Catalytic oxidation of ethyl acetate over silver catalysts supported on CeO2 with different morphologies | |
Qin, Yu1; Liu, Xiaolong2; Zhu, Tianle1; Zhu, Tingyu2 | |
刊名 | MATERIALS CHEMISTRY AND PHYSICS |
2019-05-01 | |
卷号 | 229页码:32-38 |
关键词 | Silver Morphology CeO2 Ethyl acetate Catalytic oxidation |
ISSN号 | 0254-0584 |
DOI | 10.1016/j.matchemphys.2019.02.065 |
英文摘要 | In this study, the Ag/CeO2 catalysts with three different morphologies of ceria nanocubes (CeO2-c), nanorods (CeO2-r) and nano-octahedra (CeO2-o) as supports were prepared by wet impregnation. Various characterizations such as XRD, BET, TEM/HRTEM, HAADF-STEM, XPS and H-2-TPR were conducted, and a four step catalytic transformation was accordingly proposed. It was found that Ag/CeO2-c showed much more metallic Ag, active oxygen species and higher reducibility than those of Ag/CeO2-r and Ag/CeO2-o mainly due to the morphology effect. Ag/CeO2 and CeO2 catalysts were evaluated in the oxidation of ethyl acetate, and their catalytic activities were in the sequence of Ag/CeO2-c > Ag/CeO2-r > CeO2-r > CeO2-c > Ag/CeO2-o > CeO2-o. Besides, in-situ FTIR results revealed that the organic species on the catalyst surface were mainly acetates and adsorbed ethyl acetate for Ag/CeO2-c and CeO2-c, respectively, suggesting that addition of Ag promoted the complete oxidation of ethyl acetate. |
资助项目 | National Key R&D Program of China[2016YFC0207103] ; Natural Science Foundation of China[21607154] |
WOS关键词 | VOLATILE ORGANIC-COMPOUNDS ; STRUCTURAL-PROPERTIES ; MANGANESE OXIDE ; SOOT OXIDATION ; COMBUSTION ; VOCS ; CERIA ; AG ; DEGRADATION ; ATMOSPHERES |
WOS研究方向 | Materials Science |
语种 | 英语 |
出版者 | ELSEVIER SCIENCE SA |
WOS记录号 | WOS:000468710500006 |
资助机构 | National Key R&D Program of China ; Natural Science Foundation of China |
内容类型 | 期刊论文 |
源URL | [http://ir.ipe.ac.cn/handle/122111/28213] |
专题 | 中国科学院过程工程研究所 |
通讯作者 | Zhu, Tianle |
作者单位 | 1.Beihang Univ, Sch Space & Environm, Beijing 100191, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing Engn Res Ctr Proc Pollut Control, Beijing 100190, Peoples R China |
推荐引用方式 GB/T 7714 | Qin, Yu,Liu, Xiaolong,Zhu, Tianle,et al. Catalytic oxidation of ethyl acetate over silver catalysts supported on CeO2 with different morphologies[J]. MATERIALS CHEMISTRY AND PHYSICS,2019,229:32-38. |
APA | Qin, Yu,Liu, Xiaolong,Zhu, Tianle,&Zhu, Tingyu.(2019).Catalytic oxidation of ethyl acetate over silver catalysts supported on CeO2 with different morphologies.MATERIALS CHEMISTRY AND PHYSICS,229,32-38. |
MLA | Qin, Yu,et al."Catalytic oxidation of ethyl acetate over silver catalysts supported on CeO2 with different morphologies".MATERIALS CHEMISTRY AND PHYSICS 229(2019):32-38. |
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