Tuning the interfaces of Co-Co2C with sodium and its relation to the higher alcohol production in Fischer-Tropsch synthesis

doi:10.1007/s10853-020-04612-8

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	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
刊名	JOURNAL OF MATERIALS SCIENCE
	2020
卷号	55 期号:21 页码:9037-9047
关键词	RAY-ABSORPTION SPECTROSCOPY CATALYSTS SYNGAS CONVERSION COBALT OLEFINS NANOPARTICLES SELECTIVITY
ISSN号	0022-2461
DOI	10.1007/s10853-020-04612-8
文献子类	期刊论文
英文摘要	Catalytic 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.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/33229]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Chinese Acad Sci, Shanghai Adv Res Inst, Zhangjiang Natl Lab, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China 2.Kyoto Univ, Grad Sch Sci, Div Chem, Sakyo Ku, Kitashirakawa Oiwakecho, Kyoto 6068502, Japan 3.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China 4.Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China 5.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
推荐引用方式 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.