Structure and Catalytic Characterization of a Second Framework Al(IV) Site in Zeolite Catalysts Revealed by NMR at 35.2 T

Ultrahigh field 27Al­{1H} 2D correlation NMR experiments demonstrate that at least two framework Al­(IV) sites with hydroxyl groups can exist in acidic zeolite catalysts in their dehydrated and catalytically active states. In addition to the known Al­(IV) at the framework bridging acid site (BAS), a...

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Veröffentlicht in:	Journal of the American Chemical Society 2020-04, Vol.142 (16), p.7514-7523
Hauptverfasser:	Chen, Kuizhi, Horstmeier, Sarah, Nguyen, Vy. T, Wang, Bin, Crossley, Steven P, Pham, Tram, Gan, Zhehong, Hung, Ivan, White, Jeffery L
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext
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