Abstract Surface thermodynamic properties related to nanoparticles size and morphology generate significant influences on their thermodynamic behaviors in different physicochemical processes. Herein, the electrode potentials of Ag nanoelectrodes formed with various particle sizes and morphologies of nano-Ag were determined at varying temperatures. Based on the method of electrochemistry, the surface thermodynamic properties of nano-Ag were gotten and a comparison was made with theoretical results. It is revealed that with decreasing nano-Ag size, these surface thermodynamic properties become larger and correlate linearly with inverse particle size. Furthermore, for nanoparticles with the same equivalent size, the change regularity of surface Gibbs energy, enthalpy and entropy with morphology follow the same sequence as: cube > sphere > wire. This study is valuable to provide insights to the influence mechanisms and regularities of nanoparticle size and morphology on these properties.

中文翻译：

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纳米银表面热力学性质的尺寸和形态依赖性研究

摘要 与纳米颗粒尺寸和形态相关的表面热力学性质对其在不同物理化学过程中的热力学行为产生显着影响。在此，在不同温度下测定了由不同粒径和纳米银形态形成的银纳米电极的电极电位。基于电化学方法，得到了纳米银的表面热力学性质，并与理论结果进行了比较。结果表明，随着纳米银尺寸的减小，这些表面热力学性质变得更大，并且与反向粒径呈线性相关。此外，对于等效尺寸相同的纳米粒子，表面吉布斯能、焓、熵随形态的变化规律遵循相同的顺序：立方体>球体>线。