Intrinsic Ligand Effect Governing the Catalytic Activity of Pd Oxide Thin Films
Artikel i vetenskaplig tidskrift, 2014

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.

methane oxidation

palladium

(root 5 x root 5)

PdO

heterogeneous catalysis

Författare

N. M. Martin

Lunds universitet

Maxime van den Bossche

Kompetenscentrum katalys (KCK)

Chalmers, Teknisk fysik, Kemisk fysik

Anders Hellman

Kompetenscentrum katalys (KCK)

Chalmers, Teknisk fysik, Kemisk fysik

Henrik Grönbeck

Chalmers, Teknisk fysik, Kemisk fysik

Kompetenscentrum katalys (KCK)

C. Hakanoglu

University of Florida

J. Gustafson

Lunds universitet

S. Blomberg

Lunds universitet

N. Johansson

Lunds universitet

Z. Liu

Lawrence Berkeley National Laboratory

S. Axnanda

Lawrence Berkeley National Laboratory

Jason F. Weaver

University of Florida

E. Lundgren

Lunds universitet

ACS Catalysis

2155-5435 (eISSN)

Vol. 4 10 3330-3334

Drivkrafter

Hållbar utveckling

Styrkeområden

Nanovetenskap och nanoteknik

Transport

Energi

Materialvetenskap

Ämneskategorier

Fysikalisk kemi

Kemiska processer

Fundament

Grundläggande vetenskaper

Infrastruktur

C3SE (Chalmers Centre for Computational Science and Engineering)

DOI

10.1021/cs5010163

Mer information

Senast uppdaterat

2018-03-02