Role of Graphite Felt Electrode and Electron Delocalization of Cinnamate Ester in Electrochemical Hydrogenation Reaction

2021 ◽  
Author(s):  
Lingfeng He ◽  
Xinzhu Wang ◽  
Shuohao Li ◽  
Yan Zhu ◽  
Xu Cheng ◽  
...  
Keyword(s):  
Hydrogenation Reaction ◽  
Electron Delocalization ◽  
Electrochemical Hydrogenation ◽  
Graphite Felt

Transfer hydrogenation of cinnamaldehyde with 2-propanol on Al2O3 and SiO2–Al2O3 catalysts: role of Lewis and Brønsted acidic sites

2017 ◽  
Vol 7 (19) ◽  
pp. 4511-4519 ◽  
Author(s):  
Zhan-Kun Gao ◽  
Yong-Chun Hong ◽  
Zhun Hu ◽  
Bo-Qing Xu
Keyword(s):  
Hydrogenation Reaction ◽  
Transfer Hydrogenation ◽  
Catalytic Transfer Hydrogenation ◽  
Basic Sites ◽  
Acidic Sites ◽  
Catalytic Transfer ◽  
Transfer Hydrogenation Reaction

Neither surface Brønsted acidic nor basic sites are involved in the catalytic transfer hydrogenation reaction of cinnamaldehyde with 2-propanol.

scholarly journals Role of water in metal catalyst performance for ketone hydrogenation: a joint experimental and theoretical study on levulinic acid conversion into gamma-valerolactone

2014 ◽  
Vol 50 (83) ◽  
pp. 12450-12453 ◽  
Author(s):  
Carine Michel ◽  
Jérémie Zaffran ◽  
Agnieszka M. Ruppert ◽  
Joanna Matras-Michalska ◽  
Marcin Jędrzejczyk ◽  
...  
Keyword(s):  
Levulinic Acid ◽  
Theoretical Study ◽  
Hydrogenation Reaction ◽  
Ruthenium Catalyst ◽  
Metal Catalyst ◽  
Ketone Hydrogenation

Water is essential to attain good performance in a hydrogenation reaction with a ruthenium catalyst.

Carbocatalytic Acetylene Cyclotrimerization: A Key Role of Unpaired Electron Delocalization

2020 ◽  
Vol 142 (8) ◽  
pp. 3784-3796 ◽  
Author(s):  
Evgeniy G. Gordeev ◽  
Evgeniy O. Pentsak ◽  
Valentine P. Ananikov
Keyword(s):  
Unpaired Electron ◽  
Electron Delocalization

Theoretical insights into CO2 hydrogenation to methanol by a Mn–PNP complex

2019 ◽  
Vol 9 (8) ◽  
pp. 1867-1878 ◽  
Author(s):  
Shyama Charan Mandal ◽  
Kuber Singh Rawat ◽  
Surajit Nandi ◽  
Biswarup Pathak
Keyword(s):  
Hydrogenation Reaction ◽  
Co2 Hydrogenation ◽  
Co Catalyst

Unravelling the role of an amide intermediate in co-catalyst-based sequential CO2 hydrogenation reaction to methanol.

Electron delocalization in various triply linked zinc(ii) porphyrin arrays: role of antiaromatic junctions between aromatic porphyrins

2011 ◽  
Vol 13 (36) ◽  
pp. 16175 ◽  
Author(s):  
Sung Cho ◽  
Min-Chul Yoon ◽  
Kil Suk Kim ◽  
Pyosang Kim ◽  
Dongho Kim
Keyword(s):  
Electron Delocalization

scholarly journals The role of the long-range exchange corrections in the description of electron delocalization in aromatic species

2017 ◽  
Vol 38 (18) ◽  
pp. 1640-1654 ◽  
Author(s):  
Dariusz W. Szczepanik ◽  
Miquel Solà ◽  
Marcin Andrzejak ◽  
Barbara Pawełek ◽  
Justyna Dominikowska ◽  
...  
Keyword(s):  
Long Range ◽  
Electron Delocalization ◽  
Aromatic Species

Phase Transformation from Mg to MgH2 Studied by SEM Metallography

2009 ◽  
Vol 1216 ◽  
Author(s):  
Amelia Montone ◽  
Annalisa Aurora ◽  
Daniele Mirabile Gattia ◽  
Marco Vittori Antisari
Keyword(s):  
Phase Transformation ◽  
Kinetic Analysis ◽  
Hydrogenation Reaction ◽  
Hydrogen Gas ◽  
Thermodynamic Force ◽  
Different Temperatures ◽  
Lower Temperature ◽  
Experimental Findings ◽  
Kinetics Of

AbstractMetallographic information has been used to support the kinetic analysis and the relative experimental findings in the phase transformation from Mg to MgH2, by absorption of hydrogen gas. In particular the method provides detailed information on the role of localized features like catalyst particles and defects present in the sample, which is obtained from ball milled MgH2 enriched with 5wt% Fe. In this work we have compared the kinetics of the hydrogenation reaction carried out at two different temperatures while keeping constant the thermodynamic force driving the reaction. This last was achieved by carefully controlling the hydrogen gas pressure. Despite this fact, the sample microstructure shows a marked effect of the temperature on the nucleation mechanism. In particular we have noticed that the density of sites active for nucleation is higher at lower temperature.Instant nucleation deduced by the kinetic analysis was confirmed by comparing the microstructure of samples at different reaction stages.

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