Cerium oxide is a chemical compound made up of cerium and oxygen, commonly represented by the formula CeO2. It is a white powder that is used in various applications, including as a catalyst in automotive catalytic converters and as a polishing agent for glass and ceramics. Its unique properties make it effective in promoting chemical reactions and improving surface finishes. In addition to its industrial uses, cerium oxide is also studied for its potential in nanotechnology and energy storage. Researchers are exploring its role in improving the efficiency of solar cells and batteries. Its ability to store and release oxygen makes it a valuable material in these advanced technologies.