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    Ultrafine Ir-IrO2 nanoparticles for decoration of cobalt phthalocyanine films as an active component for highly sensitive detection of nitric oxide / S. I. Dorovskikh, D. D. Klyamer, P. O. Krasnov [et al.] // Mater. Sci. Eng. B: Solid-State Mater. Adv. Technol. - 2025. - Vol. 314. - Ст. 118074, DOI 10.1016/j.mseb.2025.118074. - Cited References: 69. - The work devoted to the study of the sensor response to NO as well as DFT calculations were supported by the Ministry of Science and Higher Education of Russian Federation (projects 121031700314-5 and FSRZ 2023-0006) . - ISSN 0921-5107. - ISSN 1873-4944
   Перевод заглавия: Ультрамалые наночастицы Ir-IrO2 для декорирования пленок фталоцианина кобальта в качестве активного компонента для высокочувствительного обнаружения оксида азота
Кл.слова (ненормированные):
Ir-IrO nanopaticles -- Cobalt phthalocyanine films -- NO detection -- NOx detection -- DFT calculations
Аннотация: Nitric oxide is an important molecule that plays a crucial role in regulating physiological processes in mammals. To develop a sensitive method for detecting NO, new heterostructures based on cobalt phthalocyanine (CoPc) films decorated with Ir-IrO2 nanoparticles were considered as active layers of chemiresistive sensors for the direct NO detection. Within deposition conditions, Ir-IrO2 nanoparticles with an Ir concentration of 0.48–1.5 µg/cm2, a fraction of IrO2 phase of 10–20 %, and particles sizes from 1 to 3 to 14 nm were obtained on the surface of CoPc films. The influence of these parameters of Ir-IrO2 particles on the sensor response of Ir-IrO2/CoPc heterostructures to NO was investigated using theoretical and practical approaches. Based on DFT calculations, an electronic sensitization mechanism of NO detection by Ir-IrO2/CoPc heterostructures was proposed. These heterostructures are able to detect of NO gas at the ppb level and show the selectively to NOx in the presense of other gases.

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Держатели документа:
Nikolaev Institute of Inorganic Chemistry, SB RAS, Lavrentiev ave. 3, Novosibirsk 630090 Russia
International Research Center of Spectroscopy and Quantum Chemistry, Siberian Federal University, Krasnoyarsk 660074 Russia
Qingdao Innovation and Development Center, Harbin Engineering University, Qingdao 266500 China
Rzhanov Institute of Semiconductor Physics SB RAS, 13 Lavrentiev Ave. 630090 Novosibirsk, Russia
Boreskov Institute of Catalysis SB RAS, Lavrentiev Ave. 5 630090 Novosibirsk, Russia
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Akademgorodok 50/38, Krasnoyarsk 660036 Russia
Laboratory of Electron Microscopy, Siberian Federal University, 79 Svobodny pr., Krasnoyarsk 660041 Russia

Доп.точки доступа:
Dorovskikh, S. I.; Klyamer, D. D.; Krasnov, P. O.; Shutilov, R. A.; Nasimov, D. A.; Prosvirin, I. P.; Volchek, V. V.; Zharkov, S. M.; Жарков, Сергей Михайлович; Khubezhov, S. A.; Morozova, N. B.; Basova, T. V.
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Decoration of carbon nanomaterial powders with dispersed platinum metal particles / V. G. Isakova [et al.] // Russ. J. Appl. Chem. - 2018. - Vol. 91, Is. 7. - P. 1209-1216, DOI 10.1134/S1070427218070212. - Cited References: 22. - The study was performed with the support and equipment of the Center for Shared Use of the Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences. . - ISSN 1070-4272. - ISSN 1608-3296

РУБ Chemistry, Applied
Рубрики:
NANOPARTICLES
   PALLADIUM
   FULLERENE
   ELECTRODE
   NANOTUBES
   OXIDATION
Кл.слова (ненормированные):
carbon nanomaterials -- platinum metal nanoparticles -- in situ one-step method
Аннотация: Carbon nanomaterials (fullerite, detonation nanodiamonds, Taunit, fullerenol, fullerene-containing black) were decorated with platinum group metal nanoparticles in situ in one step by low-temperature combustion (~250–270°С) of a powdered mixture of platinum metal acetylacetonate [Pt-M(асас)n, Pt-М = Pt(II), Pd(II), Rh(III), Ir(III), acac = CH3COCHCOCH3, n is the oxidation state of Pt-М] with carbon nanomaterials in air. As shown by thermal analysis, the process is based on thermal oxidative degradation of the organometallic complex, catalyzed by carbon nanomaterials, with oxidation (combustion) of the organic moiety and release of the metal into the condensed phase. The thermal process in an open system occurs in the glowing mode (210–250°С); the size of the nanoparticles formed is 7–30 nm. Under the conditions restricting the air access to the reaction mixture and free outflow of gaseous products formed by oxidation of acac ligands, the nanoparticle size decreases to 3–10 nm. The particle size depends on the metal amount in the initial powder mixture and on the support morphology.

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Публикация на русском языке Декорирование порошков углеродных наноматериалов дисперсными частицами платиновых металлов [Текст] / В. Г. Исакова [и др.] // Журн. прикл. химии. - 2018. - Т. 91 № 7. - С. 1040-1048

Держатели документа:
Russian Acad Sci, Kirenksy Inst Phys, Separate Dept, Fed Res Ctr,Krasnoyarsk Sci Ctr,Siberian Branch, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Russian Acad Sci, Fed Res Ctr, Krasnoyarsk Sci Ctr, Siberian Branch, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Isakova, V. G.; Исакова, Виктория Гавриловна; Osipova, I. V.; Осипова, Ирина Владимировна; Dudnik, A. I.; Дудник, Александр Иванович; Cherepakhin, A. V.; Черепахин, Александр Владимирович; Zharikova, N. V.; Nemtsev, I. V.; Volochaev, M. N.; Center for Shared Use of the Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences
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Peculiarities of the decoration of carbon nanotubes with transition metal atoms / A. A. Kuzubov [et al.] // Russ. J. Phys. Chem. B. - 2011. - Vol. 5, Is. 1. - P. 163-167, DOI 10.1134/S1990793111010076. - Cited References: 12. - The authors thank Interdepartmental Supercomputer Center, Russian Academy of Sciences, for the possibility of using a cluster computer, and Siberian Federal University for providing a supercomputer, on which quantum-chemical calculations were performed. This work was financially supported by the Analytic Departmental Special-Purpose Program "The Development of the Scientific Potential of the Higher School (2009-2010)" (project no. 2.1.1/2584). . - ISSN 1990-7931

РУБ Physics, Atomic, Molecular & Chemical
Рубрики:
INITIO MOLECULAR-DYNAMICS
SURFACE
ENERGY
Кл.слова (ненормированные):
carbon nanotubes -- decoration -- transition metal atoms -- Carbon nanotubes -- Decoration -- Transition metal atoms
Аннотация: Carbon nanotubes decorated with transition metal, in particular, scandium, titanium, and vanadium, atoms offer promise for use in various applied science fields. We report the results of quantum-chemical calculations of the structure of the metallic layer of atoms of these metals coating the surface of (9, 0) and (10, 0) carbon nanotubes. It was shown that uniform one-layer coating by scandium and titanium could form on nanotubes with diameters no less than the diameter of (10, 0) nanotubes. Vanadium atoms could not uniformly cover nanotubes irrespective of their diameters.

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Держатели документа:
[Kuzubov, A. A.
Kozhevnikova, T. A.
Artyushenko, P. V.] Siberian Fed Univ, Krasnoyarsk, Russia
[Kuzubov, A. A.
Krasnov, P. O.
Popov, M. N.] Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
[Kuzubov, A. A.
Krasnov, P. O.] Siberian State Technol Univ, Krasnoyarsk, Russia
ИФ СО РАН
Siberian Federal University, Krasnoyarsk, Russian Federation
Kirenskii Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Siberian State Technological University, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Kuzubov, A. A.; Кузубов, Александр Александрович; Krasnov, P. O.; Краснов, Павел Олегович; Kozhevnikova, T. A.; Popov, M. N.; Artyushenko, P. V.
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