Amorphous oxide as a novel efficient catalyst for direct selective oxidation of methanol to dimethoxymethane

2008 ◽  
pp. 865-867 ◽  
Author(s):  
Sébastien Royer ◽  
Xavier Sécordel ◽  
Markus Brandhorst ◽  
Franck Dumeignil ◽  
Sylvain Cristol ◽  
...  
Keyword(s):  
Selective Oxidation ◽  
Efficient Catalyst ◽  
Amorphous Oxide ◽  
Oxidation Of Methanol

Active site densities, oxygen activation and adsorbed reactive oxygen in alcohol activation on npAu catalysts

2016 ◽  
Vol 188 ◽  
pp. 57-67 ◽  
Author(s):  
Lu-Cun Wang ◽  
C. M. Friend ◽  
Rebecca Fushimi ◽  
Robert J. Madix
Keyword(s):  
Selective Oxidation ◽  
Activation Barrier ◽  
Initial Step ◽  
Temporal Analysis ◽  
Adsorbed Oxygen ◽  
Transient Pressure ◽  
Pulse Reaction ◽  
Dissociation Probability ◽  
Oxidation Of Methanol ◽  
Oxygen Atoms

The activation of molecular O2 as well as the reactivity of adsorbed oxygen species is of central importance in aerobic selective oxidation chemistry on Au-based catalysts. Herein, we address the issue of O2 activation on unsupported nanoporous gold (npAu) catalysts by applying a transient pressure technique, a temporal analysis of products (TAP) reactor, to measure the saturation coverage of atomic oxygen, its collisional dissociation probability, the activation barrier for O2 dissociation, and the facility with which adsorbed O species activate methanol, the initial step in the catalytic cycle of esterification. The results from these experiments indicate that molecular O2 dissociation is associated with surface silver, that the density of reactive sites is quite low, that adsorbed oxygen atoms do not spill over from the sites of activation onto the surrounding surface, and that methanol reacts quite facilely with the adsorbed oxygen atoms. In addition, the O species from O2 dissociation exhibits reactivity for the selective oxidation of methanol but not for CO. The TAP experiments also revealed that the surface of the npAu catalyst is saturated with adsorbed O under steady state reaction conditions, at least for the pulse reaction.

Au‐Promoted Pt nanoparticles supported on MgO / SBA ‐15 as an efficient catalyst for selective oxidation of glycerol

AIChE Journal ◽  
2021 ◽  
Author(s):  
Yibin Liu ◽  
Minghao Zha ◽  
Hansong Qin ◽  
Shuang Yao ◽  
Xin Zhou ◽  
...  
Keyword(s):  
Selective Oxidation ◽  
Pt Nanoparticles ◽  
Efficient Catalyst

CuO/TiO2 heterojunction composites: an efficient photocatalyst for selective oxidation of methanol to methyl formate

2019 ◽  
Vol 7 (5) ◽  
pp. 2253-2260 ◽  
Author(s):  
Quanquan Shi ◽  
Guicheng Ping ◽  
Xiaojia Wang ◽  
Hui Xu ◽  
Jingmei Li ◽  
...  
Keyword(s):  
Selective Oxidation ◽  
Methyl Formate ◽  
Photo Oxidation ◽  
Oxidation Of Methanol

This study demonstrates the synthesis of an efficient photocatalyst, CuO/TiO2 heterojunction, for selective aerobic photo-oxidation of methanol to methyl formate.

On the mechanism of the selective oxidation of methanol over elemental silver

1994 ◽  
Vol 28 (2-4) ◽  
pp. 383-395 ◽  
Author(s):  
H. Schubert ◽  
U. Tegtmeyer ◽  
R. Schl�gl
Keyword(s):  
Selective Oxidation ◽  
Oxidation Of Methanol ◽  
Elemental Silver

Surfactant-free Pd@pSiO2 yolk–shell nanocatalysts for selective oxidation of primary alcohols to aldehydes

2015 ◽  
Vol 39 (10) ◽  
pp. 8153-8157 ◽  
Author(s):  
Aram Kim ◽  
Hee Seon Bae ◽  
Ji Chan Park ◽  
Hyunjoon Song ◽  
Kang Hyun Park
Keyword(s):  
Selective Oxidation ◽  
Primary Alcohols ◽  
Shell Nanoparticles ◽  
Efficient Catalyst ◽  
Benzyl Alcohols

The surfactant-free Pd@pSiO2 yolk–shell nanoparticles proved to be an efficient catalyst for the oxidation of substituted benzyl alcohols.

Pd nanoparticles on carbon layer wrapped 3D TiO2 as efficient catalyst for selective oxidation of benzyl alcohol

2018 ◽  
Vol 712 ◽  
pp. 149-154
Author(s):  
Yifei Wu ◽  
Yuejia Sun ◽  
Wenyao Guo ◽  
Zhiliang Zhao ◽  
Shuo Niu ◽  
...  
Keyword(s):  
Benzyl Alcohol ◽  
Selective Oxidation ◽  
Pd Nanoparticles ◽  
Carbon Layer ◽  
Efficient Catalyst ◽  
Oxidation Of Benzyl Alcohol

Highly Selective Oxidation Monosaccharides to Sugar Acids at Room Temperature over Palladium Supported on Surface Functionalized Carbon Nanotubes

2021 ◽  
Author(s):  
Zengyong Li ◽  
Di Li ◽  
Wu Lan ◽  
Xuehui Li ◽  
Xiaofang Wan ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Selective Oxidation ◽  
Room Temperature ◽  
Efficient Catalyst ◽  
Functionalized Carbon Nanotubes

Selective oxidation of monosaccharides into sugar acids is an important reaction for the production of biomass-based chemicals, but the design of efficient catalyst remains a big challenge. Herein, we report...

Co-Electrospun VTiOx Hollow Nanofibers for Selective Oxidation of Methanol to High Value Chemicals

2019 ◽  
Vol 2 (8) ◽  
pp. 5224-5232 ◽  
Author(s):  
Chunlei Zhang ◽  
Ping Wu ◽  
Guojuan Liu ◽  
Zhigao Zhu ◽  
Gaofeng Zeng
Keyword(s):  
Selective Oxidation ◽  
Hollow Nanofibers ◽  
Oxidation Of Methanol
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