نتایج جستجو برای: electrochemical behavior

تعداد نتایج: 666139  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه - دانشکده علوم 1391

nanotechnology is a general term which is related with field of all advanced science term that generally predicates with all modern technologies which consider nanoscales. improvement in the quality of products by adding some nanoparticles and study of their behavior in the presence of these nanoparticles have been obtained in many researches. on the other hand numerous demands for sowing ...

Journal: :journal of nanostructures 2012
m. najafi a. abbasi a. badiei

a number of redox-active coordination polymers (cps) or metal-organic frameworks (mofs) have been successfully synthesized using transition metals and bridging ligands. this article aims to deal with gathering the aforementioned disperse issues regarding the electroactive cps. it also goes towards illustrating the effects of various factors on the electrochemical behavior of cps including natur...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1390

abstract ion selective electrodes (ises) are electrochemical sensors that respond selectivity to the activity of ionic species. an ion-selective electrode is an electrochemical device that uses a thin selective membrane or film as the recognition element, and is an electrochemical half-cell equivalent to other half-cells of the zeroth (inert metal in a redox electrolyte). in common methods o...

Journal: :international journal of environmental research 2010
m. assassi f. fourcade f. geneste d. floner r. maachi

the aim of this study was to determine the feasibility of coupling an electrochemical process with a biological treatment in order to degrade phosmet, an organophosphorous pesticide. the absence of biodegradability of phosmet by pseudomonas fluorescens and activated sludge was verified in our operational conditions. so, a conventional biological treatment is not appropriate for phosmet polluted...

Journal: :international journal of iron & steel society of iran 2015
m. atapour m. m dana f. ashrafizadeh

aisi 304l austenitic stainless steel with different grain sizes of 0.5 -12 μm was obtained through the martensiticprocess. corrosion behavior of different samples was investigated in a 0.5m hcl solution using open circuitpotential, potentiodynamic polarization and electrochemical impedance spectroscopy tests. also, the correlationbetween the grain size and pitting corrosion resistance was asses...

Journal: :international journal of environmental research 0
m. assassi université houari boumediene, institut de chimie industrielle, laboratoire de génie de la réaction, alger 1611, algeria f. fourcade université rennes 1, ecole nationale supérieure de chimie de rennes, cnrs, umr 6226, avenue du général leclerc, cs 50837, 35708 rennes cedex 7, france, université rennes 1, cnrs, umr 6226, equipe catalyse et organométalliques, campus de beaulieu, 35042 r f. geneste université rennes 1, ecole nationale supérieure de chimie de rennes, cnrs, umr 6226, avenue du général leclerc, cs 50837, 35708 rennes cedex 7, france 3 université rennes 1, cnrs, umr 6226, equipe catalyse et organométalliques, campus de beaulieu, 35042 d. floner université rennes 1, ecole nationale supérieure de chimie de rennes, cnrs, umr 6226, avenue du général leclerc, cs 50837, 35708 rennes cedex 7, france 3 université rennes 1, cnrs, umr 6226, equipe catalyse et organométalliques, campus de beaulieu, 35042 r. maachi université rennes 1, ecole nationale supérieure de chimie de rennes, cnrs, umr 6226, avenue du général leclerc, cs 50837, 35708 rennes cedex 7, france a. amrane université rennes 1, ecole nationale supérieure de chimie de rennes, cnrs, umr 6226, avenue du général leclerc, cs 50837, 35708 rennes cedex 7, france 3 université rennes 1, cnrs, umr 6226, equipe catalyse et organométalliques, campus de beaulieu, 35042

the aim of this study was to determine the feasibility of coupling an electrochemical process with a biological treatment in order to degrade phosmet, an organophosphorous pesticide. the absence of biodegradability of phosmet by pseudomonas fluorescens and activated sludge was verified in our operational conditions. so, a conventional biological treatment is not appropriate for phosmet polluted...

Journal: :journal of ultrafine grained and nanostructured materials 2014
najmeh asadi reza naderi mohsen saremi flavio deflorian

this work is aimed to evaluate the role of nanoclay in the protective performance of an eco-friendly silane sol-gel layer applied on mild steel substrate in 0.1m sodium chloride solution. at the first step, the effect of ph of the silane solution, consisting of a mixture of γ-glycidoxypropiltrimethoxysilane and methyltriethoxysilane and tetraethoxysilane, on the coating performance was evaluate...

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: :iranian journal of chemistry and chemical engineering 0
biuck habibi electroanalytical chemistry laboratory, department of chemistry, faculty of sciences, azarbaijan shahid madani university, tabriz, i.r. iran serveh ghaderi electroanalytical chemistry laboratory, department of chemistry, faculty of sciences, azarbaijan shahid madani university, tabriz, i.r. iran

in the present work, the electrooxidation of formic acid and formaldehyde; potentially important fuels for future fuel cells, was investigated on the fe3o4@pt core-shell nanoparticles/carbon-ceramic electrode (fe3o4@pt/cce). the fe3o4@pt nanoparticles were prepared via a simple and fast chemical method and their surface morphology, nanostructure properties, chemical composition, crystal phase, ...

Journal: :international journal of iron & steel society of iran 2013
a. fattah-alhosseini

this paper focused on the characterization of electrochemical behavior of a martensitic stainless steel inthe acidic solutions. for this purpose, electrochemical parameters were derived from potentiodynamicpolarization, mott schottky analysis and electrochemical impedance spectroscopy (eis) techniques.the potentiodynamic polarization results showed that corrosion current density of aisi 420 sta...

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