Bordering conditions determination for nanocomposites special properties

Abstract

The paper is devoted to determination of active nanoparticles sizes. Other particles bigger or smaller of calculated size limits are not demonstrated the special activity, on the example of catalytic elimination of environmental pollutants, namely, carbon monoxide, under ambient conditions low temperature, high humidity, the presence of anthropotoxins. Discusses basic understanding of catalysts used in environmental pollution abatement, in particular, high activity of nanocatalysts with certain sizes and lack of activity of catalysts particles with other sizes. Nevertheless it remains unclear why massive objects containing palladium, as well as true solutions are not effective as catalysts for low-temperature carbon monoxide oxidation. At the same time only palladium containing nanosystems having a narrow size range are effective. The submitted work is the first step in quantifying this range. It is hopefully this will assists to determine the causes of unusually high nanocatalysts efficiency.