Influence of dispersity on the thermodynamics of chemical reactions of nanominerals

Piloyan, G. O.; Бортников, Н. С.

doi:10.1134/s1028334x07070215

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2013

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“…The transition to nanoparticles is characterized by size effects. It is established that the thermal effect of the re-action Qr for nanoparticles depends on the surface energy σ [3].…”

Section: Introductionmentioning

confidence: 99%

The Determination of Surface Thermodynamic Properties of Nanoparticles by Thermal Analysis

Piloyan¹,

Бортников²,

Боева³

2013

JMP

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The effect of dispersivity on thermodynamic and kinetic parameters of chemical reactions in nanodispersed systems is theoretically investigated. On the basis of the established theoretical dependences the new method of determination of surface thermodynamic properties of nanoparticles (surface enthalpy, surface entropy and surface energy) by thermal analysis (DTA or DSC) was developed. Three examples of calculation of surface properties of nanoparticles were presented to prove the feasibility of this method.

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“…The transition to nanoparticles is characterized by size effects. It is established that the thermal effect of the re-action Qr for nanoparticles depends on the surface energy σ [3].…”

Section: Introductionmentioning

confidence: 99%