نتایج جستجو برای: electrochemical tests

تعداد نتایج: 386824  

Journal: :Materials transactions 2021

The synergistic effects of metal cations in a solution on the ability sodium gluconate to inhibit corrosion mild steel were investigated by immersion and electrochemical tests. inhibition was quantitatively, with particular focus parameter Y, which represents “corrosion inhibitory effect cations.” results tests showed that improved increasing Y value model freshwater. surface analyses indicated...

Journal: :محیط شناسی 0
گاگیک بدلیانس قلی کندی دانشیار مهندسی محیط زیست ،آب و فاضلاب، دانشگاه شهید بهشتی، پردیس فنی مهندسی شهید عباسپور حمیدرضا مسیحی کارشناس ارشد مهندسی عمران، آب و فاضلاب، دانشگاه شهید بهشتی، پردیس فنی مهندسی شهید عباسپور مریم میرابی استادیار مهندسی محیط زیست ، آب و فاضلاب، دانشگاه شهید بهشتی، پردیس فنی مهندسی شهیدعباسپور

introduction             wastewater treatment using activated sludge process (asp) produces huge amounts of sludge that must be treated by efficient methods. wastewater sludge handling is one of the most important economic-technical challenges of wastewater treatment projects. conventional methods for this purpose are very time consuming, expensive and in lots of cases have limited success. in ...

Journal: :MATEC web of conferences 2022

Sn-TiO 2 nanocomposite coatings were prepared by sol-gel enhanced electrodeposition technique and the effect of c concentration on performance composite was investigated adding different volumes TiO sol to electrolyte. The microscopic morphology corrosion resistance characterized XRD tests, SEM hardness tests a series electrochemical tests. From test results, it found that coating had highest v...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه - پژوهشکده ادبیات 1393

testing plays a vital role in any language teaching program. it allows teachers and stakeholders, including program administrators, parents, admissions officers and prospective employers to be assured that the learners are progressing according to an accepted standard (douglas, 2010). the problems currently facing language testers have both practical and theoretical implications but the first i...

Journal: :journal of physical & theoretical chemistry 2014
hossein tajabadipour mehdi shahidi nima karachi

vanillin is an interesting corrosion inhibitor because of its safe use and high solubility inwater. the effect of vanillin on the corrosion inhibition of carbon steel in 1.0 mhydrochloric acid solution has been studied using potentiodynamic polarization,electrochemical impedance spectroscopy (eis) and electrochemical noise (en) techniques.the effect of temperature on the rate of corrosion in th...

Journal: :Coatings 2021

In this article, we conduct research on the effect of corrosion tests hydrogen diffusion process in gas steel electrochemical permeability tests. This show that a long test time reduces coefficient by an order magnitude, indicating formation aging defects steel. During operation, decreases two orders which also indicates large number Consequently, based change material, it is possible to assess...

2015
Wicem Argoubi Maroua Saadaoui Sami Ben Aoun Noureddine Raouafi

The demand for on-site nanodevices is constantly increasing. The technology development for the design of such devices is highly regarded. In this work, we report the design of a disposable platform that is structured with cauliflower-shaped gold nanoparticles (cfAuNPs) and we show its applications in immunosensing and enzyme-based detection. The electrochemical reduction of Au(III) allows for ...

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...

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: :ECS transactions 2023

In the present research work, evaluation of a non-ionic gemini surfactant derived from palm oil named bis(2-((2-palmitoamidoethyl) amino) ethyl) 1H-imidazole-4,5-dicarboxylate as an ecological corrosion inhibitor X100 steel immersed in NaCl solution at 3.5% saturated with carbon dioxide (CO 2 ) was analyzed. The electrochemical tests performed by Polarization Curves (PC) and Electrochemical Imp...

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