The local atomic and electronic structure of PANI / Cu nanocomposite was studied by X-ray absorption spectroscopy. It was found that as a result of the formation of a nanocomposite, the polymer chain is transformed by π electronic subsystem and changes local structure of copper. Polyaniline in composite is partially oxidized and protonated.
Keywords: polyaniline, polymer-inorganic composites, X-ray absorption spectroscopy, electronic structure, conductive polymers
This paper is devoted to development of gas sensors air control. It is shown that copper oxides are the promising materials for high sensitive sensors. The CuOx film material was syntheses by means of citrate sol-gel technique. The sensors fabricated on the basis of CuOx film material were sensitive to ammonia gas in the range of 25-150 ppm. Working temperature was determined as 180 °C. Such sensors can be used for work area air control of industrial enterprises.
Keywords: gas-sensitive element, atmospheric air, sensors, copper oxides