Description Cerium oxide, praseodymium doped (PDC-20) nanopowder is a fluorite-type oxide, which can be used as a non-toxic red and orange ceramic pigment. It can be prepared by a variety of techniques such as microwave-assisted hydrothermal (MAH) method, flux method and carbonate-coprecipitation method.PDC-20 can be used for a variety of applications such as:a substrate for water-gas shift reactionan electrolyte material for solid oxide fuel cells(SOFCs)