نتایج جستجو برای: magnetite heterogeneous nanocatalyst

تعداد نتایج: 131630  

2012
Raed Abu-Reziq

The synthesis of magnetically separable quasi-homogeneous base catalyst and heterogeneous base catalyst is described. The quasi-homogeneous catalyst is achieved by supporting silane monomers functionalized with different amine groups directly on the surface of magnetite nanoparticles. The heterogeneous catalyst is prepared via a sol-gel process in which silane monomers containing different amin...

An efficient procedure and green route has been developed by using eco-friendly green synthesized palladium nanoparticles (Pd-NPs) as reusable heterogeneous nanocatalyst (Pd@nanocat) for the synthesis of diaryl ethers from the cross coupling reaction of the aryl halides with the phenol in the presence of dimethylsulfoxide (DMSO) as a solvent at 110 oC under natural ligand condition capped Pd-NP...

Journal: :Journal of Coordination Chemistry 2021

Niloufar Parandeh-Khoozani & Mohsen Moradian*Department of Organic Chemistry, Faculty University Kashan, Iran

2015
John Mondal Anup Biswas Shunsuke Chiba Yanli Zhao

Cu(0) nanoparticles were deposited on a nanoporous polymer to develop a novel nanocatalyst (Cu-B) for carrying out Ullmann coupling of aryl halides with amines in water. Non-aqueous polymerization of a mixture of divinylbenzene and acrylic acid under hydrothermal conditions followed by the deposition of Cu(0) nanoparticles were adopted to afford the Cu-B nanocatalyst. In order to compare the ca...

Journal: :Journal of Physical Chemistry C 2021

Magnetite shows enormous potential from biocompatible hybrid materials to heterogeneous catalysis. However, a detailed atomistic understanding of magnetite in complex nanostructures and at interfac...

A new recoverable molybdenum nanocatalyst was prepared by immobilization  of a Schiff base ligand on the surface of silica coated magnetite nanoparticles (Fe3O4@SiO2) through condensation reaction between 3-aminopropyl triethoxysilane and 2-hydroxy1-naphthaldehyde and succeeding reaction with dioxomolybdenum(VI) acetylacetonate (MoO2(acac)2). The synthesized cat...

2018
Somayeh Ostovar Ana Franco Alain R. Puente-Santiago María Pinilla-de Dios Daily Rodríguez-Padrón Hamid R. Shaterian Rafael Luque

A bifunctional nanocatalyst composed of iron containing SBA-15 material modified with sulfonic acid groups was synthesized by a mechanochemical approach. A full characterization of the obtained nanocatalyst was performed by N2 physisorption isotherms analysis, transmission electron microscopy (TEM), X-ray powder diffraction (XRD) and Fourier-Infrared Spectroscopy (FT-IR). The mechanochemically ...

2017
Zhiping Xiong Shumin Li Hui Xu Ke Zhang Bo Yan Luísa Margarida Martins

This paper reported the fabrication of ternary metallic PtPdBi hollow nanocatalyst through a facile, one-pot, wet-chemical method by adopting sodium borohydride and polyvinylpyrrolidone as reducing agent and surfactant directing agent, respectively. The hollow structure offers novel morphology and large surface areas, which are conducive to enhancing the electrocatalytic activity. The electroca...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید