Palladium Nanoparticles Supported on Exfoliated g-C3N4 as Efficient Catalysts for Selective Oxidation of Benzyl Alcohol by Molecular Oxygen

2021 ◽  
Author(s):  
Xin-Tong Yi ◽  
Tong Zhao ◽  
Fei Wang ◽  
Jie Xu ◽  
Bing Xue
Keyword(s):  
Liquid Phase ◽  
Metal Nanoparticles ◽  
Benzyl Alcohol ◽  
Molecular Oxygen ◽  
Selective Oxidation ◽  
Noble Metal ◽  
Palladium Nanoparticles ◽  
Noble Metal Nanoparticles ◽  
Oxidation Of Benzyl Alcohol ◽  
Oxidation Of Alcohols

Liquid-phase selective oxidation of alcohols using molecular oxygen as an oxidant is a promising and sustainable strategy for the manufacture of aldehydes or ketones. The supported noble metal nanoparticles have...

scholarly journals Polyethyleneimine-Oleic Acid Micelles-Stabilized Palladium Nanoparticles as Highly Efficient Catalyst to Treat Pollutants with Enhanced Performance

Polymers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1890
Author(s):  
Xiang Lai ◽  
Xuan Zhang ◽  
Shukai Li ◽  
Jie Zhang ◽  
Weifeng Lin ◽  
...  
Keyword(s):  
Oleic Acid ◽  
Metal Nanoparticles ◽  
Noble Metal ◽  
Palladium Nanoparticles ◽  
Human Life ◽  
Catalytic Performance ◽  
Water Soluble ◽  
Noble Metal Nanoparticles ◽  
Hydrodynamic Diameter ◽  
Efficient Catalyst

Water soluble organic molecular pollution endangers human life and health. It becomes necessary to develop highly stable noble metal nanoparticles without aggregation in solution to improve their catalytic performance in treating pollution. Polyethyleneimine (PEI)-based stable micelles have the potential to stabilize noble metal nanoparticles due to the positive charge of PEI. In this study, we synthesized the amphiphilic PEI-oleic acid molecule by acylation reaction. Amphiphilic PEI-oleic acid assembled into stable PEI-oleic acid micelles with a hydrodynamic diameter of about 196 nm and a zeta potential of about 34 mV. The PEI-oleic acid micelles-stabilized palladium nanoparticles (PO-PdNPsn) were prepared by the reduction of sodium tetrachloropalladate using NaBH4 and the palladium nanoparticles (PdNPs) were anchored in the hydrophilic layer of the micelles. The prepared PO-PdNPsn had a small size for PdNPs and good stability in solution. Noteworthily, PO-PdNPs150 had the highest catalytic activity in reducing 4-nitrophenol (4-NP) (Knor = 18.53 s−1mM−1) and oxidizing morin (Knor = 143.57 s−1M−1) in aqueous solution than other previous catalysts. The enhanced property was attributed to the improving the stability of PdNPs by PEI-oleic acid micelles. The method described in this report has great potential to prepare many kinds of stable noble metal nanoparticles for treating aqueous pollution.

Gas-Phase Selective Oxidation of Benzyl Alcohol to Benzaldehyde with Molecular Oxygen over Unsupported Nanoporous Gold

ChemCatChem ◽  
2010 ◽  
Vol 2 (4) ◽  
pp. 383-386 ◽  
Author(s):  
Dongqing Han ◽  
Tingting Xu ◽  
Jixin Su ◽  
Xiaohong Xu ◽  
Yi Ding
Keyword(s):  
Benzyl Alcohol ◽  
Gas Phase ◽  
Molecular Oxygen ◽  
Selective Oxidation ◽  
Nanoporous Gold ◽  
Oxidation Of Benzyl Alcohol

Fe3O4/PANI/m-SiO2 as robust reactive catalyst supports for noble metal nanoparticles with improved stability and recyclability

2014 ◽  
Vol 2 (32) ◽  
pp. 13016-13023 ◽  
Author(s):  
Jie Han ◽  
Song Lu ◽  
Chenjing Jin ◽  
Minggui Wang ◽  
Rong Guo
Keyword(s):  
Liquid Phase ◽  
Metal Nanoparticles ◽  
Noble Metal ◽  
High Stability ◽  
Noble Metal Nanoparticles ◽  
Catalyst Supports ◽  
Hybrid Catalysts ◽  
Improved Stability

Fe3O4/PANI/Au/m-SiO2 hybrid catalysts have been demonstrated that have high stability and recyclability in liquid phase reactions.

Nanostructured MnO catalysts in the liquid phase selective oxidation of benzyl alcohol with oxygen

2015 ◽  
Vol 170-171 ◽  
pp. 233-240 ◽  
Author(s):  
Francesco Arena ◽  
Bianca Gumina ◽  
Catia Cannilla ◽  
Lorenzo Spadaro ◽  
Antonio Patti ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Benzyl Alcohol ◽  
Selective Oxidation ◽  
Oxidation Of Benzyl Alcohol
Sign in / Sign up

Export Citation Format

Share Document