scholarly journals Controlled microwave-assisted synthesis of nanoparticles and their catalytic activity for O-acylation of alcohol and phenol in acetic anhydride

2012 ◽  
Vol 19 (6) ◽  
pp. 1597-1600 ◽  
Author(s):  
F. Matloubi Moghaddam ◽  
M. Doulabi ◽  
H. Saeidian
Keyword(s):  
Catalytic Activity ◽  
Acetic Anhydride ◽  
Microwave Assisted Synthesis ◽  
Synthesis Of Nanoparticles ◽  
Microwave Assisted

Highly dispersed and disordered nickel–iron layered hydroxides and sulphides: robust and high-activity water oxidation catalysts

2018 ◽  
Vol 2 (7) ◽  
pp. 1561-1573 ◽  
Author(s):  
Manjunath Chatti ◽  
Alexey M. Glushenkov ◽  
Thomas Gengenbach ◽  
Gregory P. Knowles ◽  
Tiago C. Mendes ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Low Temperature ◽  
High Activity ◽  
Water Oxidation ◽  
Microwave Assisted Synthesis ◽  
Oxidation Catalysts ◽  
Alkaline Water ◽  
Nickel Iron ◽  
Microwave Assisted ◽  
Highly Dispersed

A rapid low-temperature microwave-assisted synthesis of nickel(iron) layered hydroxides and sulphides that exhibit robust catalytic activity for electrooxidation of alkaline water is introduced.

Microwave-assisted synthesis of Ce-doped ZnO/CNT composite with enhanced photo-catalytic activity

2017 ◽  
Vol 43 (1) ◽  
pp. 84-91 ◽  
Author(s):  
Md. Elias ◽  
Md. Khairul Amin ◽  
Shakhawat H. Firoz ◽  
Md. Asjad Hossain ◽  
Sonia Akter ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Microwave Assisted Synthesis ◽  
Photo Catalytic Activity ◽  
Microwave Assisted ◽  
Doped Zno

Microwave assisted synthesis of substituted metallophthalocyanines and their catalytic activity in epoxidation reaction

2005 ◽  
Vol 09 (03) ◽  
pp. 163-169 ◽  
Author(s):  
Farzad Bahadoran ◽  
Solmaz Dialameh
Keyword(s):  
Catalytic Activity ◽  
Reaction Time ◽  
Microwave Irradiation ◽  
Microwave Assisted Synthesis ◽  
Free Condition ◽  
Catalytic Activities ◽  
Microwave Assisted ◽  
Solvent Free Condition ◽  
Epoxidation Reaction ◽  
Phthalocyanine Ring

Substituted iron and cobalt phthalocyanines are easily prepared by microwave irradiation of the starting materials under solvent free condition, which reduced reaction time considerably. The synthesized metallophthalocyanines (octachloro-, tetranitro-, tetracarboxy- or polyphthalocyanine) are used as epoxidation catalysts of cyclooctene in homogeneous and heterogeneous conditions by iodosylbenzene as an oxidant. Their catalytic activities have shown that the electron withdrawing groups on the phthalocyanine ring have a very small effect on stability of the catalyst during the reactions.

On the microwave-assisted synthesis of acylphenothiazine derivatives — Experiment versus theory synergism

2010 ◽  
Vol 88 (1) ◽  
pp. 42-49 ◽  
Author(s):  
Luiza Gaina ◽  
Dan Porumb ◽  
Ioan Silaghi-Dumitrescu ◽  
Castelia Cristea ◽  
Luminita Silaghi-Dumitrescu
Keyword(s):  
Molecular Modeling ◽  
Acetic Anhydride ◽  
Dft Calculations ◽  
Theoretical Explanation ◽  
Microwave Assisted Synthesis ◽  
Phenothiazine Derivatives ◽  
Microwave Assisted ◽  
Experiment Versus ◽  
Semi Empirical ◽  
Acylation Reactions

The microwave-assisted synthesis of a series of acylphenothiazine derivatives is described. 10H-Phenothiazine-3-carbaldehyde derivatives were obtained in moderate yields by the Duff formylation reaction, and 10-acetyl-phenothiazine derivatives were obtained in excellent yields by acetylating phenothiazine derivatives with acetic anhydride. A theoretical explanation for the chemoselectivity and regioselectivity of these acylation reactions applied to phenothiazine substrates was attempted by molecular-modeling analyses based on molecular mechanics, and semi-empirical and DFT calculations.

Microwave-Assisted Synthesis of Ni/CNTs Nanocomposites for Hydrogen Production from Hydrolysis of NaBH4

2012 ◽  
Vol 622-623 ◽  
pp. 816-820
Author(s):  
Fang Li ◽  
Qi Ming Li ◽  
Hern Kim
Keyword(s):  
Catalytic Activity ◽  
Hydrogen Production ◽  
Hydrogen Generation ◽  
Generation Rate ◽  
Ni Catalyst ◽  
Microwave Assisted Synthesis ◽  
Environment Friendly ◽  
Microwave Assisted ◽  
Hydrolysis Of ◽  
Supported Ni

Hydrogen production from NaBH4 hydrolysis is very important for environment-friendly fuel cells. Here Ni/CNTs nanocomposites were prepared by microwave-assisted method and used as the catalyst for catalytic hydrolysis of NaBH4. XRD and SEM characterization showed that uniform Ni/CNTs nanocomposites can be obtained through microwave heating and solvent optimization. Ni/CNTs nanocomposites exhibit excellent catalytic activity in the hydrolysis of NaBH4, i.e., the average hydrogen generation rate at 25°C is 840ml.min-1.g-1 for the CNTs-supported Ni/CNTs, while the hydrogen generation rate of 86ml.min-1.g-1 for unsupported Ni catalyst. Compared with the unsupported Ni catalyst, Ni/CNTs nanocomposites presented higher catalytic activity for hydrolysis of aqueous NaBH4 solution.

Large Dimensional CeO2 Nanoflakes by Microwave-Assisted Synthesis: Lamellar Nano-Channels and Surface Oxygen Vacancies Promote Catalytic Activity

ChemCatChem ◽  
2018 ◽  
Vol 10 (18) ◽  
pp. 4100-4108 ◽  
Author(s):  
Huihui Ding ◽  
Jingxia Yang ◽  
Shuyi Ma ◽  
Nevzat Yigit ◽  
Jingli Xu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxygen Vacancies ◽  
Microwave Assisted Synthesis ◽  
Surface Oxygen ◽  
Microwave Assisted
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