Gas-Permeable Iron-Doped Ceria Shell on Rh Nanoparticles with High Activity and Durability
Gunjoo Kim, Sangyong Shin, Yunji Choi, Jinwoong Kim, Geonhwa Kim, Ki-Jeong Kim, Hyunjoo Lee
Abstract
-spillover occurred more on the FC, resulting in high activity for RWGS. The exposed Rh nanoparticles deposited on ceria presented degradation at 400 °C after 150 h of RWGS, whereas the encapsulated Rh nanoparticles showed no degradation with superior durability. Enhancing surface oxygen transfer can be an efficient way to form gas-permeable overlayers on metal nanoparticles with high activity and durability.
Topics & Concepts
NanoparticleCatalysisMaterials scienceChemical engineeringAdsorptionRhodiumMetalWater-gas shift reactionNanomaterial-based catalystX-ray photoelectron spectroscopyInorganic chemistryNanotechnologyChemistryMetallurgyPhysical chemistryOrganic chemistryEngineeringCatalytic Processes in Materials ScienceNanomaterials for catalytic reactionsCatalysis and Oxidation Reactions