Abstract
Abstract Nano-structured Cu-Cr-O-based catalysts were successfully prepared by Solution Combustion Synthesis (SCS), and it has been found that their physical properties and atomic structure depend (in a complex way) on the initial composition of SCS processing, that the temperature of combustion and composition of initial mixture influences metal concentration in the nanocomposite, and that metal formation is going through metal oxide reduction by NO, H 2 , CO. Presence of CO, NH 3 and H 2 in the gas phase, during SCS, was determined chromatographically. Connection between structural changes during reaction and properties of final nanocomposite material was determined. The catalysts were characterized by XRD, SEM/EDX, and their catalytic activity has been determined in CO oxidation. The pore structure of the samples was calculated with the Barrett-Joyner-Halenda (BJH) academic model, and the specific surface area was calculated with the Brunauer-Emmett-Teller (BET) adsorption equation. The specific surface area of the catalysts is varied between 10 m 2 /g and 37 m 2 /g. Understanding the interrelationships between activity of catalyst and the ensuing atomic structure has allowed a degree of optimization of the catalytic properties of the new catalysts.
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