نتایج جستجو برای: electrochemical behavior

تعداد نتایج: 666139  

2014
Sophia Karastogianni Stella Girousi

In this article, the electrochemical behavior of triethanolimine is described with a carbon paste electrode. A differential pulse voltammetric method was also developed for the determination of triethanolamine as an application to electroanalysis at a carbon paste electrode. The resultant voltammograms have revealed the irreversible electrochemical process that can be utilized to quantify the s...

2007
K. S. George S. Nes̆ić

The corrosion behavior of mild steel in the presence of acetic acid (CH3COOH) and carbon dioxide (CO2) has been investigated using electrochemical techniques and weight-loss measurements. Electrochemical measurements have shown that the presence of acetic acid affects predominantly the cathodic reaction. The acetic acid effect is much more pronounced at elevated temperatures when catastrophic c...

Journal: :Acta chimica Slovenica 2014
Cristina-Andreea Amarandei George-Octavian Buica Georgiana Anca Inel Liviu Birzan Eleonora-Mihaela Ungureanu

This work is devoted to the electrochemical characterization of 1,3-diethyl 2-(azulen-1-ylmethylene)propanedioate by cyclic voltammetry and differential pulse voltammetry. The redox processes are established, analyzed and assessed to the particular functional groups at which they take place. The complexation behavior towards lanthanide metal ions (Sm(3+), Eu(3+), Yb(3+), Tb(3+)) was studied by ...

Journal: :Journal of neuroscience methods 2009
Hao Zhang Shih-Chieh Lin Miguel A L Nicolelis

Simultaneous acquisition of in vivo electrophysiological and neurochemical information is essential for understanding how endogenous neurochemicals modulate the dynamics of brain activity. However, up to now such a task has rarely been accomplished due to the major technical challenge of operating two independent recording systems simultaneously in real-time. Here we propose a simpler solution ...

In this paper, the effects of infiltration of La2NiO4 (LNO) as a mixed ionic and electronic conductor (MIEC) on the electrochemical performance of porous strontium doped lanthanum manganite (LSM) oxygen electrode of solid oxide cells, in the temperature ranges of 650-850 °C, is reported. XRD and FE-SEM results of the LNO sample calcined at 900 °C confirmed the formation of single phase LNO nano...

2010
ianggui Kong Jingwen Zhao Jingbin Han Danyao Zhang Min Wei Xue Duan

A facile enzyme-free hydrogenperoxide electrochemical sensorwas fabricated based onmultilayer ultrathin film containing Naphthol green B anions (NGB) and exfoliated nanosheets of Co–Al layered double hydroxide (LDH) via layer-by-layer self-assembly technique. The X-ray diffraction pattern indicates the superlattice structure of the filmwith repeating distance of 4.15nm; SEM and AFM images show ...

2000
B. Wu R. E. White

Serial simulation is required to predict the behavior of an electrochemical system undergoing many processes. This is demonstrated through the simulation of charge/open-circuit/discharge processes of a thin ®lm nickel hydroxide electrode. The numerical issues involved in this kind of simulation are discussed. An ef®cient and robust procedure is presented. It can be easily used to achieve the se...

In the current work, graphene oxide (GO) samples were prepared at room temperature from graphite flakes using a modified Hummer's method to produce metal-free electrocatalysts. The effect of the duration of the oxidation process on the structural, chemical and physical characteristics of the GO samples was evaluated using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), ...

2014
Lorenzo Grande Elie Paillard Guk-Tae Kim Simone Monaco Stefano Passerini

In this work, the electrochemical stability and lithium plating/stripping performance of N-butyl-N-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide (Pyr14TFSI) are reported, by investigating the behavior of Li metal electrodes in symmetrical Li/electrolyte/Li cells. Electrochemical impedance spectroscopy measurements and galvanostatic cycling at different temperatures are performed to ana...

2017
Svetlana Kochetova Anastasiya Savchuk Dmytro Shakhnin Viktor Malyshev

The electrochemical behavior of rhodium at low-temperature carbamide-chloride and acetamide-chloride melts was investigated. It was found that, during rhodium anodic dissolution in carbamide and acetamide containing chloride melts, mixed complexes [Rh(NH3)4Cl2]+ of quasi-octahedral symmetry D4h are produced. The composition and structure of nascent complex ions have been studied. During electro...

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