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Title: Effect of Oxide Support on Catalytic Performance of FeNi–based Catalysts for CO 2–assisted Oxidative Dehydrogenation of Ethane

Abstract

CO 2–assisted oxidative dehydrogenation of ethane over Fe 3Ni 1 catalysts supported on SiO 2, ZrO 2, and CeO 2, as well as CeO 2–supported Fe 3xNi x with different metal loadings (x=0.25, 0.5, 1, 2, 4), were investigated to illustrate the effects of the oxide support and the metal loading amount in tuning the catalytic activity and selectivity. The oxidation state and the dispersion of the Ni and Fe species on the supported catalysts were determined by using in–situ X–ray diffraction (XRD) and X–ray absorption fine structure (XAFS) measurements. Among these FeNi–based catalysts, Fe 3Ni 1/CeO 2 exhibited the best catalytic activity and maximum ethylene yield for the oxidative dehydrogenation of ethane. Furthermore, excessive loading amount of active metals changed the reaction selectivity from oxidative dehydrogenation to dry reforming. The high activity and selectivity for CO 2–assisted oxidative dehydrogenation of ethane over Fe 3Ni 1/CeO 2 are likely due to the formation of Ni–FeO x/CeO x interfacial sites, while the presence of Ni–ZrO 2 interfacial sites on Fe 3Ni 1/ZrO 2 and NiFe–CeO x interfacial sites on Fe 12Ni 4/CeO 2 likely tune the reaction selectivity toward dry reforming of ethane.

Authors:
ORCiD logo [1];  [2]; ORCiD logo [3]
  1. Tsinghua Univ., Beijing (China); Brookhaven National Lab. (BNL), Upton, NY (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. Brookhaven National Lab. (BNL), Upton, NY (United States); Columbia Univ., New York, NY (United States)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1579502
Report Number(s):
BNL-212412-2019-JAAM
Journal ID: ISSN 1867-3880
Grant/Contract Number:  
SC0012704; AC02‐06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
ChemCatChem
Additional Journal Information:
Journal Name: ChemCatChem; Journal ID: ISSN 1867-3880
Publisher:
ChemPubSoc Europe
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; Heterogeneous catalysis; Support effect; Oxidative dehydrogenation; Dry reforming; Selectivity

Citation Formats

Yan, Binhang, Yao, Siyu, and Chen, Jingguang G. Effect of Oxide Support on Catalytic Performance of FeNi–based Catalysts for CO2–assisted Oxidative Dehydrogenation of Ethane. United States: N. p., 2019. Web. doi:10.1002/cctc.201901585.
Yan, Binhang, Yao, Siyu, & Chen, Jingguang G. Effect of Oxide Support on Catalytic Performance of FeNi–based Catalysts for CO2–assisted Oxidative Dehydrogenation of Ethane. United States. doi:10.1002/cctc.201901585.
Yan, Binhang, Yao, Siyu, and Chen, Jingguang G. Tue . "Effect of Oxide Support on Catalytic Performance of FeNi–based Catalysts for CO2–assisted Oxidative Dehydrogenation of Ethane". United States. doi:10.1002/cctc.201901585.
@article{osti_1579502,
title = {Effect of Oxide Support on Catalytic Performance of FeNi–based Catalysts for CO2–assisted Oxidative Dehydrogenation of Ethane},
author = {Yan, Binhang and Yao, Siyu and Chen, Jingguang G.},
abstractNote = {CO2–assisted oxidative dehydrogenation of ethane over Fe3Ni1 catalysts supported on SiO2, ZrO2, and CeO2, as well as CeO2–supported Fe3xNix with different metal loadings (x=0.25, 0.5, 1, 2, 4), were investigated to illustrate the effects of the oxide support and the metal loading amount in tuning the catalytic activity and selectivity. The oxidation state and the dispersion of the Ni and Fe species on the supported catalysts were determined by using in–situ X–ray diffraction (XRD) and X–ray absorption fine structure (XAFS) measurements. Among these FeNi–based catalysts, Fe3Ni1/CeO2 exhibited the best catalytic activity and maximum ethylene yield for the oxidative dehydrogenation of ethane. Furthermore, excessive loading amount of active metals changed the reaction selectivity from oxidative dehydrogenation to dry reforming. The high activity and selectivity for CO2–assisted oxidative dehydrogenation of ethane over Fe3Ni1/CeO2 are likely due to the formation of Ni–FeOx/CeOx interfacial sites, while the presence of Ni–ZrO2 interfacial sites on Fe3Ni1/ZrO2 and NiFe–CeOx interfacial sites on Fe12Ni4/CeO2 likely tune the reaction selectivity toward dry reforming of ethane.},
doi = {10.1002/cctc.201901585},
journal = {ChemCatChem},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {10}
}

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