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Information × Registration Number 0225U004370, (0124U004754) , R & D reports Title Innovative methods and means of rapid determination of pollutants based on hydrazine compounds entering the environment as a result of military operations and accidental spillage of rocket/aviation fuels popup.stage_title Розробка конструктиву та створення засобу для проточного аналізу на вміст сполук гідразину в навколишньому середовищі Head Linyucheva Olga V., Доктор технічних наук Registration Date 02-12-2025 Organization National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute» popup.description1 The goal of the project is to create innovative methods and electrochemical systems for the selective determination of the concentration of hydrazine compounds at the MPC level in six-component gas and water environments, which will allow creating low-cost means of gas analytical systems for emergency notification and environmental monitoring on the basis of ïx. These developments will make it possible to improve the military and technical support of the Armed Forces and make Ukraine independent of imports in this product segment. popup.description2 Materials synthesized using special methods allowed obtaining nanoscale structured composite gas diffusion electrodes, which provided a developed and stable two-phase interface “electrolyte film on the surface of the electrocatalyst – gas environment”. Based on this, an original electrochemical system with 3D electrodes based on valve metals with catalysts made of semiconductor oxides and transition metal chalcogenides or framework organic compounds and mediators of the oxidation process of hydrazine compounds was developed. This allowed creating a sensor for determining the concentration of hydrazine, which reacts to the toxic component in 120 seconds and does not contain platinum or gold as an indicator electrode, which increased its selectivity. The use of a low-temperature proton-conducting electrolyte for a flow analysis device made it possible to minimize the problems of water mass transfer between a medium with 100% relative humidity and the aqueous electrolyte of a traditional electrochemical sensor and allowed the use of such an electrochemical system in flow analysis devices for aqueous media without the risk of uncontrolled increase in the volume of the electrolyte, which is typical for systems with an aqueous solution. The initial characteristics of such a device are determined by the properties of a hydrophobic gas-permeable membrane that separates the flow of the aqueous analyte and the electrochemical system. As a result of the research and scientific results obtained, methods for using the developed electrochemical devices to determine the concentration of hydrazine compounds in gas and aqueous media have been created. The scientific and technical task of creating domestic gas analytical equipment for monitoring gas and aqueous media for the content of hydrazine compounds, which in its technical and economic characteristics exceeds world standards, has been solved. Product Description popup.authors Vasyliev Heorhii S. Kosogin Oleksii V. Vorobiova Viktoriia І. Buket Oleksandr I Kushmyruk Andrii I popup.nrat_date 2025-12-02 Close