Porous Cu-Mn-O catalysts fabricated by spray pyrolysis method for efficient CO oxidation
文献类型：期刊论文
| 作者 | Zhou, Yang1,2; Liu, Xiaoyuan1,2; Wang, Ke1,2; Li, Jing2; Zhang, Xinglai2; Jin, Xin2; Tang, Xinyue2; Zhu, Xiuhui3; Zhang, Ruishi3; Jiang, Xin2 |
| 刊名 | RESULTS IN PHYSICS
 |
| 出版日期 | 2019-03-01 |
| 卷号 | 12页码:1893-1900 |
| 关键词 | Spray pyrolysis Cu-Mn-O catalysts CO oxidation Porous nanostructures Synergistic effect |
| ISSN号 | 2211-3797 |
| DOI | 10.1016/j.rinp.2019.01.049 |
| 通讯作者 | Liu, Baodan(baodanliu@imr.ac.cn) |
| 英文摘要 | Series of "Hopcalite" catalysts for low-temperature CO oxidation are prepared through a facile ultra-sonic spray pyrolysis approach. It has been found that the spray pyrolysis temperature and Cu/Mn atomic ratio in initial precursors show significant impacts on the catalytic activity of Cu-Mn-O catalysts. The catalyst synthesized at 550 degrees C with Cu/Mn = 1/2 in precursor (Cul Mn2-550) shows the highest catalytic activity towards CO oxidation (T-100 = 63 degrees C; E-a = 17.04 KJ mol(-1)), owing to the formation of CuMn2O4 phase with poor crystallinity. The synergistic effect of Cu and Mn species in spinel Cu-Mn-O phases attributes to the evaluated catalytic activity compared with those of pure oxides of copper or manganese towards CO oxidation. The results reveal that Cul Mn2-550 not only provides more defects and vacancies to create more active sites, but also generates more highly active Cu (II) to promote CO oxidation. On the contrary, the decreasing amount of Cu (II) and the higher degree of crystallinity resulting from higher synthesis temperature lead to the deterioration of catalytic activity. Moreover, the phase transformation among the Cu(x)Mn(3-x)O(4 )spinels also shows significant effect on CO conversion rate. Finally, the formation mechanism of Cu-Mn-O catalysts and related CO oxidation process are discussed based on series of characterizations. |
| 资助项目 | National Natural Science Foundation of China[51702326] ; National Natural Science Foundation of China[51872296] ; Youth Innovation Promotion Association, Chinese Academy of Sciences[Y4NC711171] ; Basic Science Innovation Program of Shenyang National Laboratory for Materials Science[2017RP25] |
| WOS研究方向 | Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000460704700275 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | National Natural Science Foundation of China ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; Basic Science Innovation Program of Shenyang National Laboratory for Materials Science |
| 源URL | [http://ir.imr.ac.cn/handle/321006/132086]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Liu, Baodan |
| 作者单位 | 1.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 2.Chinese Acad Sci, IMR, Shenyang Natl Lab Mat Sci SYNL, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 3.Yingkou Univ Technol, Dept Chem & Environm Engn, Yingkou 115014, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Yang,Liu, Xiaoyuan,Wang, Ke,et al. Porous Cu-Mn-O catalysts fabricated by spray pyrolysis method for efficient CO oxidation[J]. RESULTS IN PHYSICS,2019,12:1893-1900. |
| APA | Zhou, Yang.,Liu, Xiaoyuan.,Wang, Ke.,Li, Jing.,Zhang, Xinglai.,...&Liu, Baodan.(2019).Porous Cu-Mn-O catalysts fabricated by spray pyrolysis method for efficient CO oxidation.RESULTS IN PHYSICS,12,1893-1900. |
| MLA | Zhou, Yang,et al."Porous Cu-Mn-O catalysts fabricated by spray pyrolysis method for efficient CO oxidation".RESULTS IN PHYSICS 12(2019):1893-1900. |
入库方式： OAI收割
来源：金属研究所
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