التفاصيل البيبلوغرافية
| العنوان: |
Dynamic Modification of Palladium Catalysts with Chain Alkylamines for the Selective Hydrogenation of Alkynes |
| المؤلفون: |
Qian Luo (610818), Zhe Wang (41178), Yuzhuo Chen (9410515), Shanjun Mao (1554487), Kejun Wu (4800972), Kaichao Zhang (11081960), Qichuan Li (11081963), Guofeng Lv (11081966), Guodong Huang (1595956), Haoran Li (424403), Yong Wang (12837) |
| سنة النشر: |
2021 |
| المجموعة: |
Smithsonian Institution: Digital Repository |
| مصطلحات موضوعية: |
Biochemistry, Cell Biology, Biotechnology, Evolutionary Biology, Sociology, Infectious Diseases, Biological Sciences not elsewhere classified, Chemical Sciences not elsewhere classified, 2- methyl -3-butyn, Systematic studies, Chain Alkylamines, DETA-modified Pd catalyst, Dynamic Modification, DETA-modified Pd catalyst exhibits, Pd catalyst, adsorbate conditions, Lindlar catalyst, Selective Hydrogenation, alkene selectivity, chemical production, Palladium Catalysts, 20 times, Pd surface, modification strategy, adsorption behaviors, DMSI |
| الوصف: |
Selective hydrogenation of alkynes plays a pivotal role in the field of chemical production but still suffers from restrained catalytic activity and low alkene selectivity. Herein, a dynamic modification strategy was utilized by preferentially attaching diethylenetriamine (DETA) to the surface of the support to modify the Pd catalyst. The DETA-modified Pd catalyst demonstrates unprecedented reactivity (14,412 h –1 ) and selectivity as high as 94% for the semihydrogenation of 2-methyl-3-butyn-2-ol at 35 °C, presenting a 36-fold higher reactivity than the Lindlar catalyst. Moreover, the yield exceeds 98.2% at full conversion under no solvent and organic adsorbate conditions, indicating the potential applications for industrial production. Systematic studies reveal that flexible DETA serves in a reversible “breathing pattern” for the molecular discrimination by constructing dynamic metal–support interaction (DMSI), enabling selective exclusion of alkenes from the Pd surface. DETA is competent to dynamically adjust the adsorption behaviors of reactants and effectively boost the intrinsic activity of the modified catalyst. Impressively, the DETA-modified Pd catalyst exhibits exceptional stability even after being recycled 20 times. This work sheds light on a novel and applicable method for the rational design of heterogeneous catalysts via DMSI. |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
unknown |
| Relation: |
https://figshare.com/articles/journal_contribution/Dynamic_Modification_of_Palladium_Catalysts_with_Chain_Alkylamines_for_the_Selective_Hydrogenation_of_Alkynes/14915702 |
| DOI: |
10.1021/acsami.1c09682.s001 |
| الاتاحة: |
https://doi.org/10.1021/acsami.1c09682.s001 |
| Rights: |
CC BY-NC 4.0 |
| رقم الانضمام: |
edsbas.9EAF59B6 |
| قاعدة البيانات: |
BASE |