Mohammad Aslam, Praveen Kumar, Vivek Mani Tripathi, Mathivanan Durai, Rohit Kumar Singh Gautam, Elangovan Erusappan, Surinder Kaur Brar, Mohd Quasim Khan
Recent years have witnessed growth in the design and fabrication of cerium oxide (CeO2) based materials for sensing applications. This review summarizes the recent progress in the fabrication of CeO2 based sensors for the monitoring of environmental pollutants and biomedical diagnostics. The synthesis methods for the construction of CeO2 based materials have been compiled. Furthermore, electrochemical sensors based on CeO2 and its hybrids with carbon, polymers, MOFs, etc. are discussed for the quantification of various analytes. The importance of CeO2 based materials as electrode modifiers for electrochemical sensing application has been discussed. Subsequently, progress in CeO2 based materials for gas sensing technology has been summarized. The analytical performance of electrochemical as well as gas sensors has been discussed. The limitations, future trends, and perspectives of CeO2 based composite materials for electrochemical and gas sensors have been discussed.