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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
发表期刊APPLIED CATALYSIS A-GENERAL
卷号503页码:51-61
摘要The 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.
文章类型Article
关键词Mixed Alcohols Synthesis Attapulgite Syngas Cu-fe-co Based Catalyst
WOS标题词Science & Technology ; Physical Sciences ; Life Sciences & Biomedicine
DOI10.1016/j.apcata.2015.07.008
研究领域[WOS]Chemistry ; Environmental Sciences & Ecology
关键词[WOS]BIMODAL PORE CATALYST ; IRON-BASED CATALYSTS ; CO BASED CATALYSTS ; BIMETALLIC NANOPARTICLES ; HIGH SELECTIVITY ; SYNTHESIS GAS ; COPPER ; OXIDES ; HYDROGENATION ; SPECTROSCOPY
收录类别SCI
语种英语
WOS类目Chemistry, Physical ; Environmental Sciences
WOS记录号WOS:000361162300007
引用统计
被引频次:22[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/10864
专题中国科学院广州能源研究所
集成技术研发中心
作者单位1.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
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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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