Selectivity Control in Alkylidene Carbene-Mediated C−H Insertion and Allene Formation

2011 ◽  
Vol 76 (4) ◽  
pp. 1086-1099 ◽  
Author(s):  
Jun-Cheng Zheng ◽  
Sang Young Yun ◽  
Chunrui Sun ◽  
Nam-Kyu Lee ◽  
Daesung Lee
Keyword(s):  
Alkylidene Carbene ◽  
Selectivity Control

Approaching full-range selectivity control in CO2 hydrogenation to methanol and carbon monoxide with catalyst composition regulation

2021 ◽  
Author(s):  
Libo Yao ◽  
Yanbo Pan ◽  
Dezhen Wu ◽  
Jialu Li ◽  
Rongxuan Xie ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Full Range ◽  
Co2 Hydrogenation ◽  
Catalyst Composition ◽  
Selectivity Control

P-Modified In2O3 with composition regulation for approaching full-range selectivity control in CO2 hydrogenation to methanol and carbon monoxide.

scholarly journals Selectivity control in Pt-catalyzed cinnamaldehyde hydrogenation

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Lee J. Durndell ◽  
Christopher M. A. Parlett ◽  
Nicole S. Hondow ◽  
Mark A. Isaacs ◽  
Karen Wilson ◽  
...  
Keyword(s):  
Cinnamaldehyde Hydrogenation ◽  
Selectivity Control ◽  
Pt Catalyzed

Gas Selectivity Control in Co3O4 Sensor via Concurrent Tuning of Gas Reforming and Gas Filtering using Nanoscale Hetero-Overlayer of Catalytic Oxides

2017 ◽  
Vol 9 (47) ◽  
pp. 41397-41404 ◽  
Author(s):  
Hyun-Mook Jeong ◽  
Seong-Yong Jeong ◽  
Jae-Hyeok Kim ◽  
Bo-Young Kim ◽  
Jun-Sik Kim ◽  
...  
Keyword(s):  
Gas Selectivity ◽  
Selectivity Control

scholarly journals Selectivity control in hydrogenation through adaptive catalysis using ruthenium nanoparticles on a CO2-responsive support

2021 ◽  
Author(s):  
Alexis Bordet ◽  
Sami El Sayed ◽  
Matthew Sanger ◽  
Kyle J. Boniface ◽  
Deepti Kalsi ◽  
...  
Keyword(s):  
Real Time ◽  
Carbonyl Group ◽  
Catalytic Reaction ◽  
Renewable Resources ◽  
Gas Composition ◽  
Ruthenium Nanoparticles ◽  
Catalytic Systems ◽  
Amine Functionalized ◽  
Hydrogenation Reactions ◽  
Selectivity Control

AbstractWith the advent of renewable carbon resources, multifunctional catalysts are becoming essential to hydrogenate selectively biomass-derived substrates and intermediates. However, the development of adaptive catalytic systems, that is, with reversibly adjustable reactivity, able to cope with the intermittence of renewable resources remains a challenge. Here, we report the preparation of a catalytic system designed to respond adaptively to feed gas composition in hydrogenation reactions. Ruthenium nanoparticles immobilized on amine-functionalized polymer-grafted silica act as active and stable catalysts for the hydrogenation of biomass-derived furfural acetone and related substrates. Hydrogenation of the carbonyl group is selectively switched on or off if pure H2 or a H2/CO2 mixture is used, respectively. The formation of alkylammonium formate species by the catalytic reaction of CO2 and H2 at the amine-functionalized support has been identified as the most likely molecular trigger for the selectivity switch. As this reaction is fully reversible, the catalyst performance responds almost in real time to the feed gas composition.

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