نتایج جستجو برای: cyclic oxidation

تعداد نتایج: 211954  

In the present study, electrophoretic deposition (EPD) method in different electric fields (30 – 300 V / cm) was used to apply Co3O4 spinel coating to SUS 430 as SOFC interconnect. The coated and uncoated specimens were pre-sintered in air at 800 and 900 °C for 3 h followed by cyclic oxidation at 700 and 800 °C for 500 h, respectively. X-ray diffraction analysis (XRD), Scanning Electron Microsc...

Banafsheh Norouzi Samaneh Tajjedin

Carbon paste electrode modified with cobalt impregnated zeolite was prepared by mixing of cobalt_zeolite (Co_Z) and graphite powder with different percent. The electrochemical oxidation of cefixime at such electrodes was investigated using the cyclic voltammetric and amperometric techniques. It is not electrochemically active towards cefixime oxidation in 0.1 M phosphate buffer solution (pH=7) ...

Abstract In this study , palladium nano-particles were electro deposited galvano - statically on carbon black powder (Vulcan XC -72R). The catalytic activity for electro - oxidation of ethanol and methanol in alkaline media were studied by cyclic voltammetry and linear sweep voltammetry techniques. The results indicated that the electro-oxidation of ethanol and methanol strongly depends o...

L. Fotouhi, M. Zabeti

The electrochemical oxidation of sulfamethazine (SMZ) has been studied at a multi-walled carbon nanotubes modified glassy carbon electrode (MWCNT-GCE) by cyclic voltammetry. This modified electrode (MWCNT-GCE) exhibited excellent electrocatalytic behavior toward the oxidation of SMZ as evidenced by the enhancement of the oxidation peak current and the shift in the anodic potential to less posit...

Theoretical models of irreversible electro-oxidation of dissolved reactant giving dissolved product on the stationary planar electrode are developed for the conditions of staircase cyclic voltammetry. In the first model it is assumed that the product is adsorbed on the electrode surface and that the adsorbate prevents the transfer of electrons. In the second model it is assumed that the electro...

Thymus is regarded as one of the medicinal species, which according to obtained chromatograms of floral water of Thymus; one of the main components is thymol as strong antioxidant. In this study the appropriate and physically powerful correlation was found between the anti-radical and oxidation potentials. The antioxidant activity of the Thymus was measured by using square wave and cyclic volta...

Journal: :Applied microbiology 1961
J B DAVIS R L RAYMOND

Nocardia 107-332, a soil isolate, oxidizes short-chain alkyl-substituted cyclic hydrocarbons to cyclic acids while growing on n-alkanes. Cyclic acids are produced also from relatively long-chain alkyl-substituted cyclics such as n-nonylbenzene or n-dodecylbenzene which alone support growth in a mineral-salts medium. omega-Oxidation of the alkyl substituents is followed by beta-oxidation. It is ...

2003
A. DONALD MERRITT GORDON M. TOMKINS

During a study of cyclic alcohol oxidation by a partially purified rat liver enzyme system (l), it was noted that ethanol was also oxidized by this preparation. Since the ratio of the rate of ethanol oxidation to the rate of cyclohexanol oxidation remained constant during purification, the possibility arose that the activity with cyclic substrates was due to the conventional alcohol dehydrogena...

2012
D. V. PRABHU

The kinetics of oxidation cyclopentanol, cyclohexanol and cyclooctanol using Chloramine T in NaOH has been studied in the micellar phase using sodium dodecyl sulphate in the temperature range 30°C to 50°C to correlate the oxidation rate with the ring size of the cyclic alcohols. The effect of alcohol concentration, concentration of oxidising agent, ionic strength and temperature on the oxidatio...

Journal: :journal of nanostructures 0
mohammad mazloum-ardakani department of chemistry, faculty of science, yazd university, yazd, iran fatemeh farbod department of chemistry, faculty of science, yazd university, yazd, iran laleh hosseinzadeh department of chemistry, faculty of science, yazd university, yazd, iran

the combination of graphene and nickel oxide nanoparticles yields nanostructured electrochemical sensor formed a novel kind of structurally uniform and electrocatalytic activity material. in cyclic voltammetry studies, in the presence of epinephrine, nickel oxide / graphene  composite modified electrode shows a significantly higher current response for epinephrine oxidation. based on differenti...

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