SINTESIS SENYAWA AURIVILLIUS LAPIS EMPAT Sr1-xBi3+xLaTi4-xMnxO15 DENGAN METODE HIDROTERMAL
Abstract: The Aurivillius
phases are a metal oxide type
compounds with general formula
[Bi2O2]2+. [An-1BnO3n+1]2-. They grow
regularly between fluorite-like
[Bi2O2]2+ layers and
perovskite [An-1BnO3n+1]2- layers.
Aurivillius phases can perform
as a magnetoelectric compouds
due to their structure can
be built by
combination of ferroelectric
cation (d0) and
magnetic kation (dn)
in octahedral of perovskite layer. In this study, it has been
synthesized four-layers Aurivillius, Sr1-xBi3+xLaTi4-xMnxO15 (x
= 0; 0,2;
0,4; 1) by
hydrothermal method. The
products have been characterized by X-Ray diffraction
(XRD). The XRD data were refined by Le Bail tecnique using Rietica program.
The sample with x =
0, 0.2, and
0.4 formed four-layers
Aurivillius phase, however still
containing another phase predicted as
perovskite phase. While the sample with x =
1 showed three-layers
Aurivillius and La5Ti5O17
phases. The four-layers
of Sr1-xBi3+xLaTi4-xMnxO15 (x = 0; 0,2; 0,4; 1) have ortorombic symmetry with A21am space
group. The morfology of these sampels analyzed by Scanning Electron Microcopy
(SEM) showed the plate and grains as the characteristic of Aurivillius
phase.
Penulis: Erni Pakpahan, Syukri
Arief, dan Zulhajdri
Kode Jurnal: jpkimiadd140482
