Role of Manganese Oxide in Syngas Conversion to Light Olefins

doi:10.1021/acscatal.7b00221

	Role of Manganese Oxide in Syngas Conversion to Light Olefins
	Zhu, Yifeng 1; Pan, Xiulian 1; Jiao, Feng 1,2; Li, Jian 1,2; Yang, Junhao 1,2; Ding, Minzheng 1; Han, Yong3,4 ; Liu, Zhi3,4 ; Bao, Xinhe1
	2017-04
发表期刊	ACS CATALYSIS (IF:11.3[JCR-2023],12.6[5-Year])
ISSN	2155-5435
卷号	7 期号:4 页码:2800-2804
发表状态	已发表
DOI	10.1021/acscatal.7b00221
摘要	The key of syngas (a mixture of CO and H-2) chemistry lies in controlled dissociative activation of CO and C-C coupling. We demonstrate here that a bifunctional catalyst of partially reducible manganese oxide in combination with SAPO-34 catalyzes the selective formation of light olefins, which validates the generality of the OX-ZEO (oxide-zeolite) concept for syngas conversion. Results from in situ ambient pressure X-ray photoelectron spectroscopy, infrared spectroscopy, and temperature-programmed surface reactions reveal the critical role of oxygen vacancies on the oxide surface, where CO dissociates and is converted into surface carbonate and carbon species. They are converted to CO2 and CHx in the presence of H-2. The limited C-C coupling and hydrogenation activities of MnO enable the reaction selectivity to be controlled by the confined pores of SAPO-34. Thus, a selectivity of light olefins up to 80% is achieved, far beyond the limitation of Anderson-Shultz-Flory distribution. These findings open up possibilities to explore other active metal oxides for more efficient syngas conversion.
关键词	syngas chemistry light olefins manganese oxides CO dissociation bifunctional catalysts heterogeneous catalysis oxide-zeolite
收录类别	SCI ; EI
语种	英语
资助项目	China Postdoctoral Science Foundation[2015M581368] ; China Postdoctoral Science Foundation[2016T90232]
WOS研究方向	Chemistry
WOS类目	Chemistry, Physical
WOS记录号	WOS:000398986700067
出版者	AMER CHEMICAL SOC
EI入藏号	20172203708260
EI主题词	Carbon ; Carbon dioxide ; Catalysis ; Catalysts ; Dissociation ; Infrared spectroscopy ; Manganese ; Metals ; Olefins ; Oxides ; Oxygen vacancies ; Surface reactions ; Synthesis gas ; X ray photoelectron spectroscopy ; Zeolites
EI分类号	Manganese and Alloys:543.2 ; Chemical Reactions:802.2 ; Chemical Products Generally:804 ; Crystalline Solids:933.1
WOS关键词	WATER-GAS SHIFT ; FISCHER-TROPSCH SYNTHESIS ; SELECTIVE CONVERSION ; ELECTRONIC-STRUCTURE ; DEPTH-PROFILE ; CATALYSTS ; RANGE ; OXIDATION ; CERIA ; XPS
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/1433
专题	物质科学与技术学院大科学中心_PI研究组_刘志组物质科学与技术学院_特聘教授组_包信和组
通讯作者	Pan, Xiulian; Bao, Xinhe
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Zhongshan Rd 457, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, State Key Lab Funct Mat Informat, Shanghai 200050, Peoples R China 4.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 200031, Peoples R China
推荐引用方式 GB/T 7714	Zhu, Yifeng,Pan, Xiulian,Jiao, Feng,et al. Role of Manganese Oxide in Syngas Conversion to Light Olefins[J]. ACS CATALYSIS,2017,7(4):2800-2804.
APA	Zhu, Yifeng.,Pan, Xiulian.,Jiao, Feng.,Li, Jian.,Yang, Junhao.,...&Bao, Xinhe.(2017).Role of Manganese Oxide in Syngas Conversion to Light Olefins.ACS CATALYSIS,7(4),2800-2804.
MLA	Zhu, Yifeng,et al."Role of Manganese Oxide in Syngas Conversion to Light Olefins".ACS CATALYSIS 7.4(2017):2800-2804.