As a typically renewable environmental fuel, ethanol has numerous advantages, including easy to storage and production, and high energy density. Therefore, it attracts an extensive attention. In this review we detailedly introduced the significant progress on ethanol electrocatalytic oxidation in recent years. The thermodynamics process, reaction mechanism of ethanol electrooxidation, and the advantages and disadvantages of different electrocatalysts are emphatically described. Furthermore, the factors affecting the reaction activity and selectivity of ethanol electrooxidation, such as support, size, structure, alloy and additive, are discussed. Also, the strategy to enhance activity and selectivity of ethanol electrooxidation is summarized. In the end, we prospect the future of possible research direction of ethanol electrooxidation.

Contents
1 Introduction
2 Thermodynamics process and reaction mechanism of ethanol electrooxidation
2.1 Thermodynamics process
2.2 Reaction mechanism
3 Different kinds of electrocatalysts
3.1 Binary electrocatalysts
3.2 Ternary electrocatalysts
4 Factors affecting ethanol electrooxidation
4.1 Support effect
4.2 Size effect
4.3 Structure effect
4.4 Alloy effect
4.5 Additive effect
5 The strategy to enhance activity and selectivity of ethanol electrooxidation
6 Conclusions and outlook