Synergetic effect over flame-made manganese doped CuO-CeO2 nanocatalyst for enhanced CO oxidation performance
文献类型：期刊论文
| 作者 | Zhao, Feng1,2; Li, Shuangde1; Wu, Xiaofeng1; Yue, Renliang1; Li, Weiman1,2; Chen, Yunfa1,3 |
| 刊名 | RSC ADVANCES
 |
| 出版日期 | 2019-01-23 |
| 卷号 | 9期号:5页码:2343-2352 |
| ISSN号 | 2046-2069 |
| DOI | 10.1039/c8ra09626k |
| 英文摘要 | CuO-CeO2 nanocatalysts with different amounts of Mn dopping (Mn/Cu molar ratios of 0.5 : 5, 1 : 5 and 1.5 : 5) were synthesized by flame spray pyrolysis (FSP) method and tested in the catalytic oxidation of CO. The physicochemical properties of the synthesised samples were characterized systematically, including using X-ray diffraction (XRD), Raman spectroscopy, field-emission scanning electron microscopy (FESEM), Brunauer-Emmett-Teller (BET), X-ray photoelectron spectroscopy (XPS), oxygen-temperature programmed desorption (O-2-TPD), hydrogen-temperature programmed reduction (H-2-TPR) and in situ diffuse reflectance infrared Fourier transform spectroscopy (in situ DRIFTS). The results showed that the 1Mn-Cu-Ce sample (Mn/Cu molar ratio of 1 : 5) exhibited superior catalytic activity for CO oxidation, with the temperature of 90% CO oxidation at 131 degrees C at a high space velocity (SV = 60 000 mL g(-1) h(-1)), which was 56 degrees C lower than that of the Cu-Ce sample. In addition, the 1Mn-Cu-Ce sample displays excellent stability with prolonged time on CO stream and the resistance to water vapor. The significantly enhanced activity was correlated with strong synergetic effect, leading to fine textual properties, abundant chemically adsorbed oxygen and high lattice oxygen mobility, which further induced more Cu+ species and less formation of carbon intermediates during the CO oxidation process detected by in situ DRIFTS analysis. This work will provide in-depth understanding of the synergetic effect on CO oxidation performances over Mn doped CuO-CeO2 composite catalysts through FSP method. |
| WOS关键词 | PREFERENTIAL OXIDATION ; CATALYTIC PERFORMANCE ; SELECTIVE OXIDATION ; CARBON-MONOXIDE ; CALCINATION TEMPERATURE ; CUO-MNOX-CEO2 CATALYSTS ; OXIDE CATALYSTS ; MIXED OXIDES ; MN ; CERIA |
| 资助项目 | National Key Research and Development Program of China[2016YFC0204903] ; National Key Research and Development Program of China[2016YFC0207100] ; National Natural Science Foundation of China[51672273] |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000457379300002 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/27837]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Chen, Yunfa |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Reg Atmospher Environm, Xiamen 361021, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Feng,Li, Shuangde,Wu, Xiaofeng,et al. Synergetic effect over flame-made manganese doped CuO-CeO2 nanocatalyst for enhanced CO oxidation performance[J]. RSC ADVANCES,2019,9(5):2343-2352. |
| APA | Zhao, Feng,Li, Shuangde,Wu, Xiaofeng,Yue, Renliang,Li, Weiman,&Chen, Yunfa.(2019).Synergetic effect over flame-made manganese doped CuO-CeO2 nanocatalyst for enhanced CO oxidation performance.RSC ADVANCES,9(5),2343-2352. |
| MLA | Zhao, Feng,et al."Synergetic effect over flame-made manganese doped CuO-CeO2 nanocatalyst for enhanced CO oxidation performance".RSC ADVANCES 9.5(2019):2343-2352. |
入库方式： OAI收割
来源：过程工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。