Thermodynamic properties and equilibrium constant of chemical reaction in nanosystem: An theoretical and experimental study

被引：12

作者：

Du, Jianping ^{[1
]}

Zhao, Ruihua ^{[1
]}

Xue, Yongqiang ^{[1
]}

机构：

[1] Taiyuan Univ Technol, Coll Chem & Chem Engn, Taiyuan 030024, Peoples R China

来源：

JOURNAL OF CHEMICAL THERMODYNAMICS | 2012年 / 55卷

关键词：

Reactant size; Nano-system; Thermodynamic properties; Equilibrium constant; SURFACE; SIZE; OXIDE;

D O I：

10.1016/j.jct.2012.06.004

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The theoretical relations of thermodynamic properties, the equilibrium constant and reactant size in nanosystem are described. The effects of size on thermodynamic properties and the equilibrium constant were studied using nanosize zinc oxide and sodium bisulfate solution as a reaction system. The experimental results indicated that the molar Gibbs free energy, the molar enthalpy and the molar entropy of the reaction decrease, but the equilibrium constant increases with decreasing reactant size. Linear trends were observed between the reciprocal of size for nano-reactant and thermodynamic variable, which are consistent with the theoretical relations. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：218 / 224

页数：7

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