Mechanically assisted solid state synthesis of Mg2SnO4

作者：Berbenni Vittorio^*; Milanese Chiara; Bruni Giovanna; Girella Alessandro; Marini Amedeo

来源：Journal of Thermal Analysis and Calorimetry, 2012, 110(2): 831-837.

DOI：10.1007/s10973-011-2046-z

• Mg2SnO4
• High-energy milling
• Solid state synthesis
• Mechano-thermal synthesis
• Molar heat capacity

Simultaneous TG-DSC measurements have been used to study the solid state reaction in the system SnC2O4-4MgCO(3)center dot Mg(OH)(2)center dot xH(2)O (Sn:Mg = 0.5). The results obtained with physically prepared mixture and with mixture mechanically activated by high-energy milling are compared. Synthesis of the compound Mg2SnO4 has been attempted starting from both type of mixture: Mg2SnO4 forms by annealing the activated mixture at temperatures between 850 and 1,000 degrees C while it can hardly be obtained from physical mixtures even by thermal treatment at temperature as high as 1,300-1,350 degrees C. Mg2SnO4 prepared by annealing the activated mixture has been characterized by diffuse reflectance FT-IR spectroscopy, modulated temperature differential scanning calorimetry, scanning electron microscopy, and specific surface area measurements (B.E.T. method).

• 出版日期2012-11