Synthesis of Pd/Fe3O4 Hybrid Nanocatalysts with Controllable Interface and Enhanced Catalytic Activities for CO Oxidation
Citations Over TimeTop 10% of 2012 papers
Abstract
Palladium is an important catalyst for many industrial processes and chemical reactions. The conjunction of Pd and a metal oxide is of particular interest for improving catalytic performance in heterogeneous catalysis. Here we report the synthesis of Pd/Fe3O4 hybrid nanoparticles with controllable interface and the evaluation of their catalytic activities for CO oxidation. The synthesis involves a seed-mediated process in which Pd nanoparticles serve as seeds, followed by the deposition of the Fe3O4 layer in the solution phase. The adhesion of the oxide layer to the metal surface is through the reduced form of Fe. Upon thermal annealing, the Fe3O4 layer evolved from complete to partial coverage on the Pd core surface. This process is accompanied by increased crystallinity of Fe3O4. The resultant Pd–Fe3O4 nanoparticles with a partial Fe3O4 shell significantly lower the light-off temperature of CO oxidation.
Related Papers
- → Effect of the Ag+ in Ag25@ZnO nanocatalysts for the 4-nitrophenol reduction reactions(2023)7 cited
- → Recent Developments in Nanostructured Palladium and Other Metal Catalysts for Organic Transformation(2019)36 cited
- → Behavior of Metal‐Induced Oxide Charge during Thermal Oxidation in Silicon Wafers(1997)22 cited
- → Synthesis Characterization and Applications of Colloidal Supported Metal Nanoparticles(2013)2 cited
- Recent progress on core-shell nanocatalysts(2015)