Research Advances of the Application of Amorphous Metal Oxides in the Oxygen Evoluation Process

Abstract

Amorphous metal oxides (AMOs) are highly efficient oxygen evolution catalysts，which have caused a research boom in several fields in recent years owing to the unique structural advantages，easy preparation and controlled composition.In this paper，the preparation method，mechanism of oxygen evolution and distribution of amorphous structure of amorphous materials were introduced，and the research progresses of AMOs in different applications were summarized.AMOs play an important role in the hydrometallurgical electrode materials.Crystalline-amorphous (C-A) containing Fe，Ni，Co，Mo，Mn and Ti and amorphous oxides have been successfully applied in high-efficiency oxygen evolution catalyst electrodes with an oxygen evolution overpotential of 200～400 mV and a high stability and corrosion resistance.AMOs have high storage capacity and cycle life when used as energy storage materials，and act as active catalysts in new energy industries such as hydrolysis of renewable technologies and lithium batteries.Finally，the challenges and shortcomings of current AMOs applications are concluded and some research directions for improvement and deepening are putted forward for providing a reference for the preparation of new stable and environmentally friendly amorphous oxide catalytic materials.

Keywords

• amorphous|catalyst|oxygen evolution reaction|application