The Determination of Surface Thermodynamic Properties of Nanoparticles by Thermal Analysis

• 作者: George O. Piloyan Natalia M. Boeva Nikolay S. Bortnikov
• 来源期刊: 现代物理(英文)
• 学科: 化学
• 关键词: SURFACE ENTHALPY SURFACE ENTROPY SURFACE Energy DTA DSC NANOPARTICLE
• 年，卷（期）: 2013,（7）
• 页码范围: 16-21
• 页数: 6页
• 分类号: O6

摘要

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.