Dielectric properties of Bi-substituted LDHs synthesized by co-precipitation and sol-gel methods

• Autorzy: Sokol, Denis , Ivanov, Maksim , Salak, Andrei N. , Grigalaitis, Robertas , Banys, Juras , Kareiva, Aivaras
• Języki publikacji: EN

Abstrakty

EN

Magnesium-aluminum-bismuth layered double hydroxides (Mg₃Al_1-xBi_x; LDHs) were prepared using both coprecipitation and sol-gel methods. For the preparation of Mg/Al/Bi LDH by the co-precipitation method, the appropriate amounts of dissolved starting materials (Al(NO₃)₃·9H₂O, Mg(NO₃)₂·6H₂O and Bi(NO₃)₃·5H₂O) were mixed with a solution of NaHCO₃:NaOH. In the sol-gel processing, the precursor Mg–Al–Bi–O gels were synthesized using the same starting materials and ethylene glycol as complexing agent. The mixed-metal oxides obtained by subsequent heating of Mg–Al–Bi–O gels at 650 °C were reconstructed to Mg₃Al_1-xBi_x LDHs in water at 80 °C. All the synthesized products were characterized by X-ray diffraction (XRD) analysis, scanning electron microscopy (SEM) and dielectric measurements.

Słowa kluczowe

EN

layered double hydroxide; bismuth substitution; co-precipitation; sol-gel; dielectric properties

• Czasopismo: Materials Science Poland
• Rocznik: 2019
• Tom: Vol. 37, No. 2
• Strony: 190--195
• Opis fizyczny: Bibliogr. 18 poz., rys.

Twórcy

autor

Sokol, Denis

• Institute of Chemistry, Vilnius University, Naugarduko 24, LT-03225 Vilnius, Lithuania

autor

Ivanov, Maksim

• Faculty of Physics, Vilnius University, LT-10222 Vilnius, Lithuania

autor

Salak, Andrei N.

• Department of Materials and Ceramic Engineering/CICECO, University of Aveiro, 3810-193 Aveiro, Portugal

autor

Grigalaitis, Robertas

• Faculty of Physics, Vilnius University, LT-10222 Vilnius, Lithuania

autor

Banys, Juras

• Faculty of Physics, Vilnius University, LT-10222 Vilnius, Lithuania

autor

Kareiva, Aivaras

• Institute of Chemistry, Vilnius University, Naugarduko 24, LT-03225 Vilnius, Lithuania,

Bibliografia

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).

Identyfikatory

DOI

10.2478/msp-2019-0035