Soft Chemistry Synthesis, Crystal Structure
and 3D-AFM-Micro-Structural Surface Features
of Calcium-Barium Selenate Molecule with AB₂X₅ Structure¹

Khaled M. Elsabawy^a,c and Moamen S. Refat^b

^a Materials Science Unit, Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt

^b Chemistry Department, Faculty of Science, Port Said University, Port Said, Egypt

^c Department of Chemistry, Faculty of Science, Taif University, Taif, Saudi Arabia

e-mail: ksabawy@yahoo.com

Received December 28, 2010

Abstract—Acetate-citrate precursors were applied to synthesize amorphous gelatinous calcium barium sel-
enate with molecular formula (Ca_0.5Ba_0.5Se₂O₅). The gel-product was sintering at 800C for 2 hrs then well
characterized by X-ray diffraction, SEM and EDX elemental analyses and proved that the product
Ca_0.5Ba_0.5Se₂O₅ is mainly belong to AB2X5-type structure with average grain size ranged in between 1.2–3.8 m.
A visualized study was constructed depending upon SEM and 3D-AFM experimental data to confirm the the
microstructure morphological features of calcium-barium selenate surface.

DOI: 10.1134/S0036023612090045

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