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Catalytic oxidation of ethyl acetate over Ru-Cu bimetallic catalysts: Further insights into reaction mechanism via in situ FTIR and DFT studies
Liu, Xiaolong1; Han, Qingzhen1; Shi, Wenbo1; Zhang, Cheng1; Li, Erwei1; Zhu, Tingyu1,2
2019
Source PublicationJOURNAL OF CATALYSIS
ISSN0021-9517
Volume369Pages:482-492
AbstractIn this work, ruthenium-based bimetallic catalysts of 1Ru-5 M/TiO2 (M = Co, Ce, Fe, Mn, Cu, Ni) were prepared and evaluated in ethyl acetate oxidation. It was found that 1Ru-5Cu/TiO2 gave the highest catalytic activity. The influence of CuO content and the preparation method on the catalytic activity was also studied. 1Ru-5Cu/TiO2 showed great catalytic stability in the on-stream reaction test. The influence of H2O on the catalytic activity is presented. The bimetallic catalyst 1Ru-5Cu/TiO2 showed better catalytic performance than the monometallic catalysts 1Ru/TiO2 and 5Cu/TiO2. XRD, TEM, HAADF-STEM, H-2-TPR, and XPS characterizations were conducted, and the synergistic effect between Ru and Cu was well presented. In situ FTIR studies were also conducted, and the reaction intermediates were revealed on the catalyst surface. The theoretical calculations suggested that ethyl acetate is more easily adsorbed on the CuO surface, while it reacts more easily on the RuO2 surface. Accordingly, a reaction mechanism for the catalytic oxidation of ethyl acetate over a Ru-Cu bimetallic catalyst is proposed. (C) 2018 Elsevier Inc. All rights reserved.
KeywordOxygenated volatile organic compounds Ethyl acetate Catalytic oxidation Ruthenium Bimetallic catalysts
DOI10.1016/j.jcat.2018.11.025
Language英语
WOS KeywordVOLATILE ORGANIC-COMPOUNDS ; HIGH-PERFORMANCE ; CARBON-MONOXIDE ; BINARY OXIDES ; COMBUSTION ; BENZENE ; ETHANOL ; COPPER ; CERIA ; CO
Funding ProjectNatural Science Foundation of China[21607154] ; Natural Science Foundation of China[11504374] ; National Key Research and Development Program of China[2017YFC0210304]
WOS Research AreaChemistry ; Engineering
WOS SubjectChemistry, Physical ; Engineering, Chemical
Funding OrganizationNatural Science Foundation of China ; National Key Research and Development Program of China
WOS IDWOS:000460711700049
PublisherACADEMIC PRESS INC ELSEVIER SCIENCE
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/28363
Collection中国科学院过程工程研究所
Corresponding AuthorLiu, Xiaolong; Zhu, Tingyu
Affiliation1.Chinese Acad Sci, Beijing Engn Res Ctr Proc Pollut Control, Natl Engn Lab Hydromet Cleaner Prod Technol, Inst Proc Engn, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Ctr Excellence Reg Atmospher Environm, Inst Urban Environm, Xiamen 361021, Peoples R China
Recommended Citation
GB/T 7714
Liu, Xiaolong,Han, Qingzhen,Shi, Wenbo,et al. Catalytic oxidation of ethyl acetate over Ru-Cu bimetallic catalysts: Further insights into reaction mechanism via in situ FTIR and DFT studies[J]. JOURNAL OF CATALYSIS,2019,369:482-492.
APA Liu, Xiaolong,Han, Qingzhen,Shi, Wenbo,Zhang, Cheng,Li, Erwei,&Zhu, Tingyu.(2019).Catalytic oxidation of ethyl acetate over Ru-Cu bimetallic catalysts: Further insights into reaction mechanism via in situ FTIR and DFT studies.JOURNAL OF CATALYSIS,369,482-492.
MLA Liu, Xiaolong,et al."Catalytic oxidation of ethyl acetate over Ru-Cu bimetallic catalysts: Further insights into reaction mechanism via in situ FTIR and DFT studies".JOURNAL OF CATALYSIS 369(2019):482-492.
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