| Title |
Dielectric properties of Bi-substituted LDHs synthesized by co-precipitation and sol-gel methods |
| Authors |
Sokol, Denis ; Ivanov, Maksim ; Salak, Andrei N ; Grigalaitis, Robertas ; Banys, Jūras ; Kareiva, Aivaras |
| DOI |
10.2478/msp-2019-0035 |
| Full Text |
|
| Is Part of |
Materials Science-Poland.. Warsaw : Walter de Gruyter Poland. 2019, vol. 37, iss. 2, p. 190-195.. ISSN 2083-1331. eISSN 2083-134X |
| Keywords [eng] |
layered double hydroxide ; bismuth substitution ; co-precipitation ; sol-gel ; dielectric properties |
| Abstract [eng] |
Magnesium-aluminium-bismuth layered double hydroxides (Mg3Al1-xBix; LDHs) were prepared using both co-precipitation and sol-gel methods. For the preparation of Mg/Al/Bi LDH by the co-precipitation method, the dissolved appropriate amount of starting materials (Al(NO3)3.9H2O, Mg(NO3)2.6H2O and Bi(NO3)3.5H2O) was 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 obtained mixed-metal oxides obtained by subsequent heating of Mg-Al-Bi-O gels at 650 °C were reconstructed to Mg3Al1-xBix 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. |
| Published |
Warsaw : Walter de Gruyter Poland |
| Type |
Journal article |
| Language |
English |
| Publication date |
2019 |
