Carbon nitride supported Fe-2 cluster catalysts with superior performance for alkene epoxidation
文献类型：期刊论文
| 作者 | Tian, SB; Fu, Q; Chen, WX; Feng, QC; Chen, Z; Zhang, J; Cheong, WC; Yu, R; Gu, L; Dong, JC
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| 刊名 | NATURE COMMUNICATIONS
 |
| 出版日期 | 2018 |
| 卷号 | 9页码:2353 |
| ISSN号 | 2041-1723 |
| DOI | 10.1038/s41467-018-04845-x |
| 文献子类 | Article |
| 英文摘要 | Sub-nano metal clusters often exhibit unique and unexpected properties, which make them particularly attractive as catalysts. Herein, we report a "precursor-preselected" wet-chemistry strategy to synthesize highly dispersed Fe-2 clusters that are supported on mesoporous carbon nitride (mpg-C3N4). The obtained Fe-2/mpg-C3N4 sample exhibits superior catalytic performance for the epoxidation of trans-stilbene to trans-stilbene oxide, showing outstanding selectivity of 93% at high conversion of 91%. Molecular oxygen is the only oxidant and no aldehyde is used as co-reagent. Under the same condition, by contrast, iron porphyrin, single-atom Fe, and small Fe nanoparticles (ca. 3 nm) are nearly reactively inert. First-principles calculations reveal that the unique reactivity of the Fe-2 clusters originates from the formation of active oxygen species. The general applicability of the synthesis approach is further demonstrated by producing other diatomic clusters like Pd-2 and Ir-2, which lays the foundation for discovering diatomic cluster catalysts. |
| WOS关键词 | TOTAL-ENERGY CALCULATIONS ; WAVE BASIS-SET ; SELECTIVE OXIDATION ; MOLECULAR-OXYGEN ; CO OXIDATION ; ETHYLENE EPOXIDATION ; PLATINUM CLUSTERS ; GOLD CLUSTERS ; METAL ; NANOCLUSTERS |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000435438000003 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/286040]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Tian, SB,Fu, Q,Chen, WX,et al. Carbon nitride supported Fe-2 cluster catalysts with superior performance for alkene epoxidation[J]. NATURE COMMUNICATIONS,2018,9:2353. |
| APA | Tian, SB.,Fu, Q.,Chen, WX.,Feng, QC.,Chen, Z.,...&董俊才.(2018).Carbon nitride supported Fe-2 cluster catalysts with superior performance for alkene epoxidation.NATURE COMMUNICATIONS,9,2353. |
| MLA | Tian, SB,et al."Carbon nitride supported Fe-2 cluster catalysts with superior performance for alkene epoxidation".NATURE COMMUNICATIONS 9(2018):2353. |
入库方式： OAI收割
来源：高能物理研究所
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