Elucidating the Active Site and the Role of Alkali Metals in Selective Hydrodeoxygenation of Phenols over Iron-Carbide-based Catalyst
文献类型：期刊论文
| 作者 | Zhang, Jianghao; Sudduth, Berlin; Sun, Junming; Kovarik, Libor; Engelhard, Mark H.; Wang, Yong |
| 刊名 | CHEMSUSCHEM
 |
| 出版日期 | 2021-10-20 |
| 卷号 | 14期号:20页码:4546-4555 |
| 关键词 | alkali metals C-O bond cleavage graphene iron carbide tautomerism |
| ISSN号 | 1864-5631 |
| 英文摘要 | Iron-carbide-based catalysts have been explored in the selective hydrodeoxygenation (HDO) of phenol, aiming at elucidating the role of active site and alkali metal. Complementary characterization such as X-ray diffraction, X-ray photoelectron spectroscopy, high-resolution transmission electron microscopy, and scanning transmission electron microscopy coupled with electron energy loss spectroscopy, together with catalytic evaluations revealed a rapid structural reconstruction of iron carbide (Fe3C) catalysts, leading to a stable defective graphene-covered metallic Fe active phase (G@Fe) under reaction conditions. Further studies using different alkali metals (i. e., Na, K, and Cs) revealed that alkali metals showed negligible effect on the phase transformation of Fe3C. However, the reconstructed G@Fe doped with alkali metals inhibited the tautomerization, a facile reaction pathway to saturation of the aromatic ring, leading to enhanced selectivity to arene. The extent of inhibition of tautomerization or selectivity to arene was closely related to the degree of electron donation of alkali metal to Fe. |
| WOS研究方向 | Chemistry, Multidisciplinary ; Green & Sustainable Science & Technology |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/46039]  |
| 专题 | 生态环境研究中心_水污染控制实验室 |
| 作者单位 | 1.Pacific Northwest Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA 2.Washington State Univ, Gene & Linda Voiland Sch Chem Engn & Bioengn, Pullman, WA 99164 USA 3.Chinese Acad Sci, State Key Joint Lab Environm Simulat & Pollut Con, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China 4.Pacific Northwest Natl Lab, Inst Integrated Catalysis, Richland, WA 99352 USA |
| 推荐引用方式 GB/T 7714 | Zhang, Jianghao,Sudduth, Berlin,Sun, Junming,et al. Elucidating the Active Site and the Role of Alkali Metals in Selective Hydrodeoxygenation of Phenols over Iron-Carbide-based Catalyst[J]. CHEMSUSCHEM,2021,14(20):4546-4555. |
| APA | Zhang, Jianghao,Sudduth, Berlin,Sun, Junming,Kovarik, Libor,Engelhard, Mark H.,&Wang, Yong.(2021).Elucidating the Active Site and the Role of Alkali Metals in Selective Hydrodeoxygenation of Phenols over Iron-Carbide-based Catalyst.CHEMSUSCHEM,14(20),4546-4555. |
| MLA | Zhang, Jianghao,et al."Elucidating the Active Site and the Role of Alkali Metals in Selective Hydrodeoxygenation of Phenols over Iron-Carbide-based Catalyst".CHEMSUSCHEM 14.20(2021):4546-4555. |
入库方式： OAI收割
来源：生态环境研究中心
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