储能科学与技术 ›› 2013, Vol. 2 ›› Issue (1): 63-68.doi: 10.3969/j.issn.2095-4239.2013.01.006

• 专家讲座 • 上一篇    下一篇

电化学基础(II)----热力学平衡与能斯特方程及其应用

廖斯达, 贾志军, 马洪运, 吴旭冉, 王保国   

  1. 清华大学化学工程系,北京 100084
  • 收稿日期:2012-11-09 修回日期:2012-12-05 出版日期:2013-02-19 发布日期:2013-02-19
  • 通讯作者: 王保国,博士,教授,从事膜材料,储能科学与技术研究,E-mail:bgwang@tsinghua.edu.cn.
  • 作者简介:廖斯达(1988--),男,硕士研究生,主要研究方向为液流电池储能技术,E-mail:liaostar@163.com
  • 基金资助:
    化学工程联合国家重点实验室2011年自主课题立项和国家自然科学基金项目(21076112,21276134)

Fundamentals of electrochemistry (Ⅱ)--Thermodynamic equilibrium and Nernst equation

LIAO Sida, JIA Zhijun, MA Hongyun, WU Xuran, WANG Baoguo   

  1. Department of Chemical Engineering,Tsinghua University,Beijing 100084,China
  • Received:2012-11-09 Revised:2012-12-05 Online:2013-02-19 Published:2013-02-19

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摘要： 能斯特方程描述电极,原电池的可逆电势与标准电极电势及反应物活度的定量关系,是热力学平衡在电化学反应过程中的具体表现,是构成现代电化学工程的科学基础之一.能斯特方程对现代电化学工业技术领域的推动作用,主要体现在化学电源,金属防腐和电化学分析方法等领域.通过回顾能斯特方程提出和发展的科学背景,了解其解决问题的思路,对于推动现代电化学工程研究具有重要意义.

关键词: 能斯特方程, 电化学, 热力学平衡

Abstract: Nernst Equation provides a quantitative relationship between the reversible potential of the electrode/cell, the standard electrode potential and the reactant activity. It is one of the most fundamental theories for the modern electrochemical engineering. Nernst Equation is an alternative formulation of thermodynamic equilibrium applicable to electrochemical reaction processes, and as a result, has been widely used in many industrial fields, including chemical power, anti-corrosion of metals, electrochemical analysis methods and so on. This paper reviews the background of Nernst's experiments, and Nernst's approaches to problems, which, in our view should benefit future research and development of electrochemical engineering.

Key words: Nernst equation, electrochemistry, thermodynamic equilibrium

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