High-energy surface X-ray diffraction for fast surface structure determination
Journal article, 2014

Understanding the interaction between surfaces and their surroundings is crucial in many materials-science fields such as catalysis, corrosion, and thin-film electronics, but existing characterization methods have not been capable of fully determining the structure of surfaces during dynamic processes, such as catalytic reactions, in a reasonable time frame. We demonstrate an x-ray-diffraction–based characterization method that uses high-energy photons (85 kiloelectron volts) to provide unexpected gains in data acquisition speed by several orders of magnitude and enables structural determinations of surfaces on time scales suitable for in situ studies. We illustrate the potential of high-energy surface x-ray diffraction by determining the structure of a Pd surface in situ during catalytic CO oxidation and follow dynamic restructuring of the surface with subsecond time resolution.

Author

Johan Gustafson

Lund University

Mikhail Shipilin

Lund University

Chu Zhang

Lund University

Andreas Stierle

Universität Hamburg

Deutsches Elektronen-Synchrotron (DESY)

Uta Hejral

Deutsches Elektronen-Synchrotron (DESY)

Universität Hamburg

Uta Ruett

Deutsches Elektronen-Synchrotron (DESY)

Olof Gutowski

Deutsches Elektronen-Synchrotron (DESY)

Per-Anders Carlsson

Chalmers, Chemical and Biological Engineering, Applied Surface Chemistry

Competence Centre for Catalysis (KCK)

Magnus Skoglundh

Chalmers, Chemical and Biological Engineering, Applied Surface Chemistry

Competence Centre for Catalysis (KCK)

Edvin Lundgren

Lund University

Science

0036-8075 (ISSN)

Vol. 343 6172 758-761

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

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

Driving Forces

Sustainable development

Areas of Advance

Nanoscience and Nanotechnology (2010-2017)

Transport

Energy

Materials Science

Subject Categories

Physical Chemistry

Chemical Process Engineering

Atom and Molecular Physics and Optics

Condensed Matter Physics

Roots

Basic sciences

DOI

10.1126/science.1246834

More information

Latest update

10/27/2018