Temperature-Dependent Selectivity of Hydrogenation/Hydrogenolysis during Phenol Conversion over Ni Catalysts
文献类型：期刊论文
| 作者 | Shi, YC; Xing, EH; Zhang, JM; Xie, YB; Zhao, H; Sheng, YX; Cao, HB; Shi, Yanchun; Xing, Enhui; Zhang, Jimei |
| 刊名 | ACS SUSTAINABLE CHEMISTRY & ENGINEERING
 |
| 出版日期 | 2019 |
| 卷号 | 7期号:10页码:9464 |
| ISSN号 | 2168-0485 |
| 关键词 | Phenol M-CRESOL Hydrogenolysis METAL-CLUSTERS Benzene HYDRODEOXYGENATION Temperature-dependent selectivity control PHASE Encapsulated Ni catalyst PD DEOXYGENATION AROMATICS ZEOLITE NICKEL HYDROGENATION |
| DOI | 10.1021/acssuschemeng.9b00703 |
| 文献子类 | Article |
| 英文摘要 | It is challenging to selectively upgrade phenolic compounds to aromatics because of much weaker adsorption of hydroxyl compared to that of phenyl upon Ni catalysts. With 10% Ni loading in theory, three Ni catalysts with different Ni nanoparticle sizes were prepared with the wet impregnation method on SiO2 and Silicalite-1 and with the in situ encapsulation method (Silicalite-1). On the basis of the results, we proposed a general rule concerning temperature dependent selectivity control on phenol hydroconversion over Ni catalysts. As well as benzene saturation in consecutive mode, hydrogenation of phenyl ring was more dramatically inhibited at elevated temperature via decreased adsorption of benzene rings than that of hydroxyl to selectively favor hydrogenolysis over hydrogenation in parallel mode. Among three Ni catalysts, Ni@Silicalite-1 with 3-5 nm Ni nanoparticle sizes encapsulated imposed the restricted adsorption conformation of phenol via end-up mode within channels of Silicalite-1 zeolite to further improve benzene selectivity. Because of the restriction of channels and smaller Ni nanoparticle sizes, better activity and stability were simultaneously achieved over Ni@Silicalite-1 catalyst, as well as superior benzene selectivity at higher temperature via thermodynamic hindrance on phenyl adsorption to facilitate benzene formation in kinetics rather than hydrogenation of phenyl without further saturation of benzene via hindrance on benzene adsorption. |
| WOS记录号 | WOS:000469304900043 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/28192]  |
| 专题 | 中国科学院过程工程研究所 |
| 推荐引用方式 GB/T 7714 | Shi, YC,Xing, EH,Zhang, JM,et al. Temperature-Dependent Selectivity of Hydrogenation/Hydrogenolysis during Phenol Conversion over Ni Catalysts[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2019,7(10):9464, 9473. |
| APA | Shi, YC.,Xing, EH.,Zhang, JM.,Xie, YB.,Zhao, H.,...&Cao, Hongbin.(2019).Temperature-Dependent Selectivity of Hydrogenation/Hydrogenolysis during Phenol Conversion over Ni Catalysts.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,7(10),9464. |
| MLA | Shi, YC,et al."Temperature-Dependent Selectivity of Hydrogenation/Hydrogenolysis during Phenol Conversion over Ni Catalysts".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 7.10(2019):9464. |
入库方式： OAI收割
来源：过程工程研究所
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