Catalytic performance of MnOx-NiO composite oxide in lean methane combustion at low temperature
文献类型：期刊论文
| ; | |
| 作者 | Zhang, YG; Qin, ZF; Wang, GF; Zhu, HQ; Dong, M; Li, SN; Wu, ZW; Li, ZK; Wu, ZH; Zhang, J |
| 刊名 | APPLIED CATALYSIS B-ENVIRONMENTAL
 ; APPLIED CATALYSIS B-ENVIRONMENTAL
|
| 出版日期 | 2013 ; 2013 |
| 卷号 | 129页码:172-181 |
| 关键词 | Nickel oxide Manganese oxide MnOx-NiO composite oxide Lean methane Catalytic combustion Nickel oxide Manganese oxide MnOx-NiO composite oxide Lean methane Catalytic combustion |
| ISSN号 | 0926-3373 |
| DOI | 10.1016/j.apcatb.2012.09.021 |
| 英文摘要 | A series of MnOx-NiO composite oxide catalysts were prepared by co-precipitation method and used in the catalytic combustion of lean methane at low temperature. Compared with the corresponding single NiO and MnOx oxides, the MnOx-NiO composite oxide with proper composition exhibits much higher catalytic performance in the lean methane oxidation. XRD and HRTEM results demonstrate that MnOx-NiO is in the form of a Ni-Mn-O solid solution. XAFS and XPS results indicate that the content of manganese in MnOx-NiO has a significant influence on the oxidation state of manganese and the crystal defect of nickel oxide. MnOx-NiO catalyst with an atomic Mn/(Mn + Ni) ratio of 0.13 is provided with abundant highly dispersed manganese species of higher valence (Mn4+) and higher coordination number as well as certain nickel vacancies, due to the strong interaction between Ni and Mn species. H-2-TPR and O-2-TPD results show that the MnOx-NiO composite oxide exhibits better reducibility and oxygen mobility than NiO. All these characterizations suggest a prominent synergism between NiO and MnOx in the MnOx-NiO composite oxide, which contributes to its high performance in the lean methane combustion. (C) 2012 Elsevier B.V. All rights reserved.; A series of MnOx-NiO composite oxide catalysts were prepared by co-precipitation method and used in the catalytic combustion of lean methane at low temperature. Compared with the corresponding single NiO and MnOx oxides, the MnOx-NiO composite oxide with proper composition exhibits much higher catalytic performance in the lean methane oxidation. XRD and HRTEM results demonstrate that MnOx-NiO is in the form of a Ni-Mn-O solid solution. XAFS and XPS results indicate that the content of manganese in MnOx-NiO has a significant influence on the oxidation state of manganese and the crystal defect of nickel oxide. MnOx-NiO catalyst with an atomic Mn/(Mn + Ni) ratio of 0.13 is provided with abundant highly dispersed manganese species of higher valence (Mn4+) and higher coordination number as well as certain nickel vacancies, due to the strong interaction between Ni and Mn species. H-2-TPR and O-2-TPD results show that the MnOx-NiO composite oxide exhibits better reducibility and oxygen mobility than NiO. All these characterizations suggest a prominent synergism between NiO and MnOx in the MnOx-NiO composite oxide, which contributes to its high performance in the lean methane combustion. (C) 2012 Elsevier B.V. All rights reserved. |
| 学科主题 | Chemistry; Engineering ; Chemistry; Engineering |
| 收录类别 | SCI |
| 电子版国际标准刊号 | 1873-3883 |
| 语种 | 英语 |
| WOS记录号 | WOS:000312689500020 ; WOS:000312689500020 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/223880]  |
| 专题 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Zhang, YG,Qin, ZF,Wang, GF,et al. Catalytic performance of MnOx-NiO composite oxide in lean methane combustion at low temperature, Catalytic performance of MnOx-NiO composite oxide in lean methane combustion at low temperature[J]. APPLIED CATALYSIS B-ENVIRONMENTAL, APPLIED CATALYSIS B-ENVIRONMENTAL,2013, 2013,129, 129:172-181, 172-181. |
| APA | Zhang, YG.,Qin, ZF.,Wang, GF.,Zhu, HQ.,Dong, M.,...&胡天斗.(2013).Catalytic performance of MnOx-NiO composite oxide in lean methane combustion at low temperature.APPLIED CATALYSIS B-ENVIRONMENTAL,129,172-181. |
| MLA | Zhang, YG,et al."Catalytic performance of MnOx-NiO composite oxide in lean methane combustion at low temperature".APPLIED CATALYSIS B-ENVIRONMENTAL 129(2013):172-181. |
入库方式： OAI收割
来源：高能物理研究所
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