Subnanometer Bimetallic Platinum-Zinc Clusters in Zeolites for Propane Dehydrogenation
文献类型：期刊论文
| 作者 | Sun, QM; Wang, N; Fan, QY; Zeng, L; Mayoral, A; Miao, S; Yang, RO; Jiang, Z; Zhou, W; Zhang, JC |
| 刊名 | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
 |
| 出版日期 | 2020 |
| 卷号 | 59期号:44页码:19450-19459 |
| 关键词 | OXIDATIVE DEHYDROGENATION CATALYTIC CONSEQUENCES METAL-CLUSTERS NANOPARTICLES CO |
| ISSN号 | 1433-7851 |
| DOI | 10.1002/anie.202003349 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Propane dehydrogenation (PDH) has great potential to meet the increasing global demand for propylene, but the widely used Pt-based catalysts usually suffer from short-term stability and unsatisfactory propylene selectivity. Herein, we develop a ligand-protected direct hydrogen reduction method for encapsulating subnanometer bimetallic Pt-Zn clusters inside silicalite-1 (S-1) zeolite. The introduction of Zn species significantly improved the stability of the Pt clusters and gave a superhigh propylene selectivity of 99.3 % with a weight hourly space velocity (WHSV) of 3.6-54 h(-1) and specific activity of propylene formation of 65.5 molC3H6 g(Pt)(-1) h(-1) (WHSV=108 h(-1)) at 550 degrees C. Moreover, no obvious deactivation was observed over PtZn4@S-1-H catalyst even after 13000 min on stream (WHSV=3.6 h(-1)), affording an extremely low deactivation constant of 0.001 h(-1), which is 200 times lower than that of the PtZn4/Al2O3 counterpart under the same conditions. We also show that the introduction of Cs+ ions into the zeolite can improve the regeneration stability of catalysts, and the catalytic activity kept unchanged after four continuous cycles. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/33170]  |
| 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.Xiamen Univ, Natl Engn Lab Green Chem Prod Alcohols Ethers & E, State Key Lab Phys Chem Solid Surfaces, Collaborat Innovat Ctr Chem Energy Mat,Coll Chem, Xiamen 361005, Peoples R China 2.ShanghaiTech Univ, Sch Phys Sci & Technol, Ctr High Resolut Electron Microscopy ChEM, Shanghai 201210, Peoples R China 3.Jilin Univ, Coll Chem, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130012, Peoples R China 4.Jilin Univ, Electron Microscopy Ctr, Changchun 130012, Peoples R China 5.Jilin Univ, Int Ctr Future Sci, Qianjin St 2699, Changchun 130012, Peoples R China (1 6.Jilin Univ, Inst Theoret Chem, Changchun 130023, Peoples R China 7.Dalhousie Univ, Dept Chem, Halifax, NS B3H 4R2, Canada 8.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan Ctr Magnet Resonance, Wuhan 430071, Peoples R China 9.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China 10.Chinese Acad Sci, Shanghai Adv Res Inst, Zhangjiang Natl Lab, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, QM,Wang, N,Fan, QY,et al. Subnanometer Bimetallic Platinum-Zinc Clusters in Zeolites for Propane Dehydrogenation[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2020,59(44):19450-19459. |
| APA | Sun, QM.,Wang, N.,Fan, QY.,Zeng, L.,Mayoral, A.,...&Yu, JH.(2020).Subnanometer Bimetallic Platinum-Zinc Clusters in Zeolites for Propane Dehydrogenation.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,59(44),19450-19459. |
| MLA | Sun, QM,et al."Subnanometer Bimetallic Platinum-Zinc Clusters in Zeolites for Propane Dehydrogenation".ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 59.44(2020):19450-19459. |
入库方式： OAI收割
来源：上海应用物理研究所
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