Electrochemistry : Introduction, basic...

Post on 04-Jun-2020

1 views 0 download

Transcript of Electrochemistry : Introduction, basic...

1

ELECTROCHEMISTRY: INTRODUCTION,

BASIC THERMODYNAMICS

2

Introduction / Thermodynamics

Introduction

• Structure of simple electrochemical system

• Chemical and electrical driving forces

: Gibbs free energy / Electromotive force

Review of thermodynamic concepts

Examples

: thermodynamic interpretation of electrochemical systems

• Formation cells / Concentration cells

3

Introduction to Electrochemistry

A study of interconversion between chemical energy and electrical energy

: chemical reaction by electrical current or vice versa

(electrical energy ↔ chemical energy)

A study including movement of electrons, ions, and the interaction of them

: ionic reaction, electrical current, and their interaction, resulting in generation of flow of charge

Discovery of bioelectricity by Galvani (1791), invention of the battery (Volta battery), electrolysis of water (1800), Daniell battery (1836)…

Batteries, Electroplating, Opto-electrochemistry, Electronic engineering, Sensors, Biology…

1. Definition

2. History

3. Application