Issue 22, 2011
From the journal:

Physical Chemistry Chemical Physics

Universal relation for size dependent thermodynamic properties of metallic nanoparticles

Shiyun Xiong,a   Weihong Qi,*ab   Yajuan Cheng,a   Baiyun Huang,c   Mingpu Wangab  and  Yejun Lia  

* Corresponding authors

a School of Materials Science and Engineering, Central South University, Changsha, P.R. China
E-mail: qiwh216@mail.csu.edu.cn
Tel: +86-152-7491-1370

b Key Laboratory of Non-ferrous Materials Science and Engineering, Ministry of Education, C, P.R. China

c State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, P.R. China

Abstract

The previous model on surface free energy has been extended to calculate size dependent thermodynamic properties (i.e., melting temperature, melting enthalpy, melting entropy, evaporation temperature, Curie temperature, Debye temperature and specific heat capacity) of nanoparticles. According to the quantitative calculation of size effects on the calculated thermodynamic properties, it is found that most thermodynamic properties of nanoparticles vary linearly with 1/D as a first approximation. In other words, the size dependent thermodynamic properties Pn have the form of Pn = Pb(1 − K/D), in which Pb is the corresponding bulk value and K is the material constant. This may be regarded as a scaling law for most of the size dependent thermodynamic properties for different materials. The present predictions are consistent literature values.

Graphical abstract: Universal relation for size dependent thermodynamic properties of metallic nanoparticles

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Article information

DOI
https://doi.org/10.1039/C0CP90161J
Article type
Paper
Submitted
10 Oct 2010
Accepted
25 Feb 2011
First published
26 Apr 2011

Phys. Chem. Chem. Phys., 2011,13, 10652-10660

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Universal relation for size dependent thermodynamic properties of metallic nanoparticles

S. Xiong, W. Qi, Y. Cheng, B. Huang, M. Wang and Y. Li, Phys. Chem. Chem. Phys., 2011, 13, 10652 DOI: 10.1039/C0CP90161J

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