Preface
Surface stress is the mechanical work unique for a solid surface which is elastically
deformed due to low mobility of the component atoms. When the potential is
applied to a solid metal electrode in electrolyte solution, the surface stress of the
solid electrode changes depending on the applied potential due to the electrochemical reaction taking place on the electrode such as electro-sorption or
electro-deposition. Reversely, when a solid metal electrode is elastically strained,
the potential of the electrode varies depending on the degree of the surface strain. In
addition, when a surface oxide film (anodic oxide film) is formed and grown on a
solid metal electrode during anodic oxidation, stress is generated in the film and the
film stress varies depending on the conditions of anodic oxidation. The properties of
solid electrode surfaces associated with the correlation between electrochemical and
mechanical phenomena are named “electro-chemo-mechanical properties”.
This book deals with the electro-chemo-mechanical properties of solid electrode
surfaces that are useful for a deep insight into the interfacial phenomena such as
electro-catalytic reaction, surface film formation and corrosion. This text is aimed at
graduates and senior undergraduates studying interfacial electrochemistry and
materials science or those beginning research work in the fields and related areas.
In Chap. 1, surface thermodynamics of a solid electrode is derived as fundamentals for understanding of electro-chemo-mechanical properties. This chapter is
based on “Advanced Course of Interfacial Electrochemistry” that I taught for
graduate students at Faculty of Engineering, Hokkaido University. Surface stress is
equal to surface tension for a liquid metal (e.g., mercury) electrode which is
plastically deformed due to high mobility of the component atoms, while surface
stress is not equal to surface tension for a solid metal electrode. The thermodynamic
parameters theoretically derived are compared with those obtained experimentally
to understand the difference between surface stress and surface tension for a solid
metal electrode. Measurement of changes in surface stress of a solid electrode is
indispensable for investigating the electro-chemo-mechanical properties of the
electrode surfaces. The principles and features of typical methods for measuring
changes in surface stress such as piezoelectric detection and cantilever bending are
described in Chap. 2. In addition, new techniques of electrochemical response to
v
Surface stress is the mechanical work unique for a solid surface which is elastically
deformed due to low mobility of the component atoms. When the potential is
applied to a solid metal electrode in electrolyte solution, the surface stress of the
solid electrode changes depending on the applied potential due to the electrochemical reaction taking place on the electrode such as electro-sorption or
electro-deposition. Reversely, when a solid metal electrode is elastically strained,
the potential of the electrode varies depending on the degree of the surface strain. In
addition, when a surface oxide film (anodic oxide film) is formed and grown on a
solid metal electrode during anodic oxidation, stress is generated in the film and the
film stress varies depending on the conditions of anodic oxidation. The properties of
solid electrode surfaces associated with the correlation between electrochemical and
mechanical phenomena are named “electro-chemo-mechanical properties”.
This book deals with the electro-chemo-mechanical properties of solid electrode
surfaces that are useful for a deep insight into the interfacial phenomena such as
electro-catalytic reaction, surface film formation and corrosion. This text is aimed at
graduates and senior undergraduates studying interfacial electrochemistry and
materials science or those beginning research work in the fields and related areas.
In Chap. 1, surface thermodynamics of a solid electrode is derived as fundamentals for understanding of electro-chemo-mechanical properties. This chapter is
based on “Advanced Course of Interfacial Electrochemistry” that I taught for
graduate students at Faculty of Engineering, Hokkaido University. Surface stress is
equal to surface tension for a liquid metal (e.g., mercury) electrode which is
plastically deformed due to high mobility of the component atoms, while surface
stress is not equal to surface tension for a solid metal electrode. The thermodynamic
parameters theoretically derived are compared with those obtained experimentally
to understand the difference between surface stress and surface tension for a solid
metal electrode. Measurement of changes in surface stress of a solid electrode is
indispensable for investigating the electro-chemo-mechanical properties of the
electrode surfaces. The principles and features of typical methods for measuring
changes in surface stress such as piezoelectric detection and cantilever bending are
described in Chap. 2. In addition, new techniques of electrochemical response to
v