Intrinsic Ligand Effect Governing the Catalytic Activity of Pd Oxide Thin Films

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Abstract

High-pressure X-ray photoelectron spectroscopy, mass spectrometry, and density functional theory calculations have been combined to study methane oxidation over Pd(100). The measurements reveal a high activity when a two-layer PdO(101) oriented film is formed. Although a one-layer PdO(101) film exhibits a similar surface structure, no or very little activity is observed. The calculations show that the presence of an oxygen atom directly below the coordinatively unsaturated Pd atom in the two-layer PdO(101) film is crucial for efficient methane dissociation, demonstrating a ligand effect that may be broadly important in determining the catalytic properties of oxide thin films.

Detaljer

Författare
Enheter & grupper
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Atom- och molekylfysik och optik

Nyckelord

Originalspråkengelska
Sidor (från-till)3330-3334
TidskriftACS Catalysis
Volym4
Utgivningsnummer10
StatusPublished - 2014
PublikationskategoriForskning
Peer review utfördJa