Enhancing the catalytic activity of carbon nanotubes by nitrogen doping in the selective liquid phase oxidation of benzyl alcohol

2013 ◽  
Vol 39 ◽  
pp. 44-49 ◽  
Author(s):  
Jin Luo ◽  
Feng Peng ◽  
Hongjuan Wang ◽  
Hao Yu
Keyword(s):  
Carbon Nanotubes ◽  
Catalytic Activity ◽  
Liquid Phase ◽  
Benzyl Alcohol ◽  
Nitrogen Doping ◽  
Liquid Phase Oxidation ◽  
Oxidation Of Benzyl Alcohol ◽  
Phase Oxidation

Enhancing Catalytic Activity of Mn3O4 by Selective Liquid Phase Oxidation of Benzyl Alcohol

2018 ◽  
Vol 10 (11) ◽  
pp. 1095-1099
Author(s):  
S. Narayanan ◽  
N. Mohamed Faizee ◽  
P. Paramasivam ◽  
A. Meera Moydeen ◽  
C. Ragupathi ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Liquid Phase ◽  
Benzyl Alcohol ◽  
Liquid Phase Oxidation ◽  
Oxidation Of Benzyl Alcohol ◽  
Phase Oxidation

scholarly journals Effect of Cerium Precursor in the Synthesis of Ce-MCM-41 and in the Efficiency for Liquid-Phase Oxidation of Benzyl Alcohol

Catalysts ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 377 ◽  
Author(s):  
Carlos M. Aiube ◽  
Karolyne V. de Oliveira ◽  
Julio L. de Macedo
Keyword(s):  
Catalytic Activity ◽  
Liquid Phase ◽  
Benzyl Alcohol ◽  
Heterogeneous Catalysts ◽  
Liquid Phase Oxidation ◽  
Oxidation Of Benzyl Alcohol ◽  
Metal Precursors ◽  
Phase Oxidation ◽  
First Time ◽  
Mcm 41

Understanding the effects of synthetic parameters in the catalytic activity of heterogeneous catalysts is of utmost importance when aiming for optimal reaction conditions. Hence, we disclose in this work the synthesis and characterization of cerium-modified MCM-41 materials. In addition, it was observed for the first time, differences in catalytic activity when using different cerium synthetic precursors: CeCl3·7H2O and Ce(NO3)3·6H2O (Ce-MCM-Cl and Ce-MCM-NO3, respectively). A mechanism for cerium incorporation in MCM-41 was proposed, where [Ce(OH)3] species were hydrogen bonded to silicate anions, forming framework Ce-O-Si bonds during condensation and, consequently, causing distortion of the typical hexagonal mesophase. It was also observed that Ce(OH)3 formed aggregated layers with template assemblies during synthesis, resulting in non-framework CeO2 species on the MCM-41 surface after calcination. These CeO2 species were preferentially formed for Ce-MCM-NO3 and were attributed to the nitrate ions’ strong binding to template molecules. In the solvent free liquid-phase oxidation of benzyl alcohol (BzOH), Ce-MCM-Cl achieved better BzOH conversions and benzaldehyde (BzD) yields, while Ce-MCM-NO3 offered increased BzD selectivity. The catalysts’ reusability was also studied over three catalytic runs, where Ce-MCM-NO3 was more resistant than Ce-MCM-Cl towards deactivation. The observed catalytic behavior shows the importance of metal precursors in the obtainment of materials with desirable final properties.

Effect of the Preparation Conditions of Ru/CeO2 Catalysts for the Liquid Phase Oxidation of Benzyl Alcohol

2009 ◽  
Vol 129 (3-4) ◽  
pp. 394-399 ◽  
Author(s):  
Saburo Hosokawa ◽  
Yukihiro Hayashi ◽  
Seiichiro Imamura ◽  
Kenji Wada ◽  
Masashi Inoue
Keyword(s):  
Liquid Phase ◽  
Benzyl Alcohol ◽  
Liquid Phase Oxidation ◽  
Preparation Conditions ◽  
Oxidation Of Benzyl Alcohol ◽  
Phase Oxidation

Controlling the Duality of the Mechanism in Liquid‐Phase Oxidation of Benzyl Alcohol Catalysed by Supported Au–Pd Nanoparticles

2011 ◽  
Vol 17 (23) ◽  
pp. 6524-6532 ◽  
Author(s):  
Meenakshisundaram Sankar ◽  
Ewa Nowicka ◽  
Ramchandra Tiruvalam ◽  
Qian He ◽  
Stuart H. Taylor ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Benzyl Alcohol ◽  
Pd Nanoparticles ◽  
Liquid Phase Oxidation ◽  
Oxidation Of Benzyl Alcohol ◽  
Phase Oxidation
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