Nano Fe3O4@APTES@Ni(OH)2as a catalyst for alcohol oxidation

2015 ◽  
Vol 39 (1) ◽  
pp. 273-278 ◽  
Author(s):  
Pooja B. Bhat ◽  
Badekai Ramachandra Bhat
Keyword(s):  
Nickel Hydroxide ◽  
Alcohol Oxidation ◽  
Coprecipitation Method ◽  
Nano Fe3o4

A nanorod shaped nickel hydroxide coated ferrite nanocatalyst was synthesized by a traditional coprecipitation method exhibiting a synergized effect for alcohol oxidation.

Defect engineering of nickel hydroxide nanosheets by Ostwald ripening for enhanced selective electrocatalytic alcohol oxidation

2019 ◽  
Vol 21 (3) ◽  
pp. 578-588 ◽  
Author(s):  
Xianlang Chen ◽  
Xing Zhong ◽  
Bowen Yuan ◽  
Suiqin Li ◽  
Yongbing Gu ◽  
...  
Keyword(s):  
Benzoic Acid ◽  
Benzyl Alcohol ◽  
Nickel Hydroxide ◽  
Electrocatalytic Oxidation ◽  
Ostwald Ripening ◽  
Alcohol Oxidation ◽  
Defect Engineering

Selective electrocatalytic oxidation (ECO) of benzyl alcohol to benzoic acid or benzaldehyde over 1.0 h-Ni(OH)2 with excellent conversion, selectivity, and stability in a two compartment H cell is presented.

Nickel Hydroxide/Cobalt–Ferrite Magnetic Nanocatalyst for Alcohol Oxidation

2014 ◽  
Vol 16 (8) ◽  
pp. 397-402 ◽  
Author(s):  
Pooja B. Bhat ◽  
Fawad Inam ◽  
Badekai Ramachandra Bhat
Keyword(s):  
Nickel Hydroxide ◽  
Cobalt Ferrite ◽  
Alcohol Oxidation ◽  
Magnetic Nanocatalyst

Synthesis of Chalcone Derivatives by Phthalhydrazide-Functionalized TiO2-Coated Nano-Fe3O4 as a New Heterogeneous Catalyst

2020 ◽  
Vol 17 ◽  
Author(s):  
Forough Motamedi Nia ◽  
Mahnaz Farahi ◽  
Bahador Karami ◽  
Raziyeh Keshavarz
Keyword(s):  
Heterogeneous Catalyst ◽  
Significant Loss ◽  
Magnetic Nanocatalyst ◽  
Chalcone Derivatives ◽  
Ft Ir ◽  
Nano Fe3o4

Abstract:: Phthalhydrazide immobilized on TiO2-coated nano Fe3O4 (Fe3O4-P) was synthesized and characterized by FT-IR, XRD, SEM, EDS and VSM analysis. The resulting magnetic nanocatalyst was used as a catalyst for the synthesis of chalcone derivatives which affords the desired products in good to excellent yields. This catalyst can be isolated readily after completion of the reaction by an external magnetite field and reused several times without significant loss of activity.

Photooxidation effect of cupric complexes on aliphatic alcohols in nonaqueous solutions

1982 ◽  
Vol 47 (8) ◽  
pp. 2061-2068 ◽  
Author(s):  
Jan Sýkora ◽  
Mária Jakubcová ◽  
Zuzana Cvengrošová
Keyword(s):  
Coordination Sphere ◽  
Alcohol Oxidation ◽  
Aliphatic Alcohols ◽  
Oxidation Products ◽  
Molar Ratio ◽  
Quantum Yields ◽  
Nonaqueous Solutions ◽  
The Absolute ◽  
Absolute Quantum

In the photolysis of copper(II)-chloride-alcohol-acetonitrile systems (cCu = 1 mmol l-1, copper(II)-to-chloride molar ratio 1 : 2 to 1 : 8, 10% (v/v) alcohol), Cu(II) is reduced to Cu(I), and methanol, ethanol, 1-propanol, or 1-butanol is oxidized to the corresponding aldehyde, 2-propanol to acetone. In the case of 1-propanol and 1-butanol, chlorinated aldehydes are formed in addition too. The measured quantum yields of the photoreduction of Cu(II) to Cu(I) lay in the range of ΦCu(I) = 4.5 to 40 mmol einstein-1, the absolute quantum yields of the alcohol oxidation products were 2.3 to 47 mmol einstein-1. The photoactive components are chlorocupric complexes [CuClx](2-x)+ (x = 1-4). The presence of complexes with a higher number of chloroligands in the coordination sphere (x = 3, 4) brings about a decrease in the Cu(II) photoreduction rate. The decrease in the photoreduction rate observed in the presence of dioxygen is explained in terms of re-oxidation of copper(I) by the latter, resulting in an increase in the concentration of the photochemically active cupric complexes. The catalytic aspects of the systems in question are discussed with respect to this effect.

scholarly journals Microparticles with hetero-nanointerfaces: controlled assembly of cobalt hydroxide and nickel hydroxide nanoclusters towards improved electrochemical functions

2019 ◽  
Vol 7 (44) ◽  
pp. 25290-25296 ◽  
Author(s):  
Naoki Tarutani ◽  
Yasuaki Tokudome ◽  
Matías Jobbágy ◽  
Galo J. A. A. Soler-Illia ◽  
Masahide Takahashi
Keyword(s):  
Nickel Hydroxide ◽  
Metal Hydroxide ◽  
Cobalt Hydroxide ◽  
Controlled Assembly

Hybridization of electrochemical functions derived from large hetero-interfaces by assembly of layered metal hydroxide nanoclusters.

Effect of Temperature on Fe3O4 Magnetic Nanoparticles Prepared by Coprecipitation Method

2014 ◽  
Vol 900 ◽  
pp. 172-176 ◽  
Author(s):  
Ji Mei Niu ◽  
Zhi Gang Zheng
Keyword(s):  
Magnetic Nanoparticles ◽  
Coprecipitation Method ◽  
Effect Of Temperature ◽  
Vibrating Sample Magnetometer ◽  
X Ray Diffraction ◽  
X Ray ◽  
Magnetic Carriers ◽  
Average Grain Size ◽  
Or Gene ◽  
Block Temperature

The Fe3O4 magnetic nanoparticles obtained by the aqueous coprecipitation method are characterized systematically using scanning electron microscope, X-ray diffraction and vibrating sample magnetometer. These magnetic nanoparticles are spheric, dispersive, and have average grain size of 50 nm. The size and magnetic properties of Fe3O4 nanoparticles can be tuned by the reaction temperature. All samples exhibit high saturation magnetization (Ms=53.4 emu·g-1) and superparamagnetic behavior with a block temperature (TB) of 215K. These properties make such Fe3O4 magnetic nanoparticles worthy candidates for the magnetic carriers of targeted-drug or gene therapy in future.

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