Optimization of sol-gel preparation method for Y_0.9Ce_0.1Mn_3+δ to improve the oxygen storage properties

Abstract In recent years, various countries have started to develop and improve hydrogen technologies to establish a sustainable society. Among them, methods to store hydrogen in solids and later use it as an energy carrier are proposed and the principle of gas storage in solids and its potential for gas separation is of interest. This research primarily focuses on analogues concept of oxygen storage and production using solid oxides. It can be realized using the temperature swing adsorption (TSA) method. TSA relies on the specific properties of the absorbent materials that can reversibly change their oxygen content depending on external conditions like temperature. The absorbent materials are called oxygen storage materials (OSM). The overall cost and efficiency of oxygen production using TSA installations depend on the properties of the OSM materials. Therefore, it is essential to develop and improve the OSMs. The subject of this work is to investigate the different synthesis methods of the already chemically optimized Y 0.9 Ce 0.1 MnO 3+δ material. Samples were prepared using the sol-gel process that allows for the final sintering to be conducted at the relatively low temperature of 1000 °C or below.