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Title: Mapping Metals Incorporation of a Whole Single Catalyst Particle Using Element Specific X-ray Nanotomography

Journal Article · · Journal of the American Chemical Society
DOI:https://doi.org/10.1021/ja511503d· OSTI ID:1214384
 [1];  [2];  [1];  [2];  [2];  [1]
  1. Utrecht Univ. (The Netherlands)
  2. SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Synchrotron Radiation Lightsource (SSRL)

Full-field transmission X-ray microscopy has been used to determine the 3D structure of a whole individual fluid catalytic cracking (FCC) particle at high spatial resolution and in a fast, noninvasive manner, maintaining the full integrity of the particle. Using X-ray absorption mosaic imaging to combine multiple fields of view, computed tomography was performed to visualize the macropore structure of the catalyst and its availability for mass transport. We mapped the relative spatial distributions of Ni and Fe using multiple-energy tomography at the respective X-ray absorption K-edges and correlated these distributions with porosity and permeability of an equilibrated catalyst (E-cat) particle. Both metals were found to accumulate in outer layers of the particle, effectively decreasing porosity by clogging of pores and eventually restricting access into the FCC particle.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC03-76SF00515
OSTI ID:
1214384
Journal Information:
Journal of the American Chemical Society, Vol. 137, Issue 1; ISSN 0002-7863
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 68 works
Citation information provided by
Web of Science

References (11)

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Comparison of SOFC cathode microstructure quantified using X-ray nanotomography and focused ion beam–scanning electron microscopy journal June 2011
3D Non-destructive morphological analysis of a solid oxide fuel cell anode using full-field X-ray nano-tomography journal November 2012
Nanoscale elemental sensitivity study of Nd 2 Fe 14 B using absorption correlation tomography : Nanoscale Elemental Sensitivity Study of N journal August 2013
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Cited By (21)

Spatial and temporal exploration of heterogeneous catalysts with synchrotron radiation journal August 2018
Non-empirical identification of trigger sites in heterogeneous processes using persistent homology journal February 2018
The frontiers of energy journal January 2016
Micro-spectroscopy of HKUST-1 metal–organic framework crystals loaded with tetracyanoquinodimethane: effects of water on host–guest chemistry and electrical conductivity journal January 2019
Nickel Poisoning of a Cracking Catalyst Unravelled by Single‐Particle X‐ray Fluorescence‐Diffraction‐Absorption Tomography journal January 2020
Chemical imaging of Fischer-Tropsch catalysts under operating conditions journal March 2017
Nickel Poisoning of a Cracking Catalyst Unravelled by Single‐Particle X‐ray Fluorescence‐Diffraction‐Absorption Tomography journal January 2020
Magnetophoretic Sorting of Single Catalyst Particles journal August 2018
Tailoring and visualizing the pore architecture of hierarchical zeolites journal January 2015
Visualization of the effect of additives on the nanostructures of individual bio-inspired calcite crystals journal January 2019
Fluid catalytic cracking technology: current status and recent discoveries on catalyst contamination journal December 2018
Materials characterization by synchrotron x-ray microprobes and nanoprobes journal June 2018
Oxygen-diffusion-driven oxidation behavior and tracking areas visualized by X-ray spectro-ptychography with unsupervised learning journal April 2019
Assessment of the Location of Pt Nanoparticles in Pt/zeolite Y/γ‐Al 2 O 3 Composite Catalysts journal October 2019
Fluid catalytic cracking: recent developments on the grand old lady of zeolite catalysis journal January 2015
Magnetophoretic Sorting of Single Catalyst Particles journal August 2018
Nanoscale Chemical Imaging of an Individual Catalyst Particle with Soft X-ray Ptychography journal February 2016
FIB-SEM Tomography Probes the Mesoscale Pore Space of an Individual Catalytic Cracking Particle journal April 2016
Relating structure and composition with accessibility of a single catalyst particle using correlative 3-dimensional micro-spectroscopy journal August 2016
A three-dimensional view of structural changes caused by deactivation of fluid catalytic cracking catalysts journal October 2017
Life and death of a single catalytic cracking particle journal April 2015

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