The Polymer Incarcerated Method for the Preparation of Highly Active Heterogeneous Palladium Catalysts

2003 ◽  
Vol 125 (12) ◽  
pp. 3412-3413 ◽  
Author(s):  
Ryo Akiyama ◽  
Shū Kobayashi
Keyword(s):  
Palladium Catalysts ◽  
Highly Active

scholarly journals Adsorption Behavior and Electron Structure Engineering of Pd-Based Catalysts for Acetylene Hydrochlorination

Catalysts ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 24 ◽  
Author(s):  
Yaqing Cen ◽  
Yuxue Yue ◽  
Saisai Wang ◽  
Jinyue Lu ◽  
Bolin Wang ◽  
...  
Keyword(s):  
Palladium Catalysts ◽  
Influence Factor ◽  
Catalytic Performance ◽  
Electron Structure ◽  
Acetylene Hydrochlorination ◽  
Practical Applications ◽  
Highly Active ◽  
New Strategy ◽  
Function Relationship ◽  
The Stability

Adsorption and activation for substrates and the stability of Pd species in Pd-based catalysts are imperative for their wider adoption in industrial and practical applications. However, the influence factor of these aspects has remained unclear. This indicates a need to understand the various perceptions of the structure–function relationship that exists between microstructure and catalytic performance. Herein, we revisit the catalytic performance of supported-ionic-liquid-phase stabilized Pd-based catalysts with nitrogen-containing ligands as a promoter for acetylene hydrochlorination, and try to figure out their regulation. We found that the absolute value of the differential energy, |Eads(C2H2)-Eads(HCl)|, is negative correlated with the stability of palladium catalysts. These findings imply that the optimization of the electron structure provides a new strategy for designing highly active yet durable Pd-based catalysts.

Highly Active Palladium Catalysts for Suzuki Coupling Reactions

1999 ◽  
Vol 121 (41) ◽  
pp. 9550-9561 ◽  
Author(s):  
John P. Wolfe ◽  
Robert A. Singer ◽  
Bryant H. Yang ◽  
Stephen L. Buchwald
Keyword(s):  
Palladium Catalysts ◽  
Suzuki Coupling ◽  
Coupling Reactions ◽  
Highly Active

From recovered metal waste to high-performance palladium catalysts

2017 ◽  
Vol 19 (24) ◽  
pp. 5846-5853 ◽  
Author(s):  
Khairil A. Jantan ◽  
Chuek Yee Kwok ◽  
Kuang Wen Chan ◽  
Luciano Marchiò ◽  
Andrew J. P. White ◽  
...  
Keyword(s):  
Palladium Catalysts ◽  
High Performance ◽  
Palladium Complexes ◽  
Catalytic Converters ◽  
Highly Active ◽  
Metal Waste

Molecular palladium complexes, recovered selectively from used catalytic converters, can be directly valorised as highly-active catalysts for C–H oxidative functionalisation.

ChemInform Abstract: Highly Active Palladium Catalysts for Suzuki Coupling Reactions.

ChemInform ◽  
2010 ◽  
Vol 31 (6) ◽  
pp. no-no
Author(s):  
John P. Wolfe ◽  
Robert A. Singer ◽  
Bryant H. Yang ◽  
Stephen L. Buchwald
Keyword(s):  
Palladium Catalysts ◽  
Suzuki Coupling ◽  
Coupling Reactions ◽  
Highly Active

Microencapsulated Palladium Catalysts: Pd EnCatTM

2010 ◽  
Vol 63 (5) ◽  
pp. 850 ◽  
Author(s):  
José C. Barros
Keyword(s):  
Ring Opening ◽  
Palladium Catalysts ◽  
Highly Active ◽  
Ring Opening Of Epoxides

In this manuscript some applications of microencapsulated palladium catalysts – Pd EnCatTM – are reviewed. These new catalysts are highly active, stable, easy recoverable, and could be employed in C–C coupling, hydrogenation, ring opening of epoxides between others.

scholarly journals Palladium Catalysts Based on Porous Aromatic Frameworks, Modified with Ethanolamino-Groups, for Hydrogenation of Alkynes, Alkenes and Dienes

Catalysts ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1106
Author(s):  
Leonid Kulikov ◽  
Maria Kalinina ◽  
Daria Makeeva ◽  
Anton Maximov ◽  
Yulia Kardasheva ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Palladium Catalysts ◽  
Resonance Spectroscopy ◽  
Hydroxyl Groups ◽  
Materials Properties ◽  
Highly Active ◽  
Transmission Electron ◽  
Porous Aromatic Frameworks ◽  
Synthesized Materials ◽  
Very High

The current work describes an attempt to synthesize hybrid materials combining porous aromatic frameworks (PAFs) and dendrimers and use them to obtain novel highly active and selective palladium catalysts. PAFs are carbon porous materials with rigid aromatic structure and high stability, and the dendrimers are macromolecules which can effectively stabilize metal nanoparticles and tune their activity in catalytic reactions. Two porous aromatic frameworks, PAF-20 and PAF-30, are modified step-by-step with diethanolamine and hydroxyl groups at the ends of which are replaced by new diethanolamine molecules. Then, palladium nanoparticles are applied to the synthesized materials. Properties of the obtained materials and catalysts are investigated using X-ray photoelectron spectroscopy, transmission electron microscopy, solid state nuclear magnetic resonance spectroscopy, low temperature N2 adsorption and elemental analysis. The resulting catalysts are successfully applied as an efficient and recyclable catalyst for selective hydrogenation of alkynes to alkenes at very high (up to 90,000) substrate/Pd ratios.

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