Pd nanoparticle growth monitored by DRIFT spectroscopy of adsorbed CO
Andrei A. Tereshchenko, Alexander A. Guda, Vladimir A. Polyakov, Yury V. Rusalev, Vera V. Butova, А. В. Солдатов
Abstract
Synchrotron-based X-ray absorption spectroscopy and scattering are known in situ probes of metal nanoparticles (NPs). A limited number of laboratory techniques allow post-synthesis diagnostics of the active metal surface area. This work demonstrates the high potential of infrared spectroscopy as an in situ laboratory probe for the growth of metal NPs on a substrate. We introduce a small fraction of CO molecules into the reaction mixture as a probe to monitor the reduction kinetics of the Pd2+ precursor on ceria in hydrogen.
Topics & Concepts
NanoparticleAdsorptionChemistrySpectroscopyAnalytical Chemistry (journal)Materials scienceNanotechnologyEnvironmental chemistryPhysical chemistryPhysicsQuantum mechanicsCatalytic Processes in Materials Sciencenanoparticles nucleation surface interactionsAdvanced Chemical Physics Studies