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Stabilization of Ex...
Stabilization of Extra-Large-Pore Zeolite by Boron Substitution for the Production of Commercially Applicable Catalysts
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Chen, Pohua (författare)
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Xie, Mingguan (författare)
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Zhai, Yunping (författare)
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Wang, Youju (författare)
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- Huang, Zhehao (författare)
- Stockholms universitet,Institutionen för material- och miljökemi (MMK)
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- Yang, Taimin, 1991- (författare)
- Stockholms universitet,Institutionen för material- och miljökemi (MMK)
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Sun, Wenjia (författare)
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Wang, Yongrui (författare)
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Sun, Junliang (författare)
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(creator_code:org_t)
- 2022-09-06
- 2022
- Engelska.
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Ingår i: Chemistry - A European Journal. - : Wiley. - 0947-6539 .- 1521-3765. ; 28:63
- Relaterad länk:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Stable extra-large-pore zeolites are desirable for industrial purposes due to their ability to accommodate bulky reactants and diffusion through channels. Although there are several extra-large pore zeolites reported, stable ones are rare. Thus, their stabilization is a feasible strategy for industrial applications. Here, an extra-large-pore zeolite EWT with boron substitution is presented, and the resulting zeolite B-RZM-3 increased the thermal stability from 600 °C in its silica form to 850 °C. The crystal structure, determined by combining continuous rotation electron diffraction (cRED) and powder X-ray diffraction (PXRD), shows that B atoms preferentially substitute the interrupted (HO)T(OT)3 (Q3) sites and are partially converted into 3-coordination to relax framework deformation upon heating. After Al-reinsertion post-treatment, Al-B-RZM-3 shows higher ethylbenzene selectivity and ethylene conversion rate per mol acid site than commercial ZSM-5 and Beta zeolite in benzene alkylation reaction. Synthesizing extra-large-pore zeolite in borosilicate form is a potential approach to stabilize interrupted zeolites for commercial applications.
Ämnesord
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
Nyckelord
- boronsilicate
- boron location
- extra-large pores
- structure elucidation
- zeolites
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Chen, Pohua
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Xie, Mingguan
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Zhai, Yunping
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Wang, Youju
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Huang, Zhehao
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Yang, Taimin, 19 ...
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visa fler...
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Sun, Wenjia
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Wang, Yongrui
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Sun, Junliang
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visa färre...
- Om ämnet
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- NATURVETENSKAP
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NATURVETENSKAP
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och Kemi
- Artiklar i publikationen
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Chemistry - A Eu ...
- Av lärosätet
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Stockholms universitet