Thin Coating Technologies and Applications in High-Temperature Solid Oxide Fuel Cells

Abstract

A solid oxide fuel cell (SOFC) is an electrochemical device to convert the chemical energy of fuels, such as hydrogen and hydrocarbons, to electricity, with potential applications in transportation, distributed generation, remote power, defense, and many others [1-3]. They offer extremely high chemical-to-electrical conversion effi ciencies because the effi ciency is not limited by the Carnot CONTENTS Cathode Electrolyte Anode Fuel Anode reactions: H 2 + O 2-C n H 2n+2 + (3n+1)O 2-nCO 2 + (n+1)H 2 O + (6n+2)e-CO + O 2-H 2 O + 2e-CO 2 + 2e-O 2 (air) ½ O 2 + 2e-O 2-O = Cathode reaction: