Mechanism and active sites for the partial oxidation of methanol to formaldehyde over an electrolytic silver catalyst

2004 ◽  
Vol 265 (1) ◽  
pp. 85-101 ◽  
Author(s):  
Geoffrey I.N. Waterhouse ◽  
Graham A. Bowmaker ◽  
James B. Metson
Keyword(s):  
Partial Oxidation ◽  
Active Sites ◽  
Silver Catalyst ◽  
Oxidation Of Methanol ◽  
Partial Oxidation Of Methanol ◽  
Electrolytic Silver

scholarly journals Effect of Mo Dispersion on the Catalytic Properties and Stability of Mo–Fe Catalysts for the Partial Oxidation of Methanol

Molecules ◽  
2020 ◽  
Vol 25 (10) ◽  
pp. 2410
Author(s):  
Shuai Zhang ◽  
Minghan Han
Keyword(s):  
Surface Layer ◽  
Surface Area ◽  
Partial Oxidation ◽  
Active Sites ◽  
Oxygen Vacancies ◽  
Catalyst Surface ◽  
Catalytic Properties ◽  
Oxidation Of Methanol ◽  
Partial Oxidation Of Methanol ◽  
Fe Catalysts

Mo–Fe catalysts with different Mo dispersions were synthesized with fast (Cat-FS, 600 r·min−1) or slow stirring speed (Cat-SS, 30 r·min−1) by the coprecipitation method. Improving the stirring speed strengthened the mixing of the solution and increased the dispersion of particles in the catalyst, which exhibited favorable activity and selectivity. The byproduct (dimethyl ether (DME)) selectivity increased from 2.3% to 2.8% with Cat-SS, while it remained unchanged with Cat-FS in a stability test. The aggregation of particles and thin Mo-enriched surface layer decreased the catalyst surface area and slowed down the reoxidation of reduced active sites with Cat-SS, leaving more oxygen vacancies which promoted the formation of DME by the nonoxidative channel.

scholarly journals Niobium-substituted octahedral molecular sieve (OMS-2) materials in selective oxidation of methanol to dimethoxymethane

RSC Advances ◽  
2019 ◽  
Vol 9 (56) ◽  
pp. 32665-32673 ◽  
Author(s):  
Niluka D. Wasalathanthri ◽  
Curtis Guild ◽  
Quddus A. Nizami ◽  
Shanka L. Dissanayake ◽  
Junkai He ◽  
...  
Keyword(s):  
Selective Oxidation ◽  
Partial Oxidation ◽  
Temperature Regime ◽  
Molecular Sieve ◽  
Active Sites ◽  
Promising Candidate ◽  
Oxidation Of Methanol ◽  
Partial Oxidation Of Methanol ◽  
Lower Temperature

The prepared bifunctional Nb-OMS-2 catalysts are promising candidate in partial oxidation of methanol into dimethoxymethane at a lower temperature suggesting that there is an important temperature regime when forming active sites for DMM production.

scholarly journals Near-Surface Imaging of the Multicomponent Gas Phase above a Silver Catalyst during Partial Oxidation of Methanol

ACS Catalysis ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 155-168
Author(s):  
Bo Zhou ◽  
Erxiong Huang ◽  
Raybel Almeida ◽  
Sadi Gurses ◽  
Alexander Ungar ◽  
...  
Keyword(s):  
Gas Phase ◽  
Partial Oxidation ◽  
Surface Imaging ◽  
Silver Catalyst ◽  
Near Surface ◽  
Oxidation Of Methanol ◽  
Partial Oxidation Of Methanol ◽  
Multicomponent Gas

Modulation of the selectivity in partial oxidation of methanol over CuZnAl catalysts by adding CO 2 and/or H 2 into the reaction feed

2015 ◽  
Vol 168-169 ◽  
pp. 14-24 ◽  
Author(s):  
Silvia R. González Carrazán ◽  
Robert Wojcieszak ◽  
Raquel. M. Blanco ◽  
Cecilia Mateos-Pedrero ◽  
Patricio Ruiz
Keyword(s):  
Partial Oxidation ◽  
Oxidation Of Methanol ◽  
Partial Oxidation Of Methanol
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