Title: Artificial Synthesis of Platelet-Like Kassite and Its Transformation to CaTiO(3)
Authors: Huang, Yi-Jen
Tsai, Min-Chiao
Chiu, Hsin-Tien
Sheu, Hwo-Shuenn
Lee, Chi-Young
Department of Applied Chemistry
Issue Date: 1-Mar-2010
Abstract: Platelet-like kassite, a rare mineral CaTi(2)O(4)(OH)(2), wits synthesized by a wet chemical route using Ca(OH)(2) and TiO(2) as reagents in base Solution. The microstructure of the obtained kassite examined by synchrotron radiation and Rietveld refinement are hexagonal (P312) with a = b = 0.52451(2) and c = 0.47844(3) nm. This cell is slightly different from JCPDS No. 88-1722. At heating above 500 degrees C, the layered crystalline kassite rearranges to form disk-like CaTiO(3) and amorphous TiO(2) by removing H(2)O completely. Furthermore, transmission electron microscopy analysis reveals that the vertical axis of disk-like CaTiO(3) along the [0 (2) over bar1] direction converts from that of [001] orkassite.
URI: http://dx.doi.org/10.1021/cg901204x
ISSN: 1528-7483
DOI: 10.1021/cg901204x
Volume: 10
Issue: 3
Begin Page: 1221
End Page: 1225
Appears in Collections:Articles