Unraveling Molecular Fingerprints of Catalytic Sulfur Poisoning at the Nanometer Scale with Near-Field Infrared Spectroscopy
Zafer Say, Melike Kaya, Çağıl Kaderoğlu, Yusuf Koçak, Kerem Emre Ercan, Abel Tetteh Sika-Nartey, Ahsan Jalal, Ahmet Arda Turk, Christoph Langhammer, Mirali Jahangirzadeh Varjovi, Engin Durgun, Emrah Özensoy
Abstract
(thin-film) planar model catalyst surface at the nanometer scale. The current results reveal striking variations in the nature of sulfate species from one nanoparticle to another, vast alterations of sulfur poisoning on a single Pd nanoparticle as well as at the assortment of sulfate species at the active metal-metal-oxide support interfacial sites. These findings provide critical molecular-level insights crucial for the development of long-lifetime precious metal catalysts resistant toward deactivation by sulfur.
Topics & Concepts
CatalysisSulfurChemistryAdsorptionOxideNanometreNanoparticleMetalSulfateNanotechnologyInfrared spectroscopyChemical engineeringInorganic chemistryMaterials scienceOrganic chemistryEngineeringCopper-based nanomaterials and applicationsQuantum Dots Synthesis And PropertiesGold and Silver Nanoparticles Synthesis and Applications