Rational design, synthesis, characterization and catalytic properties of high-quality low-silica hierarchical FAU- and LTA-type zeolites

Abstract Despite the development of several synthetic strategies employing various templates as (pore) structure directing agents, the preparation of high-quality aluminum-rich hierarchical zeolites (designated as ZH) with Si/Al < 5 from its molecular precursors is still a challenge to the scient...

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Autores principales:	Rajesh K. Parsapur, Parasuraman Selvam
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Hierarchical Zeolites Zeolitization Process Diffuse Reflectance Infrared Fourier Transformation Spectroscopy (DRIFTS) Micellar Aggregates ICDD Card Medicine R Science Q
Acceso en línea:	https://doaj.org/article/fa7106d51bfb4698840938c95c150e62
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spelling	oai:doaj.org-article:fa7106d51bfb4698840938c95c150e622021-12-02T15:08:49ZRational design, synthesis, characterization and catalytic properties of high-quality low-silica hierarchical FAU- and LTA-type zeolites10.1038/s41598-018-34479-42045-2322https://doaj.org/article/fa7106d51bfb4698840938c95c150e622018-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-34479-4https://doaj.org/toc/2045-2322Abstract Despite the development of several synthetic strategies employing various templates as (pore) structure directing agents, the preparation of high-quality aluminum-rich hierarchical zeolites (designated as ZH) with Si/Al < 5 from its molecular precursors is still a challenge to the scientific community. For the first time, we report here, a successful synthesis methodology for the preparation of hierarchical zeolites, having FAU and LTA topologies with uniform micropores and mesopores by a rationally designed method. Here, a stable supramolecular self-assembly was achieved under the challenging synthesis conditions by tailoring the zeolitization process, viz., by a homogeneous nucleation and a multi-step crystallization. This has resulted in regular mesoporosity in FAU-type zeolites and a unique mesoporosity in LTA-type zeolites, hitherto not reported so far.Rajesh K. ParsapurParasuraman SelvamNature PortfolioarticleHierarchical ZeolitesZeolitization ProcessDiffuse Reflectance Infrared Fourier Transformation Spectroscopy (DRIFTS)Micellar AggregatesICDD CardMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-13 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Hierarchical Zeolites Zeolitization Process Diffuse Reflectance Infrared Fourier Transformation Spectroscopy (DRIFTS) Micellar Aggregates ICDD Card Medicine R Science Q
spellingShingle	Hierarchical Zeolites Zeolitization Process Diffuse Reflectance Infrared Fourier Transformation Spectroscopy (DRIFTS) Micellar Aggregates ICDD Card Medicine R Science Q Rajesh K. Parsapur Parasuraman Selvam Rational design, synthesis, characterization and catalytic properties of high-quality low-silica hierarchical FAU- and LTA-type zeolites
description	Abstract Despite the development of several synthetic strategies employing various templates as (pore) structure directing agents, the preparation of high-quality aluminum-rich hierarchical zeolites (designated as ZH) with Si/Al < 5 from its molecular precursors is still a challenge to the scientific community. For the first time, we report here, a successful synthesis methodology for the preparation of hierarchical zeolites, having FAU and LTA topologies with uniform micropores and mesopores by a rationally designed method. Here, a stable supramolecular self-assembly was achieved under the challenging synthesis conditions by tailoring the zeolitization process, viz., by a homogeneous nucleation and a multi-step crystallization. This has resulted in regular mesoporosity in FAU-type zeolites and a unique mesoporosity in LTA-type zeolites, hitherto not reported so far.
format	article
author	Rajesh K. Parsapur Parasuraman Selvam
author_facet	Rajesh K. Parsapur Parasuraman Selvam
author_sort	Rajesh K. Parsapur
title	Rational design, synthesis, characterization and catalytic properties of high-quality low-silica hierarchical FAU- and LTA-type zeolites
title_short	Rational design, synthesis, characterization and catalytic properties of high-quality low-silica hierarchical FAU- and LTA-type zeolites
title_full	Rational design, synthesis, characterization and catalytic properties of high-quality low-silica hierarchical FAU- and LTA-type zeolites
title_fullStr	Rational design, synthesis, characterization and catalytic properties of high-quality low-silica hierarchical FAU- and LTA-type zeolites
title_full_unstemmed	Rational design, synthesis, characterization and catalytic properties of high-quality low-silica hierarchical FAU- and LTA-type zeolites
title_sort	rational design, synthesis, characterization and catalytic properties of high-quality low-silica hierarchical fau- and lta-type zeolites
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/fa7106d51bfb4698840938c95c150e62
work_keys_str_mv	AT rajeshkparsapur rationaldesignsynthesischaracterizationandcatalyticpropertiesofhighqualitylowsilicahierarchicalfauandltatypezeolites AT parasuramanselvam rationaldesignsynthesischaracterizationandcatalyticpropertiesofhighqualitylowsilicahierarchicalfauandltatypezeolites
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Rational design, synthesis, characterization and catalytic properties of high-quality low-silica hierarchical FAU- and LTA-type zeolites

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