Single Atomic Cu-N-2 Catalytic Sites for Highly Active and Selective Hydroxylation of Benzene to Phenol
文献类型：期刊论文
| 作者 | Zhang, T; Nie, XW; Yu, WW; Guo, XW; Song, CS; Si, R; Liu, YF; Zhao, ZK |
| 刊名 | ISCIENCE
 |
| 出版日期 | 2019 |
| 卷号 | 22页码:97-+ |
| 关键词 | X-RAY-ABSORPTION HYDROGEN-PEROXIDE OXYGEN REDUCTION CARBON NITRIDE IN-SITU OXIDATION COPPER ACTIVATION METHANE COMPLEXES |
| ISSN号 | 2589-0042 |
| DOI | 10.1016/j.isci.2019.11.010 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Searching for an efficient single-atomcatalyst for benzene hydroxylation to phenol is of critical importance, but it still remains a challenge. Herein, a single-atom catalyst with unique Cu-N-2 moieties (Cu-1-N-2/HCNS) was prepared and confirmed by HAADF-STEM and EXAFS. Turnover number (TON) over Cu-1-N-2/HCNS (6,935) is 3.4 times of Cu-1-N-3/HCNS (2,034) under the same reaction conditions, and both exhibit much higher phenol selectivity (close to 99%) and stability compared with Cu nanoparticles and nanoclusters. Experiments and DFT calculations reveal that atomically dispersed Cu species are active sites for benzene hydroxylation to phenol, and the Cu-N-2 is more active than Cu-N-3 owing to its much lower energy barrier concerning the activation of H2O2 led by its unique coordination state of local atomic structure. We envision that this work opens a new window for modulating coordination environments of single metallic atoms in catalysis design. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/32204]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Penn State Univ, Dept Energy & Mineral Engn & Chem Engn, University Pk, PA 16802 USA; 2.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China; 3.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China 4.Dalian Univ Technol, PSU DUT Joint Ctr Energy Res, Sch Chem Engn, State Key Lab Fine Chem, Dalian 116024, Peoples R China; 5.Penn State Univ, EMS Energy Inst PSU DUT Joint Ctr Energy Res, University Pk, PA 16802 USA; |
| 推荐引用方式 GB/T 7714 | Zhang, T,Nie, XW,Yu, WW,et al. Single Atomic Cu-N-2 Catalytic Sites for Highly Active and Selective Hydroxylation of Benzene to Phenol[J]. ISCIENCE,2019,22:97-+. |
| APA | Zhang, T.,Nie, XW.,Yu, WW.,Guo, XW.,Song, CS.,...&Zhao, ZK.(2019).Single Atomic Cu-N-2 Catalytic Sites for Highly Active and Selective Hydroxylation of Benzene to Phenol.ISCIENCE,22,97-+. |
| MLA | Zhang, T,et al."Single Atomic Cu-N-2 Catalytic Sites for Highly Active and Selective Hydroxylation of Benzene to Phenol".ISCIENCE 22(2019):97-+. |
入库方式： OAI收割
来源：上海应用物理研究所
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