CXIDB ID 227
Deposition Summary
Depositor: Clément Atlan
Contact: [email protected]
Deposition date: 2024-07-25
Last modified: 2024-07-25
DOI: 10.11577/2406523
Publication Details
Title: BCDI imaging of Pt crystals during electrochemical reaction
Authors: Clément Atlan et al.
Journal: Nature Materials
Year: 2023
DOI: 10.1038/s41563-023-01528-x
Experimental Conditions
Method: Bragg Coherent X-ray Diffraction Imaging
Sample: Pt nanoparticles deposited on Glassy Carbon rod
Wavelength: 0.95 Å (12.996 keV)
Lightsource: ESRF
Beamline: ID01
Data Files
Data Files: detector/
Auxiliary Files
Data Analysis: bcdi_pipeline.ipynb (2.46 MB)
Data Analysis: step_by_step_bcdi_analysis.ipynb (1.06 MB)
Scan Metadata: ALIGN_2020_11_24_084524.spec (3 MB)

Description

The BCDI measurements were performed with a photon energy of 13 keV (λ = 0.95 Å) at the ID01 beamline of the European Synchrotron Radiation facility. Beam size was focused down to 690 nm (horizontally) × 630 nm (vertically) using Be compound refractive lenses. The electrochemical cell was mounted on a Physik Instrumente Mars xyz piezoelectric stage (lateral stroke 100 μm, resolution 2 nm) sitting on a hexapod mounted on a (3 + 2 circle) goniometer. Liquid electrolyte was continuously pumped through the cell during all measurements by a peristaltic pump. The diffracted beam was recorded with a 2D Maxipix photon-counting detector (pixel size 55 × 55 μm2) positioned on the detector arm at a distance of 0.87 m. We measured 002 Pt Bragg reflection in three dimensions by rotating the particle around the Bragg angle (16.12°) through 1°, in steps of 0.0125° with a counting time of 0.2 s per point and total flux of about 1.4 × 1012 counts s–1 μm2. The detector was positioned at an out-of-plane angle of around 28°. The timescale of one BCDI measurement was ~10 min.

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