Effects of Sodium on the Catalytic Performance of CoMn Catalysts for Fischer-Tropsch to Olefin Reactions

doi:10.1021/acscatal.6b03478

	Effects of Sodium on the Catalytic Performance of CoMn Catalysts for Fischer-Tropsch to Olefin Reactions
	Li, Zhengjia 1,2; Zhong, Liangshu2 ; Yu, Fei 2,3; An, Yunlei 2,4; Dai, Yuanyuan 2,3; Yang, Yanzhang 2,3; Lin, Tiejun 2; Li, Shenggang2,5 ; Wang, Hui 2; Gao, Peng 2; Sun, Yuhan2,5 ; He, Mingyuan 1
	2017-05
发表期刊	ACS CATALYSIS (IF:11.3[JCR-2023],12.6[5-Year])
ISSN	2155-5435
卷号	7 期号:5 页码:3622-3631
发表状态	已发表
DOI	10.1021/acscatal.6b03478
摘要	The effects of a sodium (Na) promoter on the catalytic performance of cobalt-manganese (CoMn) catalysts for Fischer-Tropsch to (FTO) For olefin reactions were investigated. the the sample without Na, Co-0 was found to be the active phase for the traditional Co-based Fischer-Tropsch reaction with low CO2 selectivity. The olefin/paraffin (O/P) ratio was found to be low with a C-2-4(=) selectivity of only 15.4 C%. However, with the addition of Na, cobalt carbide (Co2C) quadrangular nanoprisms with the (101) and (020) facets exposed were formed. The Co2C nanoprisms displayed a high C-2-4(=) selectivity (54.2 C%) as well as a low methane selectivity (5.9 C%) under mild reaction conditions. The O/P ratio for C2-4 reached 23.9, and the product distribution deviated greatly from the classical Anderson-Schulz-Flory (ASF) distribution. Co2C nanoprisms were considered to be an effective FTO active phase with strong facet effects. The Na promoter played a key role in the evolution of the FTO catalysts. The addition of Na, which acted as an electronic donor to cobalt, resulted in stronger CO adsorption and enhanced CO dissociation, which also benefited the formation of the Co2C phase, leading to highly stable and active catalysts. The effects of other alkali promoters were also studied, and only the K promoter had an effect similar to that of Na on the CoMn catalysts for promoting the FTO reaction.
关键词	Fischer-Tropsch to olefins cobalt carbide lower olefins syngas nanocatalysis sodium
收录类别	SCI ; EI
语种	英语
资助项目	Chinese Academy of Sciences[QYZDB-SSW-SLH035]
WOS研究方向	Chemistry
WOS类目	Chemistry, Physical
WOS记录号	WOS:000401054300065
出版者	AMER CHEMICAL SOC
EI入藏号	20172503808928
EI主题词	Binary alloys ; Carbides ; Catalysts ; Cobalt ; Manganese alloys ; Nanostructures ; Olefins ; Sodium
EI分类号	Manganese and Alloys:543.2 ; Alkali Metals:549.1 ; Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals:549.3 ; Nanotechnology:761 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Solid State Physics:933
WOS关键词	SUPPORTED IRON CATALYSTS ; SYNTHESIS GAS ; COBALT CARBIDE ; CARBON NANOTUBES ; MANGANESE OXIDE ; LIGHT OLEFINS ; SYNGAS ; ALKALI ; HYDROGENATION ; SELECTIVITY
原始文献类型	Article
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/1390
专题	物质科学与技术学院_特聘教授组_钟良枢组物质科学与技术学院_特聘教授组_孙予罕组物质科学与技术学院_特聘教授组_李圣刚组
通讯作者	Zhong, Liangshu; Sun, Yuhan
作者单位	1.East China Normal Univ, Sch Chem & Mol Engn, Shanghai 200062, Peoples R China 2.Chinese Acad Sci, CAS Key Lab Low Carbon Convers Sci & Engn, Shanghai Adv Res Inst, Shanghai 201210, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Shanghai Univ, Sch Environm & Chem Engn, Shanghai 200444, Peoples R China 5.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 200031, Peoples R China
通讯作者单位	物质科学与技术学院
推荐引用方式 GB/T 7714	Li, Zhengjia,Zhong, Liangshu,Yu, Fei,et al. Effects of Sodium on the Catalytic Performance of CoMn Catalysts for Fischer-Tropsch to Olefin Reactions[J]. ACS CATALYSIS,2017,7(5):3622-3631.
APA	Li, Zhengjia.,Zhong, Liangshu.,Yu, Fei.,An, Yunlei.,Dai, Yuanyuan.,...&He, Mingyuan.(2017).Effects of Sodium on the Catalytic Performance of CoMn Catalysts for Fischer-Tropsch to Olefin Reactions.ACS CATALYSIS,7(5),3622-3631.
MLA	Li, Zhengjia,et al."Effects of Sodium on the Catalytic Performance of CoMn Catalysts for Fischer-Tropsch to Olefin Reactions".ACS CATALYSIS 7.5(2017):3622-3631.