Microscopic x-ray imaging techniques applied to mineral systems and catalyst particles

Authors: Fred Mosselmans (Diamond Light Source) , Carolyn Pearce (University of Manchester) , William Bower (University of Manchester) , Richard Pattrick (University of Manchester) , Stephen Price (Diamond Light Source) , Andrew Beale (University College London) , Adam Sims (University of Manchester) , Laura Barrio (Velocys)
Co-authored by industrial partner: Yes

Type: Book Chapter

State: Published (Approved)
Published: June 2016
Diamond Proposal Number(s): 9044 , 11703 , 12064

Open Access Open Access

Abstract: The development of complementary imaging techniques at beamline I18 at Diamond Light Source (Didcot, UK) to investigate the microstructure of inorganic materials is described. In particular, the use of X-ray micro-imaging techniques to understand the effect of alpha radiation on phyllosilicates, and the nature of individual catalytic par- ticles are reported. Micro X-ray diffraction ( m XRD) studies of the former materials have shown structural changes that will affect their adsorption properties, while the chemistry of the catalyst particles has been investigated using micro X-ray fluorescence, m XRD and m X-ray absorption near-edge structure mapping. The distribution of a Mo- promoted Pt nitrobenzene hydrogenation catalyst has shown that some of the Pt pene- trated to the core of the particle and has the same chemistry as the bulk of the Pt located on the outside of the particle. The phase distribution in an as-prepared Re-Ti-promoted Co Fischer-Tropsch catalyst is reported.

Subject Areas: Technique Development, Materials, Chemistry

Instruments: I18-Microfocus Spectroscopy

Added On: 28/06/2016 11:27

Discipline Tags:

Technique Development - Materials Science Physical Chemistry Catalysis Chemistry Materials Science

Technical Tags:

Diffraction Imaging Spectroscopy X-ray Fluorescence (XRF) X-ray Absorption Spectroscopy (XAS) Microfocus XAS microXRD