Chemical threat detectors based on multisensor arrays and selective porous concentrators

Detectors of hazardous chemicals based on line sensors and selective porous materials.

    Synthesized by sol-gel method, new gas sensitive nanocrystalline materials - nanocomposites M₁O M₂O - based oxide semiconductor M₁O = SnO₂, In₂O₃ and catalysts M₂O = Fe₂O₃, La₂O₃, V₂O₅, CuO, Co₃O₄ and MoO₃. The compositions of the materials with selective sensitivity to organophosphorus compounds. For all synthesized complex porous oxides studied the process of concentration of toxic gases NH₃, H₂S, NO₂. The optimal conditions for the concentration of gases obtained.

    By scanning and transmission electron microscopy, X-ray diffraction and electron spectroscopy systematic investigation of morphology, phase structure and surface condition of the crystals depending on the material composition and size of crystallite .