نتایج جستجو برای: electrochemical oxidation

تعداد نتایج: 162314  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور 1387

چکیده ندارد.

Electrochemical oxidation of some selected catechol derivatives, using cyclic voltammetry, in the presence of different 2-aryl-1,3-indandiones as nucleophiles, resulted in electrochemical synthesis of new 1,3- indandione derivatives in an undivided cell in good yield and purity. A Michael addition mechanism was proposed for the formation of the analogs based on the reaction conditions which wer...

ژورنال: مهندسی دریا 2015

In this study, Plasma Electrolytic Oxidation (PEO) technique was used for generating ceramic layer on the surface of aluminum alloy AA2024-T6 and the effect of coating time on the electrochemical corrosion behavior, micro-hardness, morphology of coating, and the phase structure was studied. The alloy was coated in 1, 3, 5 and 7 minutes at a constant electrical potential 550 V in a sodium silica...

Journal: :Chemical communications 2008
Ryosuke Asami Toshio Fuchigami Mahito Atobe

The anodic substitution reaction proceeded smoothly without affecting the oxidation of the nucleophile in a one-step electrochemical operation using acoustic emulsification.

2016
Michael R Chapman Susan E Henkelis Nikil Kapur Bao N Nguyen Charlotte E Willans

Synthetic methods to prepare organometallic and coordination compounds such as Schiff-base complexes are diverse, with the route chosen being dependent upon many factors such as metal-ligand combination and metal oxidation state. In this work we have shown that electrochemical methodology can be employed to synthesize a variety of metal-salen/salan complexes which comprise diverse metal-ligand ...

Journal: :Chemical communications 2014
Huihui Gao Zhenggen Zha Zhenlei Zhang Huanyue Ma Zhiyong Wang

A facile difunctionalization of arylketones with malonate esters via electrochemical oxidation was achieved under mild conditions. A variety of difunctionalized products were obtained in good to excellent yields.

Journal: :Chemical communications 2009
Gao-Ren Li Dun-Lin Qu Zi-Long Wang Cheng-Yong Su Ye-Xiang Tong Laurent Arurault

Ceria-terbia solid solution nanobelts were prepared by an electrochemical route and tested as catalysts of high activity for CO oxidation.

Journal: :Bioelectrochemistry 2015
A Dora R Pontinha Caterina M Lombardo Stephen Neidle Ana Maria Oliveira-Brett

The redox mechanism of two trisubstituted triazole-linked phenyl derivatives (CL41 and CL42) and a disubstituted triazole-linked phenyl derivative (CL2r50) were studied using cyclic, differential pulse and square wave voltammetry at a glassy carbon electrode. The CL41, CL42 and CL2r50 oxidation is a complex, pH-dependent irreversible process involving the formation of electroactive products tha...

2012
NAGAPPA LAXMAN TERADAL SHANKAR NARAYAN PRASHANTH JALDAPPAGARI SEETHARAMAPPA

The electrochemical oxidation of nevirapine, an anti-HIV drug, at a glassy carbon electrode has been studied by voltammetric techniques. Nevirapine showed one well defined irreversible oxidation peak with a potential of 0.749 V in phosphate buffer at pH 10. The effects of different electrolytes, pH and scan rate on the electrochemical behaviour of nevirapine were examined to determine the optim...

2017
İlknur Gergin Ezgi Ismar A Sezai Sarac

In this study, a precursor for carbon nanofibers (CNF) was fabricated via electrospinning and carbonized through a thermal process. Before carbonization, oxidative stabilization should be applied, and the oxidation mechanism also plays an important role during carbonization. Thus, the understanding of the oxidation mechanism is an essential part of the production of CNF. The oxidation process o...

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