Simple, low-cost and acid-resistant carbon-based screen-printed electrodes (SPEs) addressed to detection of hexavalent chromium species, Cr(VI), in sulfuric acid at pH about 1, were prepared and characterized. Working and counter electrodes were prepared jointly on the same substrate in a single strip (working-counter electrodes pair). The batch printing process allowed obtaining many working-c...

Polyacrylonitrile (PAN) is among the most common polymer materials in world thanks to its versatility a wide range of applications. Of importance this work use electrochemical cells. PAN has seen as separator material and binder lithium-ion Expanding upon innovations made recent decades for electrodepositing onto conductive surfaces, details methods used apply thin coating graphite composite el...

In recent years, many studies have focused on the active materials of anodes to improve the performance of LIBs, while limited attention has been given to polymer binders, which act as inactive ingredients. However, polymer binders have amazing influence on the electrochemical performance of anodes. Herein, to investigate the binding performance between MCMB artificial graphite and the copper c...

background: high concentration of salt makes biological treatment impossible due to bacterial plasmolysis. the present research studies the process of electrochemical oxidation efficiency and optimal levels as important factors affecting ph, salt concentration, reaction time and applied voltage. methods: the sample included graphite electrodes with specifications of 2.5 cm diameter and 15 cm he...

In the work, carbon nanostructures (CNS) were synthesized on a plasma chemical plant using graphite electrodes SIGE (Special Impregnated Graphite Electrodes) and FGDG-7 (Fine-grained dense graphite) in helium environment. experiments, it was established that of brand are suitable for synthesis CNS by electric arc method. addition, experiments indicate gas environment allows creation centimeter ...

The electrochemical reduction of 1-([(4-halophenyl)imino]methyl)-2-naphthols on graphite electrodes was studied using cyclic voltammetry, chronoamperometry, constant-potential coulometry and preparative constant-potential electrolysis techniques. The data revealed that the reduction on graphite was irreversible and followed an EC mechanism. The diffusion coefficients and the number of electrons...

Here we report on the design and study of a biofuel cell consisting of a glucose oxidase-based anode (Aspergillus niger) and a laccasebased cathode (Trametes versicolor) using osmium-based redox polymers as mediators of the biocatalysts’ electron transfer at graphite electrode surfaces. The graphite electrodes of the device are modified with the deposition and immobilization of the appropriate ...

Screen printed electrodes (SPEs) have been prepared in the Biosensor Lab @ ENEA, according to different layouts and configurations, i.e. front-back or concentric geometry. Different pastes and composition have been tested depending on the application and requirements for flow or batch measurements. In order to optimize the quality of the electrochemical response, graphite pastes and metal doped...

Developed nanostructured innovative carbon materials (nano graphite) have a unique combination of properties. These include: high electronic conductivity, magnetic properties, level adhesion and cohesion low density. Using these properties nano graphite allow fabricating the electrode for batteries without binder, effectively modifying electrodes, which affect mechanism redox electrochemical pr...