Raman study of Ba-doped ceria nanopowders
2007
Преузимање 🢃
Аутори
Radović, Marko B.Dohcevic-Mitrovic, Z.
Šćepanović, Maja
Grujić-Brojčin, Mirjana
Matović, Branko
Bošković, Snežana B.
Popvic, Z. V.
Чланак у часопису
Метаподаци
Приказ свих података о документуАпстракт
A series of Ce1-xBaxO2-y (5 LT = x LT = 0.20) nanometric powders were synthesized by self-propagating room temperature synthesis. XRD and Raman scattering measurements were used to characterize the samples. at room temperature. All the samples are solid solutions with fluorite type structure with an average crystallite size about 5 nm. The redshift and asymmetric broadening of the Raman F g mode can be well explained with combined confinement and strain effects because of the nanocrystalline powders nature. The appearance of the additional peaks at similar to 560 cm(-1) and similar to 600 cm(-1), are attributed to extrinsic and intrinsic O2- vacancies in ceria lattice. Raman spectra of temperature treated Ce0.80Ba0.20O2-delta sample revealed the instability of this system.
Кључне речи:
Ba doped ceria nanopowders / XRD method / Raman scattering / phase separationИзвор:
Science of Sintering, 2007, 39, 3, 281-286Финансирање / пројекти:
- Физика нискодимензионих и нанометарских структура и материјала (RS-MESTD-MPN2006-2010-141047)
DOI: 10.2298/SOS0703281R
ISSN: 0350-820X
WoS: 000254091200009
Scopus: 2-s2.0-67349093305
Колекције
Институција/група
VinčaTY - JOUR AU - Radović, Marko B. AU - Dohcevic-Mitrovic, Z. AU - Šćepanović, Maja AU - Grujić-Brojčin, Mirjana AU - Matović, Branko AU - Bošković, Snežana B. AU - Popvic, Z. V. PY - 2007 UR - https://vinar.vin.bg.ac.rs/handle/123456789/3382 AB - A series of Ce1-xBaxO2-y (5 LT = x LT = 0.20) nanometric powders were synthesized by self-propagating room temperature synthesis. XRD and Raman scattering measurements were used to characterize the samples. at room temperature. All the samples are solid solutions with fluorite type structure with an average crystallite size about 5 nm. The redshift and asymmetric broadening of the Raman F g mode can be well explained with combined confinement and strain effects because of the nanocrystalline powders nature. The appearance of the additional peaks at similar to 560 cm(-1) and similar to 600 cm(-1), are attributed to extrinsic and intrinsic O2- vacancies in ceria lattice. Raman spectra of temperature treated Ce0.80Ba0.20O2-delta sample revealed the instability of this system. T2 - Science of Sintering T1 - Raman study of Ba-doped ceria nanopowders VL - 39 IS - 3 SP - 281 EP - 286 DO - 10.2298/SOS0703281R ER -
@article{ author = "Radović, Marko B. and Dohcevic-Mitrovic, Z. and Šćepanović, Maja and Grujić-Brojčin, Mirjana and Matović, Branko and Bošković, Snežana B. and Popvic, Z. V.", year = "2007", abstract = "A series of Ce1-xBaxO2-y (5 LT = x LT = 0.20) nanometric powders were synthesized by self-propagating room temperature synthesis. XRD and Raman scattering measurements were used to characterize the samples. at room temperature. All the samples are solid solutions with fluorite type structure with an average crystallite size about 5 nm. The redshift and asymmetric broadening of the Raman F g mode can be well explained with combined confinement and strain effects because of the nanocrystalline powders nature. The appearance of the additional peaks at similar to 560 cm(-1) and similar to 600 cm(-1), are attributed to extrinsic and intrinsic O2- vacancies in ceria lattice. Raman spectra of temperature treated Ce0.80Ba0.20O2-delta sample revealed the instability of this system.", journal = "Science of Sintering", title = "Raman study of Ba-doped ceria nanopowders", volume = "39", number = "3", pages = "281-286", doi = "10.2298/SOS0703281R" }
Radović, M. B., Dohcevic-Mitrovic, Z., Šćepanović, M., Grujić-Brojčin, M., Matović, B., Bošković, S. B.,& Popvic, Z. V.. (2007). Raman study of Ba-doped ceria nanopowders. in Science of Sintering, 39(3), 281-286. https://doi.org/10.2298/SOS0703281R
Radović MB, Dohcevic-Mitrovic Z, Šćepanović M, Grujić-Brojčin M, Matović B, Bošković SB, Popvic ZV. Raman study of Ba-doped ceria nanopowders. in Science of Sintering. 2007;39(3):281-286. doi:10.2298/SOS0703281R .
Radović, Marko B., Dohcevic-Mitrovic, Z., Šćepanović, Maja, Grujić-Brojčin, Mirjana, Matović, Branko, Bošković, Snežana B., Popvic, Z. V., "Raman study of Ba-doped ceria nanopowders" in Science of Sintering, 39, no. 3 (2007):281-286, https://doi.org/10.2298/SOS0703281R . .