Results 31 to 40 of about 758,902 (306)

Functionalization of magnetic nanoparticles by creatine as a novel and efficient catalyst for the green synthesis of 2-amino-4H-chromene derivatives

Scientific Reports, 2022
By employing the naturally-originated molecule of creatine, Fe3O4@SiO2-creatine as an environmentally benign magnetic organometallic nanobiocatalyst was successfully prepared via a convenient and green route. Then to acquire an inclusive comprehension of
Reza Eivazzadeh-Keihan, Shahrzad Bahrami, Mostafa Ghafori Gorab, Zahra Sadat, Ali Maleki   +4 more
doaj   +1 more source

Palladium-bismuth intermetallic and surface-poisoned catalysts for the semi-hydrogenation of 2-methyl-3-butyn-2-ol [PDF]

, 2015
The effects of poisoning of Pd catalysts with Bi and annealing in a polyol (ethylene glycol) were studied on the semi-hydrogenation of 2-methyl-3-butyn-2-ol (MBY).
Anderson, James A., Cherkasov, Nikolay, Ibhadon, Alex O., Johnston, Shaun K., McCue, Alan J.   +4 more
core   +1 more source

A diselenobis-functionalized magnetic catalyst based on iron oxide/silica nanoparticles suggested for amidation reactions

Scientific Reports, 2022
In this study, a new heterogeneous magnetic catalytic system based on selenium-functionalized iron oxide nanoparticles is presented and suggested for facilitating amide/peptide bonds formation.
Reza Taheri-Ledari, Fateme Sadat Qazi, Mahdi Saeidirad, Ali Maleki   +3 more
doaj   +1 more source

Spectroscopic characterization of two peroxyl radicals during the O2-oxidation of the methylthio radical

Communications Chemistry, 2022
The atmospheric oxidation of dimethyl sulfide affects the Earth’s climate, but the intricate pathways of this complex reaction are still not fully described.
Zhuang Wu, Xin Shao, Bifeng Zhu, Lina Wang, Bo Lu, Tarek Trabelsi, Joseph S. Francisco, Xiaoqing Zeng   +7 more
doaj   +1 more source

Efficient and Green Synthesis of Acridinedione Derivatives Using Highly Fe₃O₄@Polyaniline-SO₃H as Efficient Heterogeneous Catalyst

Chemistry Proceedings, 2021
In the present investigation, an efficient heterogeneous catalyst system made of a polyaniline-derived polymer (Poly [anthranilic acid]-[N-(1′,3′-phenylenediamino) −3-butane sulfonate]) and iron oxide nanoparticles (Fe3O4 NPs) is presented. Firstly, this
Hossein Ghafuri, Shahram Moradi, Nastaran Ghanbari, Haniyeh Dogari, Mostafa Ghafori   +4 more
doaj   +1 more source

Preparation and characterization of graphitic carbon nitride-supported l-arginine as a highly efficient and recyclable catalyst for the one-pot synthesis of condensation reactions

Scientific Reports, 2021
In this work, graphitic carbon nitride-supported l-arginine (g-C3N4@l-arginine) nanocatalyst was synthesized and evaluated using FT-IR, EDX, XRD, TGA, and FESEM analyses.
Hossein Ghafuri, Zeinab Tajik, Nastaran Ghanbari, Peyman Hanifehnejad   +3 more
doaj   +1 more source

Activity of alumina supported fe catalysts for N2O decomposition: Effects of the iron content and thermal treatment [PDF]

, 2017
Indexación: Scopus.The activity of Fe2O3/Al2O3 catalysts prepared by impregnation of Al2O3 with different amounts of Fe and calcination temperatures (650 and 900 °C) in the direct N2O decomposition reaction was studied.
Aguila, G., Alvarez, P., Araya, P., Guerrero, S., Rojas, R.   +4 more
core   +1 more source

Design, synthesis, and characterization of novel eco-friendly chitosan-AgIO3 bionanocomposite and study its antibacterial activity

Scientific Reports, 2022
This work reports a facile and green approach to preparing AgIO3 nanoparticles decorated with chitosan (chitosan-AgIO3). The bionanocomposite was fully characterized by Fourier transform infrared (FTIR), scanning electron microscopy (SEM) images, energy ...
Mohammad Ali Ahghari, Mohammad Reza Ahghari, Maryam Kamalzare, Ali Maleki   +3 more
doaj   +1 more source

Copper(II)-β-cyclodextrin immobilized on graphitic carbon nitride nanosheets as a highly effective catalyst for tandem oxidative amidation of benzylic alcohols

Scientific Reports, 2022
In this study, an efficient catalyst based on graphitic carbon nitride nanosheets (CN) and copper(II) supported β-cyclodextrin (β-CD/Cu(II)) was synthesized and used for tandem oxidative amidation of benzylic alcohols.
Hossein Ghafuri, Afsaneh Rashidizadeh, Mostafa Ghafori Gorab, Ghazaleh Jafari   +3 more
doaj   +1 more source

Preprocessing and Leaching Methods for Extraction of REE from Permanent Magnets: A Scoping Review

AppliedChem, 2022
The demand for REEs is continuously increasing in the European Union due to the rapid development of high-tech applications that contain REEs, mainly those based on electrification.
Sotiria Papagianni, Anastasia Maria Moschovi, Konstantinos Miltiadis Sakkas, Michail Chalaris, Iakovos Yakoumis   +4 more
doaj   +1 more source