Understanding of the thermodynamic stability of transition metal oxide nanoparticles, helps to control the physical reactions of such material in a variety of industrial and environmental applications.
By a high-precision calorimeter, one can measure the surface energy of cobalt, iron, manganese, and nickel oxide and results the calorimetric data, and further proof that the nanoscale transition metal oxide, in which the surface energy, can strongly affect the redox equilibria, as well as the phase stability.
Spinel (M3O4), compares to the metal (M), rocksalt oxides (MO), and the same trivalent metal oxide (M2O3), having a lower surface energy. Therefore, a divalent metal oxide or a spinel has a more stable contraction and expansion field, is general phenomena.
Since 2010, Mr. Alexandra Navrotsky, who issued an report in the journal "Science", the related research topics in this area is still popular. Setaram C80 calorimeter generated a lot of meritorious in this field. The instrument is designed based on the principle of CALVET calorimeter with a three-dimensional sensors, comprehensive survey of sample thermal effects. C80 comprehensive breakthrough the limitation of general two-dimensional DSC calorimeter, which has lower efficiency, small sample size, uniform, these disadvantages. C80 can show the real physical and chemical nature of the sample, and provide unparalleled precision.
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