elastic deformation and dilatometry for stress measurement of a nano-porous
electrode are also included in Chap. 2.
In Chap. 3, potential-induced or adsorbate-induced changes in surface stress
associated with surface reconstruction or adsorption of electrolyte species are
explained as concrete examples for electro-chemo-mechanical properties of solid
electrode surfaces. Two characteristic parameters of the surface stress-surface charge
density coefficient and of the potential-surface elastic strain coefficient are experimentally compared to confirm that both parameters are theoretically equivalent each
other. Underpotential deposition (UPD) of metal atoms on a foreign metal electrode
in electrolyte solutions containing the corresponding metal ions has been extensively
investigated in the field of electro-catalysis from the viewpoint of the enhancement
of catalytic activity due to UPD. In Chap. 4, the electro-chemo-mechanical properties of the typical UPD layers on Au (111) electrode are discussed from the
changes in surface stress measured by a cantilever bending and from the structural
changes of the UPD layers observed by various in-situ analytical tools. There have
been controversial arguments in the electrochemistry community for surface thermodynamics associated with surface stress and surface tension of a solid electrode.
The controversial discussions still continue up to now. In Chap. 5, the controversial
arguments made so far for surface thermodynamics of a solid electrode are reviewed
to find a clue for solving the thermodynamic issues.
Stresses generated in anodic oxide films on a solid metal electrode are influenced
by many factors associated with the film formation and growth mechanism. In
Chap. 6, the main factors influencing the film stress are separately explained and the
contributions of respective factors are discussed for the typical experimental results.
Nano-indentation technique is a powerful tool to measure the mechanical properties
such as hardness, elastic modulus, and yielding strength in a nanometer’s range (i.e.,
nano-mechanical properties) of solid surfaces. In Chap. 7, the fundamentals of
nano-indentation technique are explained and the nano-mechanical properties of
bare metal surfaces, bulk metal oxides and anodic oxide films on metals are
described as typical examples of the application results. Furthermore, the results
obtained by electrochemical nano-indentation on passive metal electrodes in electrolyte solution are discussed in Chap. 7.
I would like to acknowledge the colleagues of Corrosion Research Group at
Hokkaido University who gave me a strong motivation for the preparation of this
book. I wish to thank postdoctoral and graduate students studied in my laboratory
for their contribution to this book. Finally, I am grateful to my wife, Hiroko, for her
constant support.
Sapporo, Japan
June 2020
Masahiro Seo
vi
Preface
electrode are also included in Chap. 2.
In Chap. 3, potential-induced or adsorbate-induced changes in surface stress
associated with surface reconstruction or adsorption of electrolyte species are
explained as concrete examples for electro-chemo-mechanical properties of solid
electrode surfaces. Two characteristic parameters of the surface stress-surface charge
density coefficient and of the potential-surface elastic strain coefficient are experimentally compared to confirm that both parameters are theoretically equivalent each
other. Underpotential deposition (UPD) of metal atoms on a foreign metal electrode
in electrolyte solutions containing the corresponding metal ions has been extensively
investigated in the field of electro-catalysis from the viewpoint of the enhancement
of catalytic activity due to UPD. In Chap. 4, the electro-chemo-mechanical properties of the typical UPD layers on Au (111) electrode are discussed from the
changes in surface stress measured by a cantilever bending and from the structural
changes of the UPD layers observed by various in-situ analytical tools. There have
been controversial arguments in the electrochemistry community for surface thermodynamics associated with surface stress and surface tension of a solid electrode.
The controversial discussions still continue up to now. In Chap. 5, the controversial
arguments made so far for surface thermodynamics of a solid electrode are reviewed
to find a clue for solving the thermodynamic issues.
Stresses generated in anodic oxide films on a solid metal electrode are influenced
by many factors associated with the film formation and growth mechanism. In
Chap. 6, the main factors influencing the film stress are separately explained and the
contributions of respective factors are discussed for the typical experimental results.
Nano-indentation technique is a powerful tool to measure the mechanical properties
such as hardness, elastic modulus, and yielding strength in a nanometer’s range (i.e.,
nano-mechanical properties) of solid surfaces. In Chap. 7, the fundamentals of
nano-indentation technique are explained and the nano-mechanical properties of
bare metal surfaces, bulk metal oxides and anodic oxide films on metals are
described as typical examples of the application results. Furthermore, the results
obtained by electrochemical nano-indentation on passive metal electrodes in electrolyte solution are discussed in Chap. 7.
I would like to acknowledge the colleagues of Corrosion Research Group at
Hokkaido University who gave me a strong motivation for the preparation of this
book. I wish to thank postdoctoral and graduate students studied in my laboratory
for their contribution to this book. Finally, I am grateful to my wife, Hiroko, for her
constant support.
Sapporo, Japan
June 2020
Masahiro Seo
vi
Preface