Journal
MICROSCOPY AND MICROANALYSIS
Volume 22, Issue 1, Pages 71-81Publisher
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S1431927615015494
Keywords
quantitative EDX; partial cross section; catalysts
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Funding
- Engineering and Physical Sciences Research Council (EPSRC), UK
- Johnson-Matthey
- EPSRC through the UK National Facility for Aberration-Corrected STEM (SuperSTEM)
- HM Government (UK)
- EPSRC [EP/G035954/1, EP/J021172/1]
- North West Nanoscience Doctoral Training Centre (NOWNano DTC) at the University of Manchester
- Engineering and Physical Sciences Research Council [EP/K040375/1, EP/G035954/1, EP/J013501/1, 1085135, EP/J021172/1, EP/K005014/1] Funding Source: researchfish
- EPSRC [EP/K005014/1, EP/K040375/1, EP/J013501/1, EP/J021172/1, EP/G035954/1] Funding Source: UKRI
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The new generation of energy-dispersive X-ray (EDX) detectors with higher count rates than ever before, paves the way for a new approach to quantitative elemental analysis in the scanning transmission electron microscope. Here we demonstrate a method of calculating partial cross sections for use in quantifying EDX data, beneficial especially because of the simplicity of its implementation. Applying this approach to acid-leached PtCo catalyst nanoparticles leads to quantitative determination of the Pt surface enrichment.
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