Исследование свойств сложного оксида Bi2Co1/3Cu1/3Ni1/3Nb2O9+Δ со структурой пирохлора

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Исследование свойств сложного оксида Bi2Co1/3Cu1/3Ni1/3Nb2O9+Δ со структурой пирохлора. / Petrakov, A. P.; Badanina, K. A.; Selyutin, A. A.; Koroleva, A. V.; Nekipelov, S. V.; Makeev, B. A.; Zhuk, N. A.

в: ЗАВОДСКАЯ ЛАБОРАТОРИЯ. ДИАГНОСТИКА МАТЕРИАЛОВ, Том 91, № 5, 27.05.2025, стр. 38-44.

Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование

Author

Petrakov, A. P. ; Badanina, K. A. ; Selyutin, A. A. ; Koroleva, A. V. ; Nekipelov, S. V. ; Makeev, B. A. ; Zhuk, N. A. / Исследование свойств сложного оксида Bi2Co1/3Cu1/3Ni1/3Nb2O9+Δ со структурой пирохлора. в: ЗАВОДСКАЯ ЛАБОРАТОРИЯ. ДИАГНОСТИКА МАТЕРИАЛОВ. 2025 ; Том 91, № 5. стр. 38-44.

BibTeX

@article{d2aef053ac324eba89ac94df8778155c,

title = "Исследование свойств сложного оксида Bi2Co1/3Cu1/3Ni1/3Nb2O9+Δ со структурой пирохлора",

abstract = "Bismuth-containing monodoped pyrochlores have promising photocatalytic and dielectric properties. The paper presents the results of studying the properties of multielement pyrochlore containing transition 3d-elements in equivalent amounts. Mixed oxide pyrochlore of the composition Bi2Co1/3Cu1/3Ni1/3Nb2O9+{\"A} (sp. gr. Fd-3m, a = 10.5378 ± 6 {\AA}) was synthesized by the solid-phase reaction method. The chemical state of transition element cations in the oxide pyrochlore was estimated by X-ray photoelectron spectroscopy (XPS). The parameters of the Bi5d, Nb3d, Co2p, Ni2p, Cu2p XPS spectra for the mixed pyrochlore were compared with the parameters of transition element oxides. The content of Cu (I, II) cations was determined based on the analysis of the relative intensity of peaks in the Cu2p spectrum. It has been established that for complex pyrochlore a characteristic shift of Bi4f- and Nb3d-spectra to the region of lower energies by 0.25 and 0.65 eV, respectively, is observed. The width of the forbidden band of pyrochlore for the direct allowed most intense electronic transition is 1.1 eV. The obtained results can be used to improve the technology of manufacturing multilayer ceramic capacitors and microwave dielectric materials.",

keywords = "band gap, electronic transition, pyrochlore oxide, solid-phase reaction, spectra",

author = "Petrakov, {A. P.} and Badanina, {K. A.} and Selyutin, {A. A.} and Koroleva, {A. V.} and Nekipelov, {S. V.} and Makeev, {B. A.} and Zhuk, {N. A.}",

year = "2025",

month = may,

day = "27",

doi = "10.26896/1028-6861-2025-91-5-38-44",

language = "русский",

volume = "91",

pages = "38--44",

journal = "Industrial Laboratory. Materials Diagnostics",

issn = "1028-6861",

publisher = "Ministerstvo ernoj metallurgii SSSR",

number = "5",

}

RIS

TY - JOUR

T1 - Исследование свойств сложного оксида Bi2Co1/3Cu1/3Ni1/3Nb2O9+Δ со структурой пирохлора

AU - Petrakov, A. P.

AU - Badanina, K. A.

AU - Selyutin, A. A.

AU - Koroleva, A. V.

AU - Nekipelov, S. V.

AU - Makeev, B. A.

AU - Zhuk, N. A.

PY - 2025/5/27

Y1 - 2025/5/27

N2 - Bismuth-containing monodoped pyrochlores have promising photocatalytic and dielectric properties. The paper presents the results of studying the properties of multielement pyrochlore containing transition 3d-elements in equivalent amounts. Mixed oxide pyrochlore of the composition Bi2Co1/3Cu1/3Ni1/3Nb2O9+Ä (sp. gr. Fd-3m, a = 10.5378 ± 6 Å) was synthesized by the solid-phase reaction method. The chemical state of transition element cations in the oxide pyrochlore was estimated by X-ray photoelectron spectroscopy (XPS). The parameters of the Bi5d, Nb3d, Co2p, Ni2p, Cu2p XPS spectra for the mixed pyrochlore were compared with the parameters of transition element oxides. The content of Cu (I, II) cations was determined based on the analysis of the relative intensity of peaks in the Cu2p spectrum. It has been established that for complex pyrochlore a characteristic shift of Bi4f- and Nb3d-spectra to the region of lower energies by 0.25 and 0.65 eV, respectively, is observed. The width of the forbidden band of pyrochlore for the direct allowed most intense electronic transition is 1.1 eV. The obtained results can be used to improve the technology of manufacturing multilayer ceramic capacitors and microwave dielectric materials.

AB - Bismuth-containing monodoped pyrochlores have promising photocatalytic and dielectric properties. The paper presents the results of studying the properties of multielement pyrochlore containing transition 3d-elements in equivalent amounts. Mixed oxide pyrochlore of the composition Bi2Co1/3Cu1/3Ni1/3Nb2O9+Ä (sp. gr. Fd-3m, a = 10.5378 ± 6 Å) was synthesized by the solid-phase reaction method. The chemical state of transition element cations in the oxide pyrochlore was estimated by X-ray photoelectron spectroscopy (XPS). The parameters of the Bi5d, Nb3d, Co2p, Ni2p, Cu2p XPS spectra for the mixed pyrochlore were compared with the parameters of transition element oxides. The content of Cu (I, II) cations was determined based on the analysis of the relative intensity of peaks in the Cu2p spectrum. It has been established that for complex pyrochlore a characteristic shift of Bi4f- and Nb3d-spectra to the region of lower energies by 0.25 and 0.65 eV, respectively, is observed. The width of the forbidden band of pyrochlore for the direct allowed most intense electronic transition is 1.1 eV. The obtained results can be used to improve the technology of manufacturing multilayer ceramic capacitors and microwave dielectric materials.

KW - band gap

KW - electronic transition

KW - pyrochlore oxide

KW - solid-phase reaction

KW - spectra

UR - https://www.mendeley.com/catalogue/66fffeae-68ce-3139-9d93-b465856f2112/

U2 - 10.26896/1028-6861-2025-91-5-38-44

DO - 10.26896/1028-6861-2025-91-5-38-44

M3 - статья

VL - 91

SP - 38

EP - 44

JO - Industrial Laboratory. Materials Diagnostics

JF - Industrial Laboratory. Materials Diagnostics

SN - 1028-6861

IS - 5

ER -

ID: 145044773