نتایج جستجو برای: linear sweep voltammetry

تعداد نتایج: 493416  

Journal: :iranian journal of hydrogen & fuel cell 2014
mehdi kheirmand freshteh rastegari-fard

in this paper the role of super paramagnetic iron oxide nanoparticles (spi) on platinum nanoclusters on activated carbon (pt/c) for electrocatalytic oxygen reduction reaction was considered. four composites of pt/c and super paramagnetic iron oxide nanoparticles were prepared with the same total composites weight and different loading of pt/c (1.2, 0.6, 0.4 and 0.3 mg ). the composite attached ...

Journal: :iranian journal of hydrogen & fuel cell 2015
karim kakaei hussein gharibi soheyla abbaspour

we report a pd-co (3:1)/graphene oxide (pd3co /go) catalyst through a one-step strategy. go is synthesized from graphite electrodes using ionic liquid-assisted electrochemical exfoliation. controllable go-supported pd3co electrocatalystis then was reduced by ethylene glycol as a stabilizing agent to prepare highly dispersed pdco nanoparticles on carbon graphene oxide to be used as oxygen reduct...

Journal: :iranian journal of hydrogen & fuel cell 2014
mehdi kheirmand rasol abdullah mirzaie rahil yazdanshenas ahmad nozad golikand

in this paper, the effect of surface area of reaction layers in gas diffusion electrodes on oxygen reduction reaction was investigated. for this purpose, various amounts (0.1, 0.2, 0.3, 0.4, 0.5, 1, 1.5 and zero %wt of total loading of reaction layer) of single walled carbon nanotube (swcnt) were inserted in the reaction layer. the performance of gas diffusion electrodes for oxygen reduction re...

Journal: :Journal of Chemical Physics 2021

We present a new computational approach to simulate linear sweep and cyclic voltammetry experiments that does not require discretized grid in space quantify diffusion. By using Green's function solution coupled standard implicit ordinary differential equation solver, we are able current redox species concentrations only small time. As result, where benchmarking is possible, find the method fast...

Reduced graphene oxide film was synthesized on a glassy carbon electrode by electro reduction of graphene oxide powders in aqueous solution. Then platinum nano particles were deposited on reduced graphene oxide film that was deposited on the glassy carbon electrode via electro reduction of platinum salt. The Physical morphology of the platinum on reduced graphene oxide film was evaluated by sca...

2015
Krishnan Murugappan Debbie S. Silvester

Commercially available Pt screen printed electrodes (SPEs) have been employed as possible electrode materials for methylamine (MA) and hydrogen chloride (HCl) gas detection. The room temperature ionic liquid (RTIL) 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([C₂mim][NTf₂]) was used as a solvent and the electrochemical behaviour of both gases was first examined using cyclic vo...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2006
Wei Sun Jiayu You Xuan Hu Kui Jiao

A novel voltammetric method for the determination of microamounts of fish sperm double-stranded (ds) DNA based on its interaction with phenosafranine (PSF) is proposed in this paper. In a pH 3.5 Britton-Robinson (B-R) buffer solution, PSF had a well-defined second-order derivative linear-sweep voltammetric reductive peak at -0.32 V (vs. SCE) on a mercury electrode. After the addition of dsDNA i...

Journal: : 2023

The linear sweep voltammetry potentiostatic approach was employed to electrochemically synthesize the conjugated copolymers P(3HT-random-HPDTP) at three distinct applied voltages (1.4, 1.435, 1.6 V). In relation their synthesis conditions, chemical structural, optical, and electrical properties were investigated compared using Fourier transform infrared (FTIR) spectroscopy, UV‒Vis absorption cy...

2012
Wei Sun Jiayu You Qingxiang Wang Kui Jiao

A new linear sweep vo ltammetric (LSV) assay of fsDNA based on its interaction with neutra l red (N R) is presented. At pH 8.0 Britton-Robinson (8-R) buffe r solutio n, the dye can bind with DNA to form a supramolec ular complex , wh ich results in the decrease of the linear sweep voltammetric reductive peak current at -0.60 V (vs. SCE) on the mercury e lec trode. The binding reaction is comple...

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