Selective liquid phase oxidation of ethyl benzene to acetophenone by palladium nanoparticles immobilized on a g-C3N4–rGO composite as a recyclable catalyst

2019 ◽  
Vol 43 (18) ◽  
pp. 6921-6931 ◽  
Author(s):  
Sheyda Nilforoushan ◽  
Mehran Ghiaci ◽  
Sayyed Mahdi Hosseini ◽  
Sophie Laurent ◽  
Robert N. Muller

A hybrid structure g-C3N4–rGO with honeycomb units was prepared for immobilizing Pd nanoparticles by a simple wet impregnation method.

2021 ◽  
Author(s):  
Subhashree Mishra ◽  
Rajaram Bal ◽  
Simon Watre Sangma ◽  
R. K. Dey

In this study, liquid phase oxidation of ethyl benzene to acetophenone was widely investigated using a new recyclable supported catalyst of CuO–nanoparticles impregnated over activated red–mud (CuO_AARM). The catalyst was...


1956 ◽  
Vol 59 (6) ◽  
pp. 654-657
Author(s):  
Akoto Kobayashi ◽  
Kazuo Sadakata ◽  
Saburo Akiyoshi

2011 ◽  
Vol 17 (23) ◽  
pp. 6524-6532 ◽  
Author(s):  
Meenakshisundaram Sankar ◽  
Ewa Nowicka ◽  
Ramchandra Tiruvalam ◽  
Qian He ◽  
Stuart H. Taylor ◽  
...  

2015 ◽  
Vol 17 (2) ◽  
pp. 43-46 ◽  
Author(s):  
David Lokhat ◽  
Mike Oliver ◽  
Milan Carsky

Abstract A series of iron oxide nanocatalysts were prepared using an ultrasonically assisted co-precipitation technique. Molybdenum promoted Fe3O4 and Fe2O3 were prepared from the original materials by wet impregnation using a solution of ammonium molybdate. The catalysts were tested in the liquid phase oxidation of benzene at atmospheric pressure and at 60°C using molecular oxygen. Phenol yields between 7% and 14.5% were obtained. The major products were pyrogallol and catechol.


2017 ◽  
Vol 6 (2) ◽  
pp. 117
Author(s):  
Rajabathar Jothiramalingam ◽  
Balasubramanian Viswanathan ◽  
Thirukkallam K. Varadarajan

Zirconium doped tunnel structure manganese oxide (OMS-2) materials were synthesized by reflux and impregnation methods by adopting suitable synthetic conditions. XRD and TGA analyses were used to<br />characterize the crystal structure and thermal stability of as synthesized zirconium doped manganese oxide OMS-2 catalysts. FT-IR and BET analyses were used to interpret the stretching frequency of corresponding functional group present in the catalysts and surface area of as synthesized catalysts. Fibrous structure and the aggregated particle morphology of zirconium doped manganese oxide OMS-2 catalysts were confirmed by TEM analyses. The synthesized catalysts were tested for liquid phase oxidation of side chain aromatic compounds such as ethyl benzene and benzyl alcohol, TBHP (tert-butyl hydrogen peroxide) as the chemical oxidant. Liquid phase oxidation ethyl benzene over zirconium doped tunnel structure manganese oxide OMS-2 catalysts show the higher substrate conversion compared to that of benzyl alcohol oxidation on as synthesized zirconium doped manganese oxide OMS-2 catalysts.


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