نتایج جستجو برای: electrochemical parameters

تعداد نتایج: 627481  

Journal: :The Review of scientific instruments 2013
John M Gregoire Chengxiang Xiang Xiaonao Liu Martin Marcin Jian Jin

High throughput electrochemical techniques are widely applied in material discovery and optimization. For many applications, the most desirable electrochemical characterization requires a three-electrode cell under potentiostat control. In high throughput screening, a material library is explored by either employing an array of such cells, or rastering a single cell over the library. To attain ...

2017
Bahadır K. Körbahti Pelin Demirbüken

Electrochemical oxidation of resorcinol in aqueous medium using boron-doped diamond anode (BDD) was investigated in a batch electrochemical reactor in the presence of Na2SO4 supporting electrolyte. The effect of process parameters such as resorcinol concentration (100-500 g/L), current density (2-10 mA/cm2), Na2SO4 concentration (0-20 g/L), and reaction temperature (25-45°C) was analyzed on ele...

2016
R. F. Balderas-Valadez V. Agarwal

Porous silicon (PSi) is a versatile nanomaterial which has been utilized in several applications such as optical switching, drug delivery and sensors since its discovery in 1991. This material has been extensively investigated as an optical sensor due to its high surface area, high sensitivity and variety of optical transduction possibilities, e.g. changes in uorescence or reectance (interfer...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 1990
mohammad ali nabirahni

presently there are a number of fine and sensitive methods for determining chemical or biochemical substance among which bio electrodes represent the most recent development. bioelectrodes consist of biologically active materials (e.g enzyme, antibody, whole cell or cell fragments) held in close proximity to a suitable electrochemical transducer that sense specific electroactive enzyme substrat...

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...

Journal: :journal of physical & theoretical chemistry 2012
m. shahidi e. sasaei m. ganjehkaviri m.r. gholamhosseinzadeh

vanillin offers interesting possibilities for corrosion inhibition because of its safe use and highsolubility in water. the effect of vanillin on the corrosion inhibition of aisi 304 stainless steel in0.5m h2so4 solution has been studied using potentiodynamic polarization and electrochemicalimpedance spectroscopy (eis). furthermore, this paper demonstrates that the electrochemical noise(en) tec...

2012
Jean-Sébastien Filhol Marie-Liesse Doublet Charles Gerhardt

We present a theoretical study of the structural response of model water monolayers on a Pd(111) surface upon various electrochemical conditions. Whereas the water molecules pointing toward the vacuum are mostly electrochemically inactive, those lying parallel to the surface undergo an oxidative adsorption under oxidizing conditions, and those pointing toward the surface show a reductive adsorp...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بیرجند 1389

there has been a gradual shift of focus from the study of rule systems, which have increasingly been regarded as impoverished, … to the study of systems of principles, which appear to occupy a much more central position in determining the character and variety of possible human languages. there is a set of absolute universals, notions and principles existing in ug which do not vary from one ...

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