نتایج جستجو برای: redox reagent

تعداد نتایج: 56175  

Journal: :Chemical communications 2015
Da Li Na Kong Jingquan Liu Hongbin Wang Colin J Barrow Shusheng Zhang Wenrong Yang

We describe an alternative electrochemical technique to monitor covalent bond formation in real-time using nanoparticle-electrode collisions. The method is based on recognising the redox current when MP-11 functionalised chemical reduced graphene oxide (rGO) nanosheets collide with Lomant's reagent modified gold microelectrode. This facile and highly sensitive monitoring method can be useful fo...

Journal: :Angewandte Chemie 2023

Reagent-free electronic biosensors capable of analyzing disease markers directly in unprocessed body fluids will enable the development simple & affordable devices for personalized healthcare monitoring. Here we report a powerful and versatile nucleic acid-based reagent-free sensing system. The signal transduction is based on kinetics an electrode-tethered molecular pendulum—a rigid double stra...

Journal: :journal of nanostructures 0
xu liu school of materials science and engineering, yunnan university, 650091 kunming, people’s republic of china yan yang school of materials science and engineering, yunnan university, 650091 kunming, people’s republic of china yunfei han school of materials science and engineering, yunnan university, 650091 kunming, people’s republic of china lihong wang school of materials science and engineering, yunnan university, 650091 kunming, people’s republic of china gang chen school of materials science and engineering, yunnan university, 650091 kunming, people’s republic of china xuechun xiao school of materials science and engineering, yunnan university, 650091 kunming, people’s republic of china yude wang

single crystal zno microrods are deposited on the surface of zn plate through corrosion of zn plate by h2o2, which is a green neutral reagent and easy to transform to h2o and o2. the structure and morphology of the obtained zno microrods were characterized by x-ray diffraction (xrd), scanning electron microscopy (sem), transmission electron microscopy (tem) and electron diffraction. a thermodyn...

Journal: :Electrochemistry 2021

For the modification of reversibility magnesium deposition–dissolution in non-aqueous glyme-based electrolytes, surface a metal or alloy AZ31 was covered by graphene oxide modified using Grignard reagent. After modification, chloride moieties appeared to connect with oxygen-containing functional groups oxide. The electrode MgCl-modified exhibited reversible redox reaction assigned from substanc...

Journal: :Chemistry: A European Journal 2021

“Stairway to Heaven” molecules based on polycyclic aromatic hydrocarbon structures bridged by fulvalene motifs were prepared from simple precursors using Lawesson's reagent. These ladder-type are multi-redox systems that exhibit both reversible oxidations and reductions with electrochemical HOMO-LUMO gaps correlating the optical ones. Representative cyclic voltammograms shown as “clouds”. More ...

Single crystal ZnO microrods are deposited on the surface of Zn plate through corrosion of Zn plate by H2O2 which is a green neutral reagent and easy to transform to H2O and O2. The structure and morphology of the obtained ZnO microrods were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy and electron diffraction. A thermodynamics mechanism was...

2001
S. AYATA H. YILDIRAN

A novel technique for silver extraction from Ag2S is described. The method utilizes thiosulphate as complexing reagent and the redox reaction between SO2 added as Na2SO3 powder and H2S gas evolved. The parameters of the reaction such as pH, the reaction temperature, the complex equilibrium of Ag ion with thiosulphate and the solubility of Ag2S were investigated. Silver ions, obtained by this me...

2017
Niki R. Patel Christopher B. Kelly Allison P. Siegenfeld Gary A. Molander

An operationally simple, mild, redox-neutral method for the photoredox alkylation of imines is reported. Utilizing an inexpensive organic photoredox catalyst, alkyl radicals are readily generated from the single-electron oxidation of ammonium alkyl bis(catecholato)silicates and are subsequently engaged in a C-C bond-forming reaction with imines. The process is highly selective, metal-free, and ...

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