Electron Microscopy Investigation of CeO₂ Nanofibers Supported Noble Metal (Pt, Pd and Ru) Catalysts for CO Oxidation

With the ever-growing requirements for clean energy production and processing, developing highly efficient catalysts to eliminate environmental pollutants is of vital importance. As one of the remarkable supports or promoters in heterogeneous catalysis, ceria (CeO2) and related support materials with high oxygen storage-release capacity have been widely investigated [1]. And in recent decades, lots of approaches regarding morphology-controlled synthesis of CeO2 were employed to tune the catalytic activity of CeO2 supported catalysts Herein, we report to synthesize CeO2 nanofibers (CeO2NF) via electrospinning technique and prepare a series of CeO2NF supported noble metal (Pt, Pd and Ru) catalysts. This paper is mainly focused on electron microscopy study of the as-prepared electronspun CeO2NF support and CeO2NF supported noble metal catalysts, aiming at exploring the relationship between catalyst-support interfacial structure and the enhanced low temperature CO oxidation activity.