Identifying the descriptor governing NO oxidation on mullite Sm(Y, Tb, Gd, Lu)Mn2O5 for diesel exhaust cleaning
文献类型：期刊论文
| 作者 | Li, Hao-Bo6; Wang, Wei-Hua6; Qian, Xinyu6; Cheng, Yahui6; Xie, Xinjian7; Liu, Jieyu6; Sun, Shuhui8; Zhou, Jigang9; Hu, Yongfeng9; Xu, Jianping10 |
| 刊名 | CATALYSIS SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2016 |
| 卷号 | 6期号:11页码:3971-3975 |
| ISSN号 | 2044-4753 |
| DOI | 10.1039/c5cy01798j |
| 文献子类 | Article |
| 英文摘要 | The current fast selective catalytic reduction (fast-SCR) technology shows effectiveness in converting diesel engine generated nitrogen oxides (NOx) to environmentally benign nitrogen (N-2) with the aid of the precious metal catalyst platinum. Driven by the previous finding of the low-cost mullite's great superiority over Pt in terms of NO oxidation, a series of Mn-based oxides Sm(Y, Tb, Gd, Lu)Mn2O5 are synthesized to identify a general descriptor that governs the catalytic performance. Utilizing soft X-ray absorption characterization and molecular orbital theory, here, we show that the catalytic activity difference presents little dependence on the 3d electron occupancy when the A site element is varied (Sm, Tb, Y, Gd, Lu). Instead, strong p-d hybridization between lattice O and octahedral Mn leads to weak bonding strength between external O* and pyramid Mn and essentially increases the catalytic activity for converting NO to NO2. |
| WOS关键词 | SELECTIVE CATALYTIC-REDUCTION ; RAY-ABSORPTION SPECTROSCOPY ; DENSITY-FUNCTIONAL THEORY ; PEROVSKITES ; OXIDES |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000378276100035 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/170532]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 通讯作者 | Lu, Feng; Wang, Weichao |
| 作者单位 | 1.Tianjin Univ, Sch Mat Sci & Engn, Tianjin 300072, Peoples R China 2.Tianjin Univ, Dept Phys, Tianjin 300072, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China 4.Nankai Univ, Coll Chem, Tianjin 300071, Peoples R China 5.Chinese Acad Sci, Beijing Synchrotron Radiat Facil, Beijing 100049, Peoples R China 6.Nankai Univ, Dept Elect, Tianjin 300071, Peoples R China 7.Univ Technol Tianjin, Sch Mat Sci & Engn Hebei, Tianjin 300401, Peoples R China 8.Inst Natl Rech Sci, Varennes, PQ J3X 1S2, Canada 9.Canadian Light Source, Saskatoon, SK S7N 2V3, Canada 10.Tianjin Univ Technol, Coll Sci, Tianjin 300384, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Hao-Bo,Wang, Wei-Hua,Qian, Xinyu,et al. Identifying the descriptor governing NO oxidation on mullite Sm(Y, Tb, Gd, Lu)Mn2O5 for diesel exhaust cleaning[J]. CATALYSIS SCIENCE & TECHNOLOGY,2016,6(11):3971-3975. |
| APA | Li, Hao-Bo.,Wang, Wei-Hua.,Qian, Xinyu.,Cheng, Yahui.,Xie, Xinjian.,...&Liu, Hui.(2016).Identifying the descriptor governing NO oxidation on mullite Sm(Y, Tb, Gd, Lu)Mn2O5 for diesel exhaust cleaning.CATALYSIS SCIENCE & TECHNOLOGY,6(11),3971-3975. |
| MLA | Li, Hao-Bo,et al."Identifying the descriptor governing NO oxidation on mullite Sm(Y, Tb, Gd, Lu)Mn2O5 for diesel exhaust cleaning".CATALYSIS SCIENCE & TECHNOLOGY 6.11(2016):3971-3975. |
入库方式： OAI收割
来源：大连化学物理研究所
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