A rational design of a Pd-based catalyst with a metal–metal oxide interface influencing molecular oxygen in the aerobic oxidation of alcohols

2019 ◽  
Vol 21 (9) ◽  
pp. 2494-2503 ◽  
Author(s):  
Songhita Meher ◽  
Rohit Kumar Rana
Keyword(s):  
Catalytic Activity ◽  
Metal Oxide ◽  
Molecular Oxygen ◽  
Rational Design ◽  
Aerobic Oxidation ◽  
Oxide Interface ◽  
Metal Metal ◽  
Oxidation Of Alcohols

The Pd–PdO interface stabilized on the rGO surface is shown to be the key to achieve enhanced catalytic activity in oxidation of alcohols under O2 as the oxidant.

Tuning the CO oxidation catalytic activity of supported metal–metal oxide heterostructures by an aqueous phase post-treatment process

2016 ◽  
Vol 4 (46) ◽  
pp. 18075-18083 ◽  
Author(s):  
Chunzheng Wu ◽  
Rosaria Brescia ◽  
Mirko Prato ◽  
Sergio Marras ◽  
Liberato Manna ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
High Temperature ◽  
Metal Oxide ◽  
Co Oxidation ◽  
Treatment Process ◽  
Oxide Interface ◽  
Oxide Heterostructures ◽  
Metal Metal ◽  
Ligand Free ◽  
Post Treatment Process

Colloidal Au–MnO heterodimers were deposited on SiO2 and calcined at high temperature in air in order to prepare a ligand-free Au–Mn3O4/SiO2 model catalyst for CO oxidation with a well-defined Au size and Au–metal oxide interface.

Surface to bulk charge transfer at an alkali metal/metal oxide interface

2003 ◽  
Vol 547 (1-2) ◽  
pp. L859-L864 ◽  
Author(s):  
R Lindsay ◽  
E Michelangeli ◽  
B.G Daniels ◽  
M Polcik ◽  
A Verdini ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Alkali Metal ◽  
Metal Oxide ◽  
Oxide Interface ◽  
Metal Metal ◽  
Bulk Charge

scholarly journals Novel Effect of Zinc Nitrate/Vanadyl Oxalate for Selective Catalytic Oxidation of α-Hydroxy Esters to α-Keto Esters with Molecular Oxygen: An In Situ ATR-IR Study

Molecules ◽  
2019 ◽  
Vol 24 (7) ◽  
pp. 1281 ◽  
Author(s):  
Yongwei Ju ◽  
Zhongtian Du ◽  
Chuhong Xiao ◽  
Xingfei Li ◽  
Shuang Li
Keyword(s):  
Catalytic Activity ◽  
Catalytic Oxidation ◽  
Molecular Oxygen ◽  
Aerobic Oxidation ◽  
Value Added ◽  
Attenuated Total Reflection ◽  
Reaction Conditions ◽  
Keto Esters ◽  
Selective Catalytic Oxidation ◽  
Hydroxy Esters

Selective oxidation of α-hydroxy esters is one of the most important methods to prepare high value-added α-keto esters. An efficient catalytic system consisting of Zn(NO3)2/VOC2O4 is reported for catalytic oxidation of α-hydroxy esters with molecular oxygen. Up to 99% conversion of methyl DL-mandelate or methyl lactate could be facilely obtained with high selectivity for its corresponding α-keto ester under mild reaction conditions. Zn(NO3)2 exhibited higher catalytic activity in combination with VOC2O4 compared with Fe(NO3)3 and different nitric oxidative gases were detected by situ attenuated total reflection infrared (ATR-IR) spectroscopy. UV-vis and ATR-IR results indicated that coordination complex formed in Zn(NO3)2 in CH3CN solution was quite different from Fe(NO3)3; it is proposed that the charge-transfer from Zn2+ to coordinated nitrate groups might account for the generation of different nitric oxidative gases. The XPS result indicate that nitric oxidative gas derived from the interaction of Zn(NO3)2 with VOC2O4 could be in favor of oxidizing VOC2O4 to generate active vanadium (V) species. It might account for different catalytic activity of Zn(NO3)2 or Fe(NO3)3 combined with VOC2O4. This work contributes to further development of efficient aerobic oxidation under mild reaction conditions.

Modified Markó’s aerobic oxidation of alcohols under atmospheric pressure with air or molecular oxygen at room temperature

2012 ◽  
Vol 53 (44) ◽  
pp. 5880-5882 ◽  
Author(s):  
Takeshi Nishii ◽  
Tomomi Ouchi ◽  
Aya Matsuda ◽  
Yuka Matsubara ◽  
Yuuko Haraguchi ◽  
...  
Keyword(s):  
Molecular Oxygen ◽  
Atmospheric Pressure ◽  
Room Temperature ◽  
Aerobic Oxidation ◽  
Oxidation Of Alcohols

Transition metal/metal oxide modified MCM-41 for pollutant degradation and hydrogen energy production: a review

RSC Advances ◽  
2015 ◽  
Vol 5 (102) ◽  
pp. 83707-83724 ◽  
Author(s):  
Dipti Prava Sahoo ◽  
Dharitri Rath ◽  
Binita Nanda ◽  
K. M. Parida
Keyword(s):  
Catalytic Activity ◽  
Metal Oxide ◽  
Energy Production ◽  
High Surface ◽  
High Surface Area ◽  
Hydrogen Energy ◽  
Pollutant Degradation ◽  
Metal Metal ◽  
Catalytic Applications ◽  
Mcm 41

Metal/metal oxide modified MCM-41 materials are suitable for various catalytic applications. The high surface area, mesoscopic pore size and tunable pore volume of the materials play a key role in enhancing the catalytic activity.

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