864
Collection中国科学院广州能源研究所
集成技术研发中心
Affiliation1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
2.Chinese Acad Sci, Guangzhou Inst Energy Convers, R&D Ctr Xuyi Attapulgite Appl Technol, Xuyi 211700, Peoples R China
3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Guo, Haijun,Zhang, Hairong,Peng, Fen,et al. Effects of Cu/Fe ratio on structure and performance of attapulgite supported CuFeCo-based catalyst for mixed alcohols synthesis from syngas[J]. APPLIED CATALYSIS A-GENERAL,2015,503:51-61.
APA Guo, Haijun.,Zhang, Hairong.,Peng, Fen.,Yang, Huijuan.,Xiong, Lian.,...&Ma, Longlong.(2015).Effects of Cu/Fe ratio on structure and performance of attapulgite supported CuFeCo-based catalyst for mixed alcohols synthesis from syngas.APPLIED CATALYSIS A-GENERAL,503,51-61.
MLA Guo, Haijun,et al."Effects of Cu/Fe ratio on structure and performance of attapulgite supported CuFeCo-based catalyst for mixed alcohols synthesis from syngas".APPLIED CATALYSIS A-GENERAL 503(2015):51-61.
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