| Effects of precursor concentration on morphologies of Cu2O micro/nanocrystals and properties of CO self-sustained catalytic combustion | |
Ma PD(马盼东)1,2; Teng, Zihao1; Hao, Qinglan1; Kang RN(康润宁)2,3 ; Li, Bei1; Bin F(宾峰)2,3; Dou, Baojuan1
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| Corresponding Author | Bin, Feng([email protected]) ; Dou, Baojuan([email protected]) |
| Source Publication | FUEL
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| 2021-04-01 | |
| Volume | 289Pages:8 |
| ISSN | 0016-2361 |
| Abstract | The self-sustained catalytic combustion is one of the most effective ways to remove high concentration CO at low temperature. In this paper, Cu2O micro/nanocrystals with different morphologies were successfully synthesized by changing the precursor concentration using liquid phase reduction method. The obtained Cu2O were characterized using SEM, XRD, XPS, H-2-TPR and O-2-TPD, and the relationship between the catalytic performance and morphology was analyzed based on CO-TPD-MS and activity evaluation results. It was found that high precursor concentration leads to more exposure of active crystal planes of Cu2O. Compared with Cu2O-1 exposing only (100) crystal planes, Cu2O-5, the precursor concentration of which is 5 times of Cu2O-1, exposes (100) and (110) crystal planes. Cu2O-9, with 9 times of precursor concentration of Cu2O-1, exposes (100), (110) and (1 1 1) crystal planes simultaneously. All the obtained Cu2O with different precursor concentrations can achieve self-sustained CO catalytic combustion, and the catalytic activity increases with increasing precursor concentration (Cu2O-1 < Cu2O-5 < Cu2O-9). The results prove that unsaturated coordination of Cu and O on the (1 1 1) and (1 1 0) planes can enhance the corresponding reducibility, adsorption and activation of gaseous oxygen, consequently promoting the CO oxidation to CO2 over Cu2O-9. |
| Keyword | Cu2O micro/nanocrystals Precursor concentration Morphology CO oxidation Self-sustained catalytic combustion |
| DOI | 10.1016/j.fuel.2020.119776 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000612056500008 |
| WOS Keyword | CARBON-MONOXIDE ; SCALE SYNTHESIS ; PERFORMANCE ; OXIDATION ; NANOCUBES ; ANODE |
| WOS Research Area | Energy & Fuels ; Engineering |
| WOS Subject | Energy & Fuels ; Engineering, Chemical |
| Funding Project | National Natural Science Foundation of China[51776216] ; Postdoctoral Science Foundation of China[2017M623284] |
| Funding Organization | National Natural Science Foundation of China ; Postdoctoral Science Foundation of China |
| Classification | 一类 |
| Ranking | 1 |
| Contributor | Bin, Feng ; Dou, Baojuan |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/86104 |
| Collection | 高温气体动力学国家重点实验室 |
| Affiliation | 1.Tianjin Univ Sci & Technol, Coll Marine & Environm Sci, Tianjin 300457, Peoples R China; 2.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China; 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Ma PD,Teng, Zihao,Hao, Qinglan,et al. Effects of precursor concentration on morphologies of Cu2O micro/nanocrystals and properties of CO self-sustained catalytic combustion[J]. FUEL,2021,289:8.Rp_Au:Bin, Feng, Dou, Baojuan |
| APA | 马盼东.,Teng, Zihao.,Hao, Qinglan.,康润宁.,Li, Bei.,...&Dou, Baojuan.(2021).Effects of precursor concentration on morphologies of Cu2O micro/nanocrystals and properties of CO self-sustained catalytic combustion.FUEL,289,8. |
| MLA | 马盼东,et al."Effects of precursor concentration on morphologies of Cu2O micro/nanocrystals and properties of CO self-sustained catalytic combustion".FUEL 289(2021):8. |
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| Jp2021074.pdf（4965KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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