Preface

There are many facets of redox reactions in chemistry, biology, and physics. It would be impossible for a single scientist to know all the varieties of redox reactions. However, in the field of electrochemistry, there are two main families: molecular electrochemistry and the electrochemistry of electrical energy conversion and storage. It is possible to use molecules in the conversion and storage of electrical energy because the molecular mechanism involved is the same. In many instances, however, the injection or removal of one electron into or from a molecule triggers drastic changes in the nuclear framework, such as bond cleavage and bond formation.

The precise control of molecules and electrochemistry allows for storing and conserving energy. In fact, the possibility of quantitative control of molecular design is a potential strategy to increase supercapacitors' energy density and power. Mastering the competition between mass transport and the redox reaction of new molecules creates opportunities in the field of redox flow batteries. This book examines the importance of redox molecules in the development of new electrical energy storage devices.

> **Olivier Fontaine** Molecular Electrochemistry for Energy Laboratory, VISTEC, Member of Institut Universitaire de France, Rayong, Thailand

Section 1

Introduction to Molecular

Chemistry for Energy

**1**

Section 1
