Effect of alkali metal added to supported La catalysts on the catalytic activity in the gas-phase catalytic oxidation of benzyl alcohol

2004 ◽  
Vol 211 (1-2) ◽  
pp. 219-226 ◽  
Author(s):  
M Furukawa
Keyword(s):  
Catalytic Activity ◽  
Alkali Metal ◽  
Benzyl Alcohol ◽  
Catalytic Oxidation ◽  
Gas Phase ◽  
Oxidation Of Benzyl Alcohol

Promotion Effect of Alkali Metal Added to Impregnated Cobalt Catalysts in the Gas-Phase Catalytic Oxidation of Benzyl Alcohol

2004 ◽  
Vol 43 (19) ◽  
pp. 6021-6026 ◽  
Author(s):  
Yonghao Li ◽  
Daisuke Nakashima ◽  
Yuichi Ichihashi ◽  
Satoru Nishiyama ◽  
Shigeru Tsuruya
Keyword(s):  
Alkali Metal ◽  
Benzyl Alcohol ◽  
Catalytic Oxidation ◽  
Gas Phase ◽  
Cobalt Catalysts ◽  
Promotion Effect ◽  
Oxidation Of Benzyl Alcohol

Promoted partial oxidation activity of supported Ag catalysts in the gas-phase catalytic oxidation of benzyl alcohol

2005 ◽  
Vol 234 (2) ◽  
pp. 308-317 ◽  
Author(s):  
R YAMAMOTO ◽  
Y SAWAYAMA ◽  
H SHIBAHARA ◽  
Y ICHIHASHI ◽  
S NISHIYAMA ◽  
...  
Keyword(s):  
Benzyl Alcohol ◽  
Catalytic Oxidation ◽  
Gas Phase ◽  
Partial Oxidation ◽  
Oxidation Activity ◽  
Oxidation Of Benzyl Alcohol ◽  
Ag Catalysts

scholarly journals Influence of Co-Precipitation Agent on the Structure, Texture and Catalytic Activity of Au-CeO2 Catalysts in Low-Temperature Oxidation of Benzyl Alcohol

Catalysts ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 641
Author(s):  
Lukasz Wolski ◽  
Grzegorz Nowaczyk ◽  
Stefan Jurga ◽  
Maria Ziolek
Keyword(s):  
Gold Nanoparticles ◽  
Catalytic Activity ◽  
Low Temperature ◽  
Benzyl Alcohol ◽  
Low Temperature Oxidation ◽  
Temperature Oxidation ◽  
Oxidation Of Benzyl Alcohol ◽  
Key Factor ◽  
Au Particle Size ◽  
Co Precipitation

The aim of the study was to establish the influence of a co-precipitation agent (i.e., NaOH–immediate precipitation; hexamethylenetetramine/urea–gradual precipitation and growth of nanostructures) on the properties and catalytic activity of as-synthesized Au-CeO2 nanocomposites. All catalysts were fully characterized with the use of XRD, nitrogen physisorption, ICP-OES, SEM, HR-TEM, UV-vis, XPS, and tested in low-temperature oxidation of benzyl alcohol as a model oxidation reaction. The results obtained in this study indicated that the type of co-precipitation agent has a significant impact on the growth of gold species. Immediate co-precipitation of Au-CeO2 nanostructures with the use of NaOH allowed obtainment of considerably smaller and more homogeneous in size gold nanoparticles than those formed by gradual co-precipitation and growth of Au-CeO2 nanostructures in the presence of hexamethylenetetramine or urea. In the catalytic tests, it was established that the key factor promoting high activity in low-temperature oxidation of benzyl alcohol was size of gold nanoparticles. The highest conversion of the alcohol was observed for the catalyst containing the smallest Au particle size (i.e., Au-CeO2 nanocomposite prepared with the use of NaOH as a co-precipitation agent).

Sign in / Sign up

Export Citation Format

Share Document