Oxygen step-response experiments for methane oxidation over Pd/Al2O3: An in situ XAFS study
Journal article, 2018

Methane oxidation over Pd/Al2O3 has been investigated by in situ XAFS characterization during oxygen step-response experiments. With a net-reducing feed gas, Pd is in a reduced state and the introduction of oxygen leads to oxidation of palladium as well as increased methane conversion. When the rate of Pd oxidation is slow, a transient surface oxidized state is observed with low activity for methane oxidation. The activity increases when palladium is further oxidized and the highest activity is observed for palladium oxide.

XAFS

Methane oxidation

Step-response

in situ spectroscopy

Palladium

Author

Johan Nilsson

Competence Centre for Catalysis (KCK)

Chalmers, Chemistry and Chemical Engineering

Per-Anders Carlsson

Chalmers, Chemistry and Chemical Engineering

Competence Centre for Catalysis (KCK)

Natalia Mihaela Martin

Competence Centre for Catalysis (KCK)

Chalmers, Chemistry and Chemical Engineering

Peter Velin

Chalmers, Chemistry and Chemical Engineering

Debora Motta Meira

European Synchrotron Radiation Facility (ESRF)

Henrik Grönbeck

University of Gothenburg, Department of Physics

Competence Centre for Catalysis (KCK)

Magnus Skoglundh

Competence Centre for Catalysis (KCK)

Chalmers, Chemistry and Chemical Engineering

Catalysis Communications

1566-7367 (ISSN)

Vol. 109 24-27

Time-resolved in situ methods for design of catalytic sites within sustainable chemistry

Swedish Research Council (VR), 2013-01-01 -- 2016-12-31.

Unravelling catalytically active sites with X-ray absorption spectroscopy

Swedish Research Council (VR), 2012-01-01 -- 2015-12-31.

Fundamental studies on the influence of water on oxidation catalysts for biogas applications

Swedish Energy Agency, 2015-04-01 -- 2019-03-31.

Driving Forces

Sustainable development

Areas of Advance

Nanoscience and Nanotechnology

Transport

Energy

Materials Science

Subject Categories

Physical Chemistry

Chemical Process Engineering

Materials Chemistry

Roots

Basic sciences

DOI

10.1016/j.catcom.2018.02.011

More information

Latest update

1/7/2019 2