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Tuning the interfaces of Co-Co2C with sodium and its relation to the higher alcohol production in Fischer-Tropsch synthesis
Liu, Y; He, S; Yang, RO; Sun, FF; Yang, YQ; Mei, BB; Kang, JC; Wu, DS; Jiang, Z
2020
Source PublicationJOURNAL OF MATERIALS SCIENCE
ISSN0022-2461
Volume55Issue:21Pages:9037-9047
Subtype期刊论文
AbstractCatalytic conversion of the syngas into higher alcohols (HAs) via Fischer-Tropsch (F-T) synthesis is essential due to the widespread applications of HAs. The interfaces of cobalt and cobalt carbide (Co2C) are found to efficiently promote the HAs formation. However, the study on the links between structural evolution of Co-Co2C interfaces and HAs production is still lacking. In this work, Co3O4 with different contents of sodium (Na) as promoters was synthesized and high-pressure F-T reaction (3 MPa) was carried out in the aim of accelerating the Co2C formation and tuning the interfaces of Co-Co2C. XRD, (HR)TEM, ICP, XPS and XAFS were conducted to study the relationship between the variations of Co-Co2C interfaces and HAs production. With the increasing Na contents, the ratios of Co to Co2C decreased as revealed by XAFS and the selectivity of HAs was decreasing. The fitting results from EXAFS revealed that the ratio of Co to Co2C is in direct proportion to the selectivity of HAs. This work provides a theoretical guidance to tune the interfaces of Co-Co2C and improve the HAs production in F-T reaction.
KeywordRAY-ABSORPTION SPECTROSCOPY CATALYSTS SYNGAS CONVERSION COBALT OLEFINS NANOPARTICLES SELECTIVITY
DOI10.1007/s10853-020-04612-8
Indexed BySCI ; EI
Language英语
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/33229
Collection中科院上海应用物理研究所2011-2020年
Affiliation1.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
2.Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Shanghai Adv Res Inst, Zhangjiang Natl Lab, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China
4.Xiamen Univ, State Key Lab Phys Chem Solid Surfaces, Collaborat Innovat Ctr Chem Energy Mat,Coll Chem, Natl Engn Lab Green Chem Product Alcohols Ethers, Xiamen 361005, Peoples R China
5.Kyoto Univ, Grad Sch Sci, Div Chem, Sakyo Ku, Kitashirakawa Oiwakecho, Kyoto 6068502, Japan
Recommended Citation
GB/T 7714
Liu, Y,He, S,Yang, RO,et al. Tuning the interfaces of Co-Co2C with sodium and its relation to the higher alcohol production in Fischer-Tropsch synthesis[J]. JOURNAL OF MATERIALS SCIENCE,2020,55(21):9037-9047.
APA Liu, Y.,He, S.,Yang, RO.,Sun, FF.,Yang, YQ.,...&Jiang, Z.(2020).Tuning the interfaces of Co-Co2C with sodium and its relation to the higher alcohol production in Fischer-Tropsch synthesis.JOURNAL OF MATERIALS SCIENCE,55(21),9037-9047.
MLA Liu, Y,et al."Tuning the interfaces of Co-Co2C with sodium and its relation to the higher alcohol production in Fischer-Tropsch synthesis".JOURNAL OF MATERIALS SCIENCE 55.21(2020):9037-9047.
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