Interfacial Enhancement by gamma-Al2O3 of Electrochemical Oxidative Dehydrogenation of Ethane to Ethylene in Solid Oxide Electrolysis Cells
2019-09-26
发表期刊ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (IF:16.1[JCR-2023],16.2[5-Year])
ISSN1433-7851
发表状态已发表
DOI10.1002/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
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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).
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