Investigation of the residual stresses effect on the magnetic properties of CuO nanoparticles synthesized in a low-pressure arc discharge plasma

Карпов, И. В.; Ушаков, А. В.; Demin, V. G.; Shaihadinov, A. A.; Демченко, А. И.; Fedorov, L. Yu.; Гончарова, Э. А.; Abkaryan, A. K.

doi:10.1016/j.jmmm.2019.165492

Cited by 16 publications

(3 citation statements)

References 26 publications

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“…The percentage of oxygen had no effect on the CSR values. Here, the value of the total pressure plays a decisive role, as can be seen in more detail in previous works [15,[17][18][19]. In addition, these papers compare the results calculated from X-ray radiographs of the average size of the CSR with the results of transmission electron microscopy.…”

Section: Methodsmentioning

confidence: 83%

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Investigation of the effect of oxygen partial pressure on the phase composition of copper oxide nanoparticles by vacuum arc synthesis

et al. 2022

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Copper oxide nanoparticles were obtained in the plasma of a low-pressure arc discharge. The effect of the partial pressure of oxygen (10-40%) on the physical properties of the deposited nanoparticles has been studied. X-ray diffraction analysis shows that the cubic structure of Cu2O changes to monoclinic CuO with increasing O2 pressure. The results of Raman spectroscopy further confirmed the phase variations of copper-based oxide nanoparticles. X-ray photoelectron spectroscopy confirmed the change in the binding energy in the oxidation state of nanoparticles. The optical band gap of the deposited Cu2O is 2.12 eV, while that of CuO is 1.79-1.82 eV. Keywords: vacuum arc, oxides, nanoparticles, plasma-chemical reactions.

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Section: Methodsmentioning

confidence: 83%

“…The experimental setup and the dependence of powder properties on atomization conditions are discussed in detail in [15][16][17][18]. Copper oxide nanoparticles were deposited on a stainless steel substrate by arc sputtering using a M0 copper cathode.…”

Section: Methodsmentioning

confidence: 99%

Investigation of the effect of oxygen partial pressure on the phase composition of copper oxide nanoparticles by vacuum arc synthesis

et al. 2022

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“…Экспериментальная установка и зависимость свойств порошка от условий распыления подробно обсуждаются в [15][16][17][18] Оптические измерения проводились на спектрофотометре Perkin Elmer Lambda 950 с получением спектров пропускания. Образцы для исследования были приготовлены совместным с бромидом калия и снятыми с подложки наночастицами (в соотношении 1 : 100) прессовании таблеток диаметром 13 mm и толщиной∼ 0.55 mm.…”

Section: методика экспериментаunclassified

Исследование Влияния Парциального Давления Кислорода На Фазовый Состав Наночастиц Оксида Меди Вакуумно-Дугового Синтеза

Ушаков¹,

Карпов²,

Федоров³

et al. 2021

Журнал Технической Физики

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Efficient room temperature carbon dioxide gas sensor based on barium doped CuO thin films

et al. 2023

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For a safe environment, harmful-gas sensors of low cost and high performance are essential. For CO2 gas sensing applications, Ba-doped CuO thin films with 4 mol% and 6 mol% Ba were produced on glass substrates using the successive ionic layer adsorption and reaction approach. Utilizing various techniques, crystallographic structures, nanomorphologies, and elemental compositions were examined to assess the impact of doping on the characteristics of the films. According to the structural and morphological analyses, the nanocrystalline films consisted of irregularly shaped nanoparticles, which assembled to form a rough surface with unequal grain sizes. Because of its nanoporous nature, the CuO:6% Ba thin film exhibited the most substantial nanomorphological change and the highest gas sensing capability. At varied CO2 gas flow rates, the maximum sensor response (9.4%) and Rair/RCO2 ratio (1.12) at room temperature (RT = 30 °C) were observed at 100 SCCM. By optimizing the sensor’s operating temperature, the sensor response value reached 82.2% at 150 °C, which is approximately eight times the value at RT. Selectivity, reusability, repeatability, detection limit, and quantification limit were all tested. It shows excellent response and recovery times of 5.6 and 5.44 s. In comparison to prior literature, the improved sensor is suited for use in industrial applications. Graphical abstract

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Investigation of the residual stresses effect on the magnetic properties of CuO nanoparticles synthesized in a low-pressure arc discharge plasma

Cited by 16 publications

References 26 publications

Investigation of the effect of oxygen partial pressure on the phase composition of copper oxide nanoparticles by vacuum arc synthesis

Investigation of the effect of oxygen partial pressure on the phase composition of copper oxide nanoparticles by vacuum arc synthesis

Исследование Влияния Парциального Давления Кислорода На Фазовый Состав Наночастиц Оксида Меди Вакуумно-Дугового Синтеза

Efficient room temperature carbon dioxide gas sensor based on barium doped CuO thin films

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