Interfacial Enhancement by gamma-Al2O3 of Electrochemical Oxidative Dehydrogenation of Ethane to Ethylene in Solid Oxide Electrolysis Cells

doi:10.1002/anie.201908388

	Interfacial Enhancement by gamma-Al2O3 of Electrochemical Oxidative Dehydrogenation of Ethane to Ethylene in Solid Oxide Electrolysis Cells
	Song, Yuefeng 1,2; Lin, Le1,3 ; Feng, Weicheng 1,2; Zhang, Xiaomin 1; Dong, Qiao 2,4; Li, Xiaobao 2,4; Lv, Houfu 1,2; Liu, Qingxue 1,2; Yang, Fan 1; Liu, Zhi3,4 ; Wang, Guoxiong 1; Bao, Xinhe 1
	2019-09-26
发表期刊	ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (IF:16.1[JCR-2023],16.2[5-Year])
ISSN	1433-7851
发表状态	已发表
DOI	10.1002/anie.201908388
摘要	Oxidative dehydrogenation of ethane (ODE) is limited by the facile deep oxidation and potential safety hazards. Now, electrochemical ODE reaction is incorporated into the anode of a solid oxide electrolysis cell, utilizing the oxygen species generated at anode to catalytically convert ethane. By infiltrating gamma-Al2O3 onto the surface of La0.6Sr0.4Co0.2Fe0.8O3-delta-Sm0.2Ce0.8O2-delta (LSCF-SDC) anode, the ethylene selectivity reaches as high as 92.5 %, while the highest ethane conversion is up to 29.1 % at 600 degrees C with optimized current and ethane flow rate. Density functional theory calculations and in situ X-ray photoelectron spectroscopy characterizations reveal that the Al2O3/LSCF interfaces effectively reduce the amount of adsorbed oxygen species, leading to improved ethylene selectivity and stability, and that the formation of Al-O-Fe alters the electronic structure of interfacial Fe center with increased density of state around Fermi level and downshift of the empty band, which enhances ethane adsorption and conversion.
关键词	ethane gamma-aluminum oxide interfaces oxidative dehydrogenation solid oxide electrolysis cell
收录类别	SCI ; SCIE ; EI
资助项目	CAS Youth Innovation Promotion[2015145]
WOS研究方向	Chemistry
WOS类目	Chemistry, Multidisciplinary
WOS记录号	WOS:000487780800001
出版者	WILEY-V C H VERLAG GMBH
EI主题词	Alumina ; Anodes ; Dehydrogenation ; Density functional theory ; Electrolysis ; Electrolytic cells ; Electronic structure ; Ethane ; Ethylene ; Interface states ; Interfaces (materials) ; Ordinary differential equations ; Oxygen ; Regenerative fuel cells ; Solid oxide fuel cells (SOFC) ; X ray photoelectron spectroscopy
WOS关键词	GAMMA-ALUMINA ; COMPOSITE CATHODES ; CATALYTIC-ACTIVITY ; PERFORMANCE ; OXYGEN ; ELECTRODES ; STABILITY ; HYDROGEN ; BEHAVIOR ; METALS
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/80223
专题	大科学中心_PI研究组_刘志组物质科学与技术学院物质科学与技术学院_博士生
共同第一作者	Lin, Le
通讯作者	Wang, Guoxiong
作者单位	1.Chinese Acad Sci, CAS Ctr Excellence Nanosci, Dalian Inst Chem Phys, State Key Lab Catalysis, Zhongshan Rd 457, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 3.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 200031, Peoples R China 4.Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, State Key Lab Funct Mat Informat, Shanghai 200050, Peoples R China
推荐引用方式 GB/T 7714	Song, Yuefeng,Lin, Le,Feng, Weicheng,et al. Interfacial Enhancement by gamma-Al2O3 of Electrochemical Oxidative Dehydrogenation of Ethane to Ethylene in Solid Oxide Electrolysis Cells[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2019.
APA	Song, Yuefeng.,Lin, Le.,Feng, Weicheng.,Zhang, Xiaomin.,Dong, Qiao.,...&Bao, Xinhe.(2019).Interfacial Enhancement by gamma-Al2O3 of Electrochemical Oxidative Dehydrogenation of Ethane to Ethylene in Solid Oxide Electrolysis Cells.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION.
MLA	Song, Yuefeng,et al."Interfacial Enhancement by gamma-Al2O3 of Electrochemical Oxidative Dehydrogenation of Ethane to Ethylene in Solid Oxide Electrolysis Cells".ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2019).