نتایج جستجو برای: electrochemical reaction

تعداد نتایج: 458008  

Journal: :Recent patents on nanotechnology 2013
E Ramirez-Meneses M A Dominguez-Crespo A M Torres-Huerta

In this work, a review of articles and patents related to the utilization of colloidal metal nanoparticles produced by the decomposition of organometallic precursors as supported electrocatalysts in different electrochemical reactions including hydrogen evolution reaction (HER), oxygen reduction reaction (ORR) and methanol oxidation reaction (MOR) is discussed. In the case of stabilized metal n...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2002
jahanbakhsh raoof reza ojani mohammad fallah

the electrochemical preparation of poly-n-methylpyrrole (pmpy) coated platinum electrode in chloroform in the presence of tetrabutylammonium perchlorate, hexafluorophosphate, hydrogensulphate, periodate and iodide as supporting electrolytes was performed. the influence of electrosynthesis method, dopant anion type and operation temperature on electrochemical behavior of polymer were demonstrate...

2010
Amirah binti Ahmad Mohamed Rozali Othman

In recent years, catalytic properties of gold have played a major role in the chemistry of environmentally safe substances. In this study, propionic acid was synthesized using electrochemical oxidation on a gold plate electrode in potassium hydroxide. Five hours of electrochemical reaction at a constant voltage was carried out using the chronocuolometry method. Propionaldehyde was oxidized elec...

2013
Bo Young Jeon Il Lae Jung Doo Hyun Park

In this research, metabolic fixation of CO2 by growing cells of C. acetobutylicum cultivated with electrochemical reducing power was tested on the basis of the metabolites production and genes expression. In cyclic voltammetry, electrochemical oxidation and reduction reaction of neutral red (NR) immobilized in intact cells of C. acetobutylicum was stationarily repeated like the soluble one in t...

2007
Bilge Yildiz Deborah J. Myers J. David Carter Kee-Chul Chang Hoydoo You

The governing reaction mechanisms, and the electrode material compositions and structures, that controls the efficiency of the solid oxide fuel cells (SOFC) and solid oxide electrolysis cells (SOEC) need to be identified and well-understood for significant technological improvements. Our study on the oxygen electrodes focuses on specifically the effect of electrode crystal structure and morphol...

Abdullah Mohamed Asiri Elsayed Hassan El-Mossalamy Ibrahim Shibl El-Hallag,

Diolefinic antibacterial laser dye namely 1,4-Bis[2-(4-Pyridyl) Vinyl] Benzene (4PVB)have been investigated electrochemically using cyclic voltammetry, chronoamperometry, convolution and deconvolution voltammetry combined with digital simulation techniques at a platinum electrode in 0.1 mol / L Tetra Butyl Ammonium Perchlorate (TBAP) in  solvent 1,2-dichloroethane.  The diolefinic ...

اسچونمن , جی. , علوی, مهدی , کلدر, ای. ام. ,

The phase formation and solid solid solution system of Lithium Iron (II) Phosphate and Lithium Manganese (II) Phosphate using solid state reaction have been studied. The observed phases were identified by X-ray powder diffraction and Electrochemical measurements. The synthesised  phases show X-ray diffraction spectra typical of orthorhombic symmetry, space group Pmnb and are closely related to ...

Journal: :international archives of health sciences 0
f. ghadami environmental health engineering department, health school, kashan university of medical sciences, kashan, iran m. pourmousa environmental health engineering department, health school, kashan university of medical sciences, kashan, iran s. mosavi statistics & epidemiology department, health school, kashan university of medical sciences, kashan, iran d. rabbani post address: health school, kashan university of medical sciences, pezeshk boulevard, 5th kilometer of kashan-ravand road, kashan, iran. postal code: 8715973449

abstract aims: turbidity in higher than standard levels, indicates failure in the water treatment plant. an electrochemical disinfection process takes place through electricity transition between two or more electrodes. this research aimed to determine the reaction rate of electrochemical process for purification of polluted water. materials & methods: this is a bench scale, experimental study ...

Journal: :journal of physical & theoretical chemistry 2007
mohammad bagher pasha zanousi mohammad saber tehrani ardeshir kermani jilla khalighie

5-aminosalicylic acid (5-asa) is currently prepared by electrochemical reduction of 5-nitrosalicylic acid (5-nsa) in acidic media. in this work, electrolytic reduction of 5-nsa in alkaline media is presented. reactionconditions and parameters such as anode and cathode electrodes, electrolyte type, reaction time, temperature,current, and the ph for isolation of product are investigated. the yiel...

2014
Kenta Arai Kevin Watts Thomas Wirth

Electrochemical microreactors, which have electrodes integrated into the flow path, can afford rapid and efficient electrochemical reactions without redox reagents due to the intrinsic properties of short diffusion distances. Taking advantage of electrochemical microreactors, Kolbe electrolysis of di-and trifluoroacetic acid in the presence of various electron-deficient alkenes was performed un...

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