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Atmospheric air is an important inexhaustible resource. It is essential for the life of all living organisms. The increase in emissions and the growth in the formation of greenhouse gases make the world community react sharply to the problem that has arisen. The decarbonization program began operating throughout the world. The goal of decarbonization is to eliminate carbon fuels completely. For some reason, a sharp transition to carbon-free fuels (green energy) is not possible in all countries. The emissions control of gases containing carbon, as well as other "greenhouse" gases, will be strengthened. Qualitative control and confidence in the result, obtained by monitoring in automatic mode, will be in demand in all areas of control actions. This paper presents research on the search of new sensitive materials for monitoring greenhouse gases used to detect carbon monoxide impurities in the ambient air and the air of the work area. The high adsorption activity of the proposed materials was confirmed by the results of the studies. Sensitive materials can be recommended for use as a nanofilm material for the determination of CO impurities in environmental gas sensors. [ABSTRACT FROM AUTHOR]

Surface properties (surface chemical and acid-base state) of binary and multicomponent semiconductors, i.e. CdTe-CdS and CdTe-ZnS systems components, were studied. The influence of mutual binary component CdTe on the surface acid-base state is demonstrated. Similar regularities in acid-base properties changes due to composition were determined, as well as their correlations with the regularities in bulk properties changes in the row of initial binary compounds. The conclusion was made that semiconductors - the components of the systems with acid surfaces (pHiso<7) - can be used as the materials for sensors on basic gases micro-impurities. The possibility of applying the stated regularities and correlations to facilitate the search for such materials is also noted. [ABSTRACT FROM AUTHOR]