Персона: Самотаев, Николай Николаевич
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Институт нанотехнологий в электронике, спинтронике и фотонике
Институт ИНТЭЛ занимается научной деятельностью и подготовкой специалистов в области исследования физических принципов, проектирования и разработки технологий создания компонентной базы электроники гражданского и специального назначения, а также построения современных приборов на её основе.
Наша основная цель – это создание и развитие научно-образовательного центра мирового уровня в области наноструктурных материалов и устройств электроники, спинтроники, фотоники, а также создание эффективной инновационной среды в области СВЧ-электронной и радиационно-стойкой компонентной базы, источников ТГц излучения, ионно-кластерных технологий материалов.
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- ПубликацияТолько метаданныеNew Mechanism for Depositing Platinum, Palladium, and Rhodium on Iron Metal Collector(2020) Kirichenko, A. S.; Nekhamin, S. M.; Samotaev, N. N.; Antonov, A.; Самотаев, Николай Николаевич© 2020, Springer Science+Business Media, LLC, part of Springer Nature.The effect of using an iron metal collector (MC) instead of copper on the degree of extraction of platinum, palladium, and rhodium is investigated in processing ceramic-based automotive catalysts in an electric arc furnace. The dependence of the effect of melt holding time on platinum group metal (PGM) deposition rate on a furnace hearth is analyzed. It is determined that during creation of a homogeneous mixture and introducing a metal collector (MС) into the catalyst composition effective Pt, Pd, Rh extraction occurs in the first 20 minutes of melt exposure. In spite of the twice as high density of platinum, the degree of its extraction is at the level for Pd and Rh, which points to the possibility of depositing platinum group metals (PGM) on the furnace hearth using the surface of coarser added MС powder. Testing of various methods for adding MС demonstrate the effectiveness of introduction to the melt surface. When a melt is heated above the melting temperature of platinum and palladium, the maximum degree of extraction is reached in 6 min. This shows that solid rhodium may passivate the surface of added MС. In order to create conditions when there is always an MС free surface to which solid rhodium may adhere, the rate coefficient is determined for effective dissolution of Rh in iron MС. Determination of this coefficient makes it possible to scale up results of laboratory studies and to predict the minimum time required for melting MС on the furnace hearth without loss of valuable component.
- ПубликацияТолько метаданныеThe detection of nitro compounds by using MIS-sensor(2019) Mikhailov, A. A.; Litvinov, A. V.; Samotaev, N. N.; Etrekova, M. O.; Литвинов, Артур Васильевич; Самотаев, Николай Николаевич; Этрекова, Майя Оразгельдыевна© 2019 Published under licence by IOP Publishing Ltd. It was shown the possibility of using MIS-sensors as detectors sensitive elements of the nitro-containing organic trace. The detection is carried out due to the nitro groups, formed during the reaction of pyrolysis of the nitro compounds molecules.
- ПубликацияТолько метаданныеPerspective technology for low-scale production of SMD MOX gas sensors(2019) Samotaev, N. N.; Oblov, K. Y.; Ivanova, A. V.; Самотаев, Николай Николаевич; Облов, Константин Юрьевич; Иванова, Анастасия Владимировна© 2019 Published under licence by IOP Publishing Ltd. The article discusses technological and economic aspects of small-scale production of gas MOX sensors. The main technical factors affecting the use of sensors in various applications are described. The perspective laser micro-milling technology for ceramic MEMS producing of microhotplate and SMD package for the MOX sensor is discussed.
- ПубликацияТолько метаданныеInvestigation of the synthesis of nanoparticles by the method of spark erosion with overvoltage of the discharge gap(2019) Sleptsov, V.; Savkin, A.; Berdnik, V.; Kukushkin, D.; Diteleva, A.; Samotaev, N.; Самотаев, Николай Николаевич© 2019 Published under licence by IOP Publishing Ltd. The silver nanoparticles were studied, which were obtained by spark erosion with an overvoltage of the discharge gap. Experimental results show the possibility of producing nanoparticles of conductive materials with a narrow size distribution.
- ПубликацияТолько метаданныеInvestigation of the deposition of metal nanoclusters on the surface of porous electrode materials by electrophoresis(2019) Sleptsov, V.; Savkin, A.; Kukushkin, D.; Diteleva, A.; Samotaev, N.; Самотаев, Николай Николаевич© 2019 Published under licence by IOP Publishing Ltd. The problems of coating on the entire surface of a highly porous electrode material based on activated carbon from a colloidal metal solution are considered. Experimental results demonstrated the possibility of metallization of porous carbon materials with nanoclusters of metals 2-10 nm in size by electrophoresis without reducing their initial porosity.
- ПубликацияТолько метаданныеInvestigation of electrochemical sensors with thin film nanocomposite Pt/C electrodes obtained by magnetron sputtering(2019) Medvedeva, E.; Baranov, A.; Samotaev, N.; Самотаев, Николай Николаевич© 2019 Published under licence by IOP Publishing Ltd. The electrochemical gas sensors with the film nanocomposite electrodes are produced and tested in several gas atmospheres. The experimental results demonstrate that a-C/Pt has high sensitivity and stability for continuous monitoring of carbon monoxide (CO) and hydrogen sulfide (H 2 S) gases compare to with main counterparts are mass-produced.
- ПубликацияТолько метаданныеAl2O3nanostructured gas sensitive material for silicon based low power thermocatalytic sensor(2019) Barsony, I.; Ducso, C.; Biro, F.; Samotaev, N. N.; Pisliakov, A.; Gorshkova, A.; Dzhumaev, P. S.; Самотаев, Николай Николаевич; Джумаев, Павел Сергеевич© 2019 Elsevier Ltd.Micro-catalytic gas sensors are essential devices for detection of combustive gases up to lower explosion limit (LEL). Micro-catalytic gas sensors capable to detect hydrocarbons below 50'mW power consumption at 550'°C operation temperature were developed by using a novel gas sensing material technique. Experiments were aiming at deposition of controlled volume and structure of the catalyst. Constant current method in a Wheatstone-bridge configuration was applied in functional tests of developed Al2O3 catalysts.
- ПубликацияТолько метаданныеCeramic microhotplates for low power metal oxide gas sensors(2019) Fritsch, M.; Mosch, S.; Vinnichenko, M.; Trofimenko, N.; Samotaev, N. N.; Oblov, K. Y.; Gorshkova, A.; Самотаев, Николай Николаевич; Облов, Константин Юрьевич© 2019 Elsevier Ltd.The progress of the Internet of Things stimulates the development of sensors of small size and low power consumption. Miniaturized metal-oxide semiconductor (MOX) gas sensors (e.g. methane, hydrogen or carbon monoxide detection) can be integrated into agro-industrial facilities such as livestock facilities, fish farming, forestry, food-storage and horticulture, where they support future-oriented plant production (smart agriculture). The central part of a MOX gas sensor is a micro-hotplate, which is mainly responsible for the sensor power consumption at operating temperatures from 450'°C to 600'°C. Under harsh environmental conductions, ceramic materials are the best choice for the micro-hotplate substrate and sensor housing (ceramic MEMS) in combination with platinum metallization for the heater. To realize such gas sensors with low power consumption (<200 mW) were developed of miniaturized printable heaters on ultra-thin ceramic membranes.
- ПубликацияТолько метаданныеSnO2-Pd as a Gate Material for the Capacitor Type Gas Sensor(2019) Samotaev, N.; Oblov, K.; Litvinov, A.; Etrekova, M.; Самотаев, Николай Николаевич; Облов, Константин Юрьевич; Литвинов, Артур Васильевич; Этрекова, Майя Оразгельдыевна© 2019 IEEE.The article describes the result of the use SnO2-Pd thin films as a gate for structure measured ppb range of NO2 gas by the capacitive method. The technological aspects of fabrication SnO2-Pd gate and one comparison by metrological parameters with the classical Pd gate field effect sensor are discussed. The use of SnO2-Pd material allows improvement in sensitivity of NO2 by an order of magnitude compare the classical Pd based gate field effect sensors.
- ПубликацияТолько метаданныеRapid prototyping of mox gas sensors in form-factor of smd packages(2019) Samotaev, N.; Oblov, K.; Ivanova, A.; Gorshkova, A.; Podlepetsky, B.; Самотаев, Николай Николаевич; Облов, Константин Юрьевич; Иванова, Анастасия Владимировна; Подлепецкий, Борис Иванович© 2019 IEEE.this work discusses the design of flexible laser micromilling technology for fast prototyping metal oxide based (MOX) gas sensors in SMD packages as a alternative to traditional silicon clean-room technologies. By laser micromilling technology possible to fabricate custom Micro Electro Mechanical System (MEMS) microhotplate platform and also SMD packages for MOX sensor, that gives complete solution for integration one in devices using IoT conception.