ArticlePhilosophical transactions. Series A, Mathematical, physical, and engineering sciences2018
X-ray physico-chemical imaging during activation of cobalt-based Fischer-Tropsch synthesis catalysts.
Article in Philosophical transactions. Series A, Mathematical, physical, and engineering sciences, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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7 citing papers in PubMed.
- Synchrotron beamline setup enabling quasi-simultaneous PXRD and XANES measurements: case study of Fischer-Tropsch catalyst reduction at 60 bar.Journal of synchrotron radiation · 2026Article
- Demonstrating Faster Multi-Label Grey-Level Analysis for Crack Detection in Ex Situ and Operando Micro-CT Images of NMC Electrode.Small methods · 2025Article
- On the Cobalt Carbide Formation in a Co/TiOACS catalysis · 2021Article
- Preparation of isolated CoNanoscale advances · 2019Article
- Design of next-generation ceramic fuel cells and real-time characterization with synchrotron X-ray diffraction computed tomography.Nature communications · 2019Article
- 5D operando tomographic diffraction imaging of a catalyst bed.Nature communications · 2018Article
- Providing sustainable catalytic solutions for a rapidly changing world.Philosophical transactions. Series A, Mathematical, physical, and engineering sciences · 2018Article
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8 authors.
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Abstract
The imaging of catalysts and other functional materials under reaction conditions has advanced significantly in recent years. The combination of the computed tomography (CT) approach with methods such as X-ray diffraction (XRD), X-ray fluorescence (XRF) and X-ray absorption near-edge spectroscopy (XANES) now enables local chemical and physical state information to be extracted from within the interiors of intact materials which are, by accident or design, inhomogeneous. In this work, we follow the phase evolution during the initial reduction step(s) to form Co metal, for Co-containing particles employed as Fischer-Tropsch synthesis (FTS) catalysts; firstly, working at small length scales (approx. micrometre spatial resolution), a combination of sample size and density allows for transmission of comparatively low energy signals enabling the recording of 'multimodal' tomography, i.e. simultaneous XRF-CT, XANES-CT and XRD-CT. Subsequently, we show high-energy XRD-CT can be employed to reveal extent of reduction and uniformity of crystallite size on millimetre-sized TiO
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