Search academic texts

Information × Registration Number 0224U033055, (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 Створення наукових засад інноваційних методик синтезу наноструктурованих композиційних електрокаталізаторів та виготовлення електрохімічних комірок з 3D-електродами на основі каркасних органічних сполук і квазітвердого та матричного електролітів для визначення концентрації сполук гідразину Head Linyucheva Olga V., Доктор технічних наук Registration Date 17-12-2024 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  As a result of the implementation of the intermediate stage of the Project (2024), scientific and scientific and technical products were created, namely: methods for obtaining catalysts based on titanium and tantalum valve metal powders with deposited nanostructures of oxides and chalcogenides of transition metals (Ru, Co, Mo, Mn, Ni) and framework organic compounds based on adamantane; the choice of electrolytes was justified: matrix quasi-solid (based on lithium salts with a high osmotic coefficient), low-temperature solid proton-conducting (based on polyantimic acid hydrate) and based on ionic liquid; a method for manufacturing electrochemical cells with 3D-structured electrodes, which is based on layer-by-layer pressing of functional layers of electrochemical sensor cells for determining the concentration of hydrazine; nstallation of dynamic dosing of hydrazine in the concentration range from 0.1 to 10 mg/m3 with a relative error of 10% into the flow of analyzed air, which is a working standard of the second class for testing electrode materials; kinetic parameters of the hydrazine oxidation reaction (exchange current, reaction order, peak current potential, potential region of the selective course of the target process under the condition of low rates of side reactions) on 3D electrodes with the obtained catalysts. The mechanism and kinetics of anodic oxidation of hydrazine compounds on gas diffusion electrodes made of oxides and chalcogenides of transition metals or framework organic compounds deposited on valve metals in electrochemical systems based on matrix quasi-solid and low-temperature solid proton-conducting electrolytes have been determined. The use of catalysts created under the Project that are selective for the target reaction in combination with neutral and weakly acidic electrolytes allows the creation of sensors for the determination of hydrazine with high resolution and long operating time. Product Description popup.authors Buket Oleksandr I. Vasyliev Heorhii S. Vorobiova Victoriia I. Kosohin Oleksii V. Kushmyruk Andrii I. popup.nrat_date 2024-12-17 Close