نتایج جستجو برای: chronoamperometry

تعداد نتایج: 514  

Journal: :MATEC web of conferences 2021

We studied the effect of nature terminal group thiols with same chain length HS (CH 2 )8 – R (R: -CH 3 , OH, -NH ) on electrodesorption behaviour well-formed SAMs (the self-assembled monolayers), their stability and blocking ability using voltammetry chronoamperometry. The functional determines surface properties SAM provides basis for subsequent interactions (for example, peptides, proteins, D...

Journal: :Journal of New Materials For Electrochemical Systems 2021

This study is conducted to explore the effective and stable electrode materials for electrochemical reduction of CO2. The different compositions (3 - 8%) CuO-supported CNT samples were prepared by a traditional sol-gel method, characterized TGA, SEM, TEM, FTIR XRD. characterization results confirmed uniform impregnation CuO on defects CNT's, which improved utilization meso microporous distribut...

Journal: :Applied sciences 2021

The understanding of electrocatalytic activity and poisoning resistance properties Pt Pd nanoparticles, recognized as the best electrocatalysts for ethanol oxidation reaction, is an essential step commercialization direct fuel cells (DEFCs). In this paper, mono bimetallic nanoparticles with different atomic ratios have been synthesized to study their reaction in alkaline solutions. were physioc...

Journal: :iranian journal of pharmaceutical research 0
sadegh akbari chermini young researchers club, branch, majlesi branch, islamic azad university, isfahan, iran hassan karimi-maleh graduate university of advanced technology, kerman, iran mohsen keyvanfard department of chemistry, majlesi branch, islamic azad university, isfahan, iran

the electrocatalytic oxidation of captopril (cap) was studied by modified carbon nanotubes paste electrode in the presence of isoproterenol (ispt) using cyclic voltammetry (cv), chronoamperometry and square wave voltammetry (swv). also, the values of catalytic rate constant (k), and electron transfer coefficient (α) for cap were calculated. the mechanism of ca electrochemical behavior at the mo...

Journal: :chemistry of solid materials 2013
reza ojani fakhrosadat jamali jahan-bakhsh raoof sayed reza hosseini

copper nanoparticles were fabricated by electro-reduction of cuso4solution in the presence of cetyltrimethylammonium bromide (ctab) cationic surfactant as an additive through potentiostatic method. the prepared copper nanoparticles were characterized by scanning electron microscopy (sem) and electrochemical methods. the sem images reveal that the nanoparticles with diameters at about 70 n...

Journal: :journal of nanostructures 2012
m. mazloum-ardakani h. kholghi m. a. sheikh-mohseni a. benvidi h. naeimi

in this paper, a nanostructured modified electrode was fabricated by incorporating of 2,2′-[1,9-nonanediylbis(nitriloethylidyne)]-bis-hydroquinone (nnh) as a newly synthesized modifier and tio2 nanoparticles to the carbon paste (mtcpe) and then was used for the electroanalysis of epinephrine (ep). the electrochemical studies were carried out by using cyclic voltammetry, chronoamperometry and di...

Journal: :Electrochemistry Communications 2023

The electro-deoxidation of metal oxides has been presented as an alternative to the pyro- and electro-metallurgical techniques generally used create metals alloys. However, previous research concentrated on employing chronoamperometric analyse cathodic reactions, ignoring important information reduction processes. In this work, we examine using several DC voltammetric techniques, including cons...

Journal: :Catalysts 2021

Conductive polymers are widely used as active and auxiliary materials for organic photovoltaic cells due to their easily tunable properties, high electronic conductivity, light absorption. Several conductive show the cathodic photogalvanic effect in pristine state. Recently, photoelectrochemical oxygen reduction has been demonstrated nickel complexes of Salen-type ligands. Herein, we report an ...

Journal: :Journal of Sustainable Metallurgy 2023

Abstract Ultrasound-assisted chalcopyrite leaching has been reported previously, showing a noticeable improvement in kinetics. However, the effect of ultrasound on oxidation kinetics from an electrochemical perspective not addressed. This study examines ultrasonic enhancement sulfuric acid solution both conventional and electrochemistry aspects. Electrochemical techniques, including linear swee...

The electrocatalytic oxidation of captopril (CAP) was studied by modified carbon nanotubes paste electrode in the presence of isoproterenol (ISPT) using cyclic voltammetry (CV), chronoamperometry and square wave voltammetry (SWV). Also, the values of catalytic rate constant (k), and electron transfer coefficient (α) for CAP were calculated. The mechanism of CA electrochemical behavior at the mo...

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