scholarly journals Raman Spectroscopy Applied to Monitor Furfural Liquid-Phase Oxidation Catalyzed by Supported Gold Nanoparticles

ACS Omega ◽  
2020 ◽  
Vol 5 (24) ◽  
pp. 14283-14290
Author(s):  
Joëlle Thuriot-Roukos ◽  
Romaissa Khadraoui ◽  
Sébastien Paul ◽  
Robert Wojcieszak
Keyword(s):  
Gold Nanoparticles ◽  
Raman Spectroscopy ◽  
Liquid Phase ◽  
Liquid Phase Oxidation ◽  
Phase Oxidation ◽  
Supported Gold Nanoparticles ◽  
Supported Gold

scholarly journals Versatility of Supported Gold Nanoparticles on Hydrotalcites used for Oxidation and Reduction Reactions

2021 ◽  
Vol 2 (1) ◽  
pp. 1-1
Author(s):  
Fabien Drault ◽  
◽  
Youssef Snoussi ◽  
Camila P. Ferraz ◽  
Joelle Thuriot-Roukos ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Direct Reduction ◽  
Chemical Transformations ◽  
Oxidation Reactions ◽  
Acid Base ◽  
Furoic Acid ◽  
Phase Oxidation ◽  
Supported Gold Nanoparticles ◽  
Aqueous Conditions ◽  
Supported Gold

Regardless of their size, supported gold nanoparticles are largely used for liquid-phase oxidation reactions. Small gold nanoparticles exhibit good performance during the reduction of organic compounds. The direct reduction of carboxylic acid to aldehyde is a famous and familiar reaction in the field of organic chemistry and is considered as one of the fundamental chemical transformations. Herein, we present Au/hydrotalcite, Au/MgO, and Au/Al2O3 systems as heterogeneous versatile catalysts to realize the oxidation of furfural (FF) to furoic acid (FA) and realize the reduction of FA to FF. Experiments showed that in standard aqueous conditions under air, FF can be easily oxidized to FA. When DMSO was used as a solvent to conduct the experiments under an atmosphere of CO2, FA was reduced to FF. The Au/HT series of catalysts was found to be active in both transformations, pointing out the versatility of the gold-based catalysts. The activity significantly depends on the acid-base properties of the catalyst.

scholarly journals Oxidation of a wood extractive betulin to biologically active oxo-derivatives using supported gold catalysts

2019 ◽  
Vol 21 (12) ◽  
pp. 3370-3382 ◽  
Author(s):  
Ekaterina N. Kolobova ◽  
Ekaterina G. Pakrieva ◽  
Sónia A. C. Carabineiro ◽  
Nina Bogdanchikova ◽  
Andrey N. Kharlanov ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Gold Catalysts ◽  
Biologically Active ◽  
Liquid Phase Oxidation ◽  
Wood Extractive ◽  
Supported Gold Catalysts ◽  
Mild Conditions ◽  
Phase Oxidation ◽  
Supported Gold

Betulin is transformed into its oxo-derivatives by liquid-phase oxidation over Au catalysts in mild conditions.

Macroporous catalysts for liquid-phase oxidation on the basis of manganese oxides containing gold nanoparticles

2010 ◽  
Vol 435 (2) ◽  
pp. 193-197 ◽  
Author(s):  
V. A. Avramenko ◽  
S. Yu. Bratskaya ◽  
P. A. Karpov ◽  
V. Yu. Mayorov ◽  
A. Yu. Mironenko ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Liquid Phase ◽  
Manganese Oxides ◽  
Liquid Phase Oxidation ◽  
Phase Oxidation

Solvent-free Liquid-phase Oxidation of 1-Hexene using Supported Gold Catalysts

ChemCatChem ◽  
2012 ◽  
Vol 4 (10) ◽  
pp. 1565-1571 ◽  
Author(s):  
Hamed Alshammari ◽  
Peter J. Miedziak ◽  
Salem Bawaked ◽  
David W. Knight ◽  
Graham J. Hutchings
Keyword(s):  
Liquid Phase ◽  
Gold Catalysts ◽  
Solvent Free ◽  
Liquid Phase Oxidation ◽  
Supported Gold Catalysts ◽  
Phase Oxidation ◽  
Supported Gold
Sign in / Sign up

Export Citation Format

Share Document