skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Nanoscale Chemical Imaging of an Individual Catalyst Particle with Soft X-ray Ptychography

Abstract

Understanding Fe deposition in fluid catalytic cracking (FCC) catalysis is critical for the mitigation of catalyst degradation. We employ soft X-ray ptychography to determine at the nanoscale the distribution and chemical state of Fe in an aged FCC catalyst particle. We also show that both particle swelling due to colloidal Fe deposition and Fe penetration into the matrix as a result of precracking of large organic molecules occur. Furthermore, the application of ptychography allowed us to provide direct visual evidence for these two distinct Fe-based deactivation mechanisms, which have so far been proposed only on the basis of indirect evidence.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1242441
Alternate Identifier(s):
OSTI ID: 1379261
Grant/Contract Number:  
AC02-05CH11231; AC02-76SF00515
Resource Type:
Journal Article: Published Article
Journal Name:
ACS Catalysis
Additional Journal Information:
Journal Name: ACS Catalysis Journal Volume: 6; Journal ID: ISSN 2155-5435
Publisher:
American Chemical Society
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; fluid catalytic cracking; chemical imaging; catalyst deactivation; iron and soft X-ray ptychography

Citation Formats

Wise, Anna M., Weker, Johanna Nelson, Kalirai, Sam, Farmand, Maryam, Shapiro, David A., Meirer, Florian, and Weckhuysen, Bert M. Nanoscale Chemical Imaging of an Individual Catalyst Particle with Soft X-ray Ptychography. United States: N. p., 2016. Web. doi:10.1021/acscatal.6b00221.
Wise, Anna M., Weker, Johanna Nelson, Kalirai, Sam, Farmand, Maryam, Shapiro, David A., Meirer, Florian, & Weckhuysen, Bert M. Nanoscale Chemical Imaging of an Individual Catalyst Particle with Soft X-ray Ptychography. United States. https://doi.org/10.1021/acscatal.6b00221
Wise, Anna M., Weker, Johanna Nelson, Kalirai, Sam, Farmand, Maryam, Shapiro, David A., Meirer, Florian, and Weckhuysen, Bert M. 2016. "Nanoscale Chemical Imaging of an Individual Catalyst Particle with Soft X-ray Ptychography". United States. https://doi.org/10.1021/acscatal.6b00221.
@article{osti_1242441,
title = {Nanoscale Chemical Imaging of an Individual Catalyst Particle with Soft X-ray Ptychography},
author = {Wise, Anna M. and Weker, Johanna Nelson and Kalirai, Sam and Farmand, Maryam and Shapiro, David A. and Meirer, Florian and Weckhuysen, Bert M.},
abstractNote = {Understanding Fe deposition in fluid catalytic cracking (FCC) catalysis is critical for the mitigation of catalyst degradation. We employ soft X-ray ptychography to determine at the nanoscale the distribution and chemical state of Fe in an aged FCC catalyst particle. We also show that both particle swelling due to colloidal Fe deposition and Fe penetration into the matrix as a result of precracking of large organic molecules occur. Furthermore, the application of ptychography allowed us to provide direct visual evidence for these two distinct Fe-based deactivation mechanisms, which have so far been proposed only on the basis of indirect evidence.},
doi = {10.1021/acscatal.6b00221},
url = {https://www.osti.gov/biblio/1242441}, journal = {ACS Catalysis},
issn = {2155-5435},
number = ,
volume = 6,
place = {United States},
year = {Fri Apr 01 00:00:00 EDT 2016},
month = {Fri Apr 01 00:00:00 EDT 2016}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at https://doi.org/10.1021/acscatal.6b00221

Citation Metrics:
Cited by: 62 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

Recommendations for the characterization of porous solids (Technical Report)
journal, January 1994


Porous materials in catalysis: challenges for mesoporous materials
journal, January 2013


Chapter 13 Studies of iron effects on FCC catalysts
book, January 2007


Nickel in Petroleum Refining
journal, January 2001


Coherent imaging at the diffraction limit
journal, August 2014


Deactivation of FCC catalysts
journal, September 2008


Study of the accessibility effect on the irreversible deactivation of FCC catalysts from contaminant feed metals
journal, September 2007


Vanadium passivation of cracking catalysts by imaging secondary ion mass spectrometry
journal, January 1995


Single and combined Fluidized Catalytic Cracking (FCC) catalyst deactivation by iron and calcium metal–organic contaminants
journal, January 2014


Chapter 6 Instrumental Methods of FCC Catalyst Characterization
book, January 1993


Mechanism of fluid cracking catalysts deactivation by Fe
book, January 2004

  • Yaluris, G.; Cheng, W. -C.; Peters, M.
  • Fluid Catalytic Cracking VI - Preparation and Characterization of Catalysts, Proceedings of the 6th International Symposium in Fluid Cracking Catalysts (FCCs)
  • https://doi.org/10.1016/S0167-2991(04)80760-2

High-Resolution Scanning X-ray Diffraction Microscopy
journal, July 2008


Mapping Metals Incorporation of a Whole Single Catalyst Particle Using Element Specific X-ray Nanotomography
journal, January 2015


Chemical effects at metal/oxide interfaces studied by x-ray-absorption spectroscopy
journal, November 2001


Life and death of a single catalytic cracking particle
journal, April 2015


Agglutination of single catalyst particles during fluid catalytic cracking as observed by X-ray nanotomography
journal, January 2015


Novel lab-scale deactivation method for FCC catalyst: inducing realistic accessibility responses to iron poisoning
journal, August 2003


Chemical composition mapping with nanometre resolution by soft X-ray microscopy
journal, September 2014


Designing FCC catalysts with high-silica Y zeolites
journal, August 1991


On the mechanisms of cation diffusion processes in ternary feldspars
journal, January 1990


On the interaction of vanadium and nickel compounds with cracking catalyst
journal, December 1984


Hard-X-Ray Lensless Imaging of Extended Objects
journal, January 2007


Effect of metals poisoning on FCC products yields: studies in an FCC short contact time pilot plant unit
journal, February 2001


Fluid catalytic cracking: recent developments on the grand old lady of zeolite catalysis
journal, January 2015


Catalytic behaviour of nickel and iron metal contaminants of an FCC catalyst after oxidative and reductive thermal treatments
journal, August 2008


FCC Catalysts
book, January 2012


Visualization of the Equilibrium FCC Catalyst Surface by AFM and SEM–EDS
journal, October 2003