Nanostructured materials voltammetry

The electrochemical sensors with chemical recognition applied to pesticides analyses take advantage of the analytical features of the differential pulse voltammetry, square-wave voltammetry, and stripping voltammetry [26-30], which allow pesticides detection at residues levels. Current efforts are directed toward sensitivity and selectivity improvement by chemical modification of the electrode surface by molecularly imprinted polymers and micro- and nanostructured materials [31]. 

The electrochemical synthetic techniques of nanostructured conducting polymers are mainly carried out using galvanostat, potentiostat, and cyclic voltammetry (CV)- The advantages of electrochemical over chemical preparation are that the sizes of the nano-particles are easily controlled by the applied potential, current density, scan rate, and the number of cycles, and especially that the nanostmctured conducting polymer deposited on the electrode material can be directly used to investigate its electrochemical properties and in situ spectroelectrochemical characteristics. 

ABSTRACT Synthesis of nanostructured LiCoOj and TiO via microwave assisted and conventional hydrothermal methods, respectively, is presented. The physical properties of the resulting material are characterised via X-ray powder diffraction and scanning electron microscopy. Cyclic voltammetry and Galvanostatic Intermittent Titration Technique are used to study differences of the electrochemical properties compared to bulk material. 

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