Pairwise Stereoselective Hydrogenation of Propyne on Supported Pd–Ag Catalysts Investigated by Parahydrogen-Induced Polarization

2021 ◽  
Author(s):  
Weiyu Wang ◽  
Qiang Wang ◽  
Yueying Chu ◽  
Guodong Qi ◽  
Shenhui Li ◽  
...  
Keyword(s):  
Induced Polarization ◽  
Stereoselective Hydrogenation ◽  
Supported Pd ◽  
Ag Catalysts

Synthesis and characterization of Sibunit-supported Pd–Ga, Pd–Zn, and Pd–Ag catalysts for liquid-phase acetylene hydrogenation

2017 ◽  
Vol 58 (2) ◽  
pp. 140-146 ◽  
Author(s):  
D. V. Glyzdova ◽  
N. S. Smirnova ◽  
N. N. Leont’eva ◽  
E. Yu. Gerasimov ◽  
I. P. Prosvirin ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Synthesis And Characterization ◽  
Acetylene Hydrogenation ◽  
Supported Pd ◽  
Ag Catalysts

Bimetallic Supported Pd-Ag Catalysts

2015 ◽  
Vol 1085 ◽  
pp. 205-208
Author(s):  
Ivan S. Bondarchuk ◽  
Grigory V. Mamontov ◽  
Francisco J. Cadete Santos Aires ◽  
Irina A. Kurzina
Keyword(s):  
High Temperature ◽  
Strong Interaction ◽  
Simultaneous Reduction ◽  
Ag Particles ◽  
Supported Pd ◽  
Ag Catalysts

Series of Pd-Ag/SiO2, Pd/CeO2 and Pd-Ag/CeO2 catalysts with different Pd/Ag ration were synthesized and investigated. It was shown that simultaneous reduction of Pd and Ag took place for Pd-Ag/SiO2 and Pd Ag/CeO2 catalysts during TPR-H2. That may be associated with formation of bimetallic Pd-Ag particles. The high temperature of Pd reduction was observed for Pd/CeO2 and Pd-Ag/CeO2 catalysts. That was associated with strong interaction of PdO with CeO2 or formation of mixed PdxCeO2-δ phase.

Heterogeneous addition of H2 to double and triple bonds over supported Pd catalysts: a parahydrogen-induced polarization technique study

2012 ◽  
Vol 14 (31) ◽  
pp. 11008 ◽  
Author(s):  
Kirill V. Kovtunov ◽  
Irene E. Beck ◽  
Vladimir V. Zhivonitko ◽  
Danila A. Barskiy ◽  
Valery I. Bukhtiyarov ◽  
...  
Keyword(s):  
Induced Polarization ◽  
Pd Catalysts ◽  
Triple Bonds ◽  
Supported Pd Catalysts ◽  
Polarization Technique ◽  
Supported Pd

Alumina-supported Pd, Ag and Pd–Ag catalysts: Preparation through the polyol process, characterization and reactivity in hexa-1,5-diene hydrogenation

1998 ◽  
Vol 172 (2) ◽  
pp. 273-283 ◽  
Author(s):  
Emerson Andrade Sales ◽  
Béatrice Benhamida ◽  
Virginie Caizergues ◽  
Jean-Pierre Lagier ◽  
Fernand Fiévet ◽  
...  
Keyword(s):  
Polyol Process ◽  
Process Characterization ◽  
Catalysts Preparation ◽  
Supported Pd ◽  
Ag Catalysts

Catalytic CO oxidation over pumice supported Pd–Ag catalysts

2001 ◽  
Vol 211 (2) ◽  
pp. 167-174 ◽  
Author(s):  
A.M Venezia ◽  
L.F Liotta ◽  
G Deganello ◽  
Z Schay ◽  
D Horváth ◽  
...  
Keyword(s):  
Co Oxidation ◽  
Catalytic Co Oxidation ◽  
Supported Pd ◽  
Ag Catalysts

Lateral Adsorbate Interactions Inhibit HCOO- While Promoting CO Selectivity for CO2 Electrocatalysis on Ag

2018 ◽  
Author(s):  
Divya Bohra ◽  
Isis Ledezma-Yanez ◽  
Guanna Li ◽  
Wiebren De Jong ◽  
Evgeny A. Pidko ◽  
...  
Keyword(s):  
Electrochemical Reduction ◽  
Experimental Approach ◽  
Decisive Role ◽  
Experimental Methods ◽  
Reaction Intermediates ◽  
Intermediate Species ◽  
Experimental Knowledge ◽  
Complex Interactions ◽  
Ag Catalysts

<p>The analysis presented in this manuscript helps bridge an important fundamental discrepancy between the existing theoretical and experimental knowledge regarding the performance of Ag catalysts for CO<sub>2</sub> electrochemical reduction (CO<sub>2</sub>ER). The results demonstrate how the intermediate species *OCHO is formed readily en-route the HCOO<sup>– </sup>pathway and plays a decisive role in determining selectivity of a predominantly CO producing catalyst such as Ag. Our theoretical and experimental approach develops a better understanding of the nature of competition as well as the complex interactions between the reaction intermediates leading to CO, HCOO<sup>–</sup> and H<sub>2</sub> during CO<sub>2</sub>ER.</p><p><br></p><p>Details of computational and experimental methods are present in the Supporting Information provided. </p><p><br></p><p><br></p>

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