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Title: Determining the location and nearest neighbours of aluminium in zeolites with atom probe tomography

Abstract

Zeolite catalysis is determined by a combination of pore architecture and Brønsted acidity. As Brønsted acid sites are formed by the substitution of AlO4 for SiO4 tetrahedra, it is of utmost importance to have information on the number as well as the location and neighbouring sites of framework aluminium. Unfortunately, such detailed information has not yet been obtained, mainly due to the lack of suitable characterization methods. Here we report, using the powerful atomic-scale analysis technique known as atom probe tomography, the quantitative spatial distribution of individual aluminium atoms, including their three-dimensional extent of segregation. Ultimately, using a nearest-neighbour statistical analysis, we precisely determine the short-range distribution of aluminium over the different T-sites and determine the most probable Al–Al neighbouring distance within parent and steamed ZSM-5 crystals, as well as assess the long-range redistribution of aluminium upon zeolite steaming.

Authors:
 [1];  [2];  [1];  [3];  [1];  [1];  [4];  [5];  [3]
  1. Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Environmental Molecular Sciences Lab. (EMSL)
  2. Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Inst. for Integrated Catalysis
  3. Univ. of Utrecht (Netherlands)
  4. Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Inst. for Integrated Catalysis; Technische Univ. of Munich, Garching (Germany)
  5. UOP LLC, Des Plaines, IL (United States)
Publication Date:
Research Org.:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
OSTI Identifier:
1260735
Grant/Contract Number:  
AC05-76RL01830
Resource Type:
Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 6; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Perea, Daniel E., Arslan, Ilke, Liu, Jia, Ristanović, Zoran, Kovarik, Libor, Arey, Bruce W., Lercher, Johannes A., Bare, Simon R., and Weckhuysen, Bert M.. Determining the location and nearest neighbours of aluminium in zeolites with atom probe tomography. United States: N. p., 2015. Web. doi:10.1038/ncomms8589.
Perea, Daniel E., Arslan, Ilke, Liu, Jia, Ristanović, Zoran, Kovarik, Libor, Arey, Bruce W., Lercher, Johannes A., Bare, Simon R., & Weckhuysen, Bert M.. Determining the location and nearest neighbours of aluminium in zeolites with atom probe tomography. United States. https://doi.org/10.1038/ncomms8589
Perea, Daniel E., Arslan, Ilke, Liu, Jia, Ristanović, Zoran, Kovarik, Libor, Arey, Bruce W., Lercher, Johannes A., Bare, Simon R., and Weckhuysen, Bert M.. Thu . "Determining the location and nearest neighbours of aluminium in zeolites with atom probe tomography". United States. https://doi.org/10.1038/ncomms8589. https://www.osti.gov/servlets/purl/1260735.
@article{osti_1260735,
title = {Determining the location and nearest neighbours of aluminium in zeolites with atom probe tomography},
author = {Perea, Daniel E. and Arslan, Ilke and Liu, Jia and Ristanović, Zoran and Kovarik, Libor and Arey, Bruce W. and Lercher, Johannes A. and Bare, Simon R. and Weckhuysen, Bert M.},
abstractNote = {Zeolite catalysis is determined by a combination of pore architecture and Brønsted acidity. As Brønsted acid sites are formed by the substitution of AlO4 for SiO4 tetrahedra, it is of utmost importance to have information on the number as well as the location and neighbouring sites of framework aluminium. Unfortunately, such detailed information has not yet been obtained, mainly due to the lack of suitable characterization methods. Here we report, using the powerful atomic-scale analysis technique known as atom probe tomography, the quantitative spatial distribution of individual aluminium atoms, including their three-dimensional extent of segregation. Ultimately, using a nearest-neighbour statistical analysis, we precisely determine the short-range distribution of aluminium over the different T-sites and determine the most probable Al–Al neighbouring distance within parent and steamed ZSM-5 crystals, as well as assess the long-range redistribution of aluminium upon zeolite steaming.},
doi = {10.1038/ncomms8589},
journal = {Nature Communications},
number = ,
volume = 6,
place = {United States},
year = {Thu Jul 02 00:00:00 EDT 2015},
month = {Thu Jul 02 00:00:00 EDT 2015}
}

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