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Tunable CHA/AEI Zeolite Intergrowths with A Priori Biselective Organic Structure-Directing Agents : Controlling Enrichment and Implications for Selective Catalytic Reduction of NOx

Bello-Jurado, Estefanía (author)
Schwalbe-Koda, Daniel (author)
Nero, Mathias (author)
Stockholms universitet,Institutionen för material- och miljökemi (MMK)
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Paris, Cecilia (author)
Uusimäki, Toni (author)
Stockholms universitet,Institutionen för material- och miljökemi (MMK)
Román-Leshkov, Yuriy (author)
Corma, Avelino (author)
Willhammar, Tom, 1982- (author)
Stockholms universitet,Institutionen för material- och miljökemi (MMK)
Gómez-Bombarelli, Rafael (author)
Moliner, Manuel (author)
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 (creator_code:org_t)
2022-05-19
2022
English.
In: Angewandte Chemie International Edition. - : Wiley. - 1433-7851 .- 1521-3773. ; 61:28
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • A novel ab initio methodology based on high-throughput simulations has permitted designing unique biselective organic structure-directing agents (OSDAs) that allow the efficient synthesis of CHA/AEI zeolite intergrowth materials with controlled phase compositions. Distinctive local crystallographic ordering of the CHA/AEI intergrowths was revealed at the nanoscale level using integrated differential phase contrast scanning transmission electron microscopy (iDPC STEM). These novel CHA/AEI materials have been tested for the selective catalytic reduction (SCR) of NOx, presenting an outstanding catalytic performance and hydrothermal stability, even surpassing the performance of the well-established commercial CHA-type catalyst. This methodology opens the possibility for synthetizing new zeolite intergrowths with more complex structures and unique catalytic properties. 

Subject headings

NATURVETENSKAP  -- Kemi (hsv//swe)
NATURAL SCIENCES  -- Chemical Sciences (hsv//eng)

Keyword

CHA/AEI intergrowths
Biselective OSDAs
Cu-containing zeolites
SCR-NOx
Machine Learning

Publication and Content Type

ref (subject category)
art (subject category)

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