Acidity enhancement through synergy of penta- and tetra-coordinated aluminum species in amorphous silica networks

Increasing the strength of silanols in silica-aluminas can promote their catalytic activity in various applications. Here, the authors present a synergistic effect of two neighboring Al sites on the same silanol group, which can enhance the strength of silanol proton from moderate to zeolitic streng...

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Auteurs principaux: Zichun Wang, Tong Li, Yijiao Jiang, Olivier Lafon, Zongwen Liu, Julien Trébosc, Alfons Baiker, Jean-Paul Amoureux, Jun Huang
Format: article
Langue:EN
Publié: Nature Portfolio 2020
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Accès en ligne:https://doaj.org/article/fc76e65a908e42d69a30d3637bfab425
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Résumé:Increasing the strength of silanols in silica-aluminas can promote their catalytic activity in various applications. Here, the authors present a synergistic effect of two neighboring Al sites on the same silanol group, which can enhance the strength of silanol proton from moderate to zeolitic strength.