Ultrathin BPH Nanosheets with Exceptional Water Adsorption Properties
The synthesis of ultrathin BPH zeolite nanosheets from an aluminosilicate colloidal suspension using exclusively inorganic structure directing agents under mild conditions is reported. The improved synthesis yields nanosheets of 4–7 nm and a Si/Al ratio of 1.5; combined 3D electron diffraction and DFT calculations reveal the spatial distribution of extra-framework cations throughout the microporous structure. The ultrathin BPH nanosheets exhibit high and regular intersheet mesoporosity, and substantially improved thermal stability. The notable mesoporosity bestows exceptional water adsorption behavior typically unseen for zeolites; the as-prepared material consists of up to 49% adsorbed H2O by weight and adsorbs up to 32 wt % H2O at 90% relative humidity. 2H MAS NMR spectroscopy identifies different types of O2H environments ascribed to silanol species exhibiting two motion behaviors. H2O sorption analysis demonstrates reproducible behavior over multiple cycles and low temperature regeneration, making the ultrathin BPH nanosheets attractive candidates for gas drying and membrane applications.
Authors
- A. Paecklar (ORCID: https://orcid.org/0000-0003-4180-1923)
- Nicolas Barrier (ORCID: https://orcid.org/0000-0002-5184-2246)
- Izabel C. Medeiros-Costa (ORCID: https://orcid.org/0000-0001-7110-7444)
- Philippe Boullay (ORCID: https://orcid.org/0000-0002-2867-8986)
- Svetlana Mintova (ORCID: https://orcid.org/0000-0002-0738-5244)
- Sajjad Ghojavand (ORCID: https://orcid.org/0000-0003-4136-2406)
- Jean‐Pierre Gilson (ORCID: https://orcid.org/0000-0002-3543-8163)
- Maxime Debost (ORCID: https://orcid.org/0000-0002-1714-2991)
- Eddy Dib (ORCID: https://orcid.org/0000-0001-6062-3128)
- Edwin B. Clatworthy
- Michaël Badawi (ORCID: https://orcid.org/0000-0002-3504-4180)
- Yann Foucaud (ORCID: https://orcid.org/0000-0002-8846-4218)
- Rémy Guillet‐Nicolas (ORCID: https://orcid.org/0000-0001-5971-4292)
Institutions
- Centre National de la Recherche Scientifique (FR)
- École Nationale Supérieure d'Ingénieurs de Caen (FR)
- Laboratoire de Chimie Moléculaire (FR)
- Normandie Université (FR)
- Laboratoire Catalyse et Spectrochimie (FR)
- Total (Belgium) (BE)
- Laboratoire de Cristallographie et Sciences des Matériaux (FR)
- Laboratoire Lorrain de Chimie Moléculaire (FR)
- GeoRessources (FR)
- Université de Lorraine (FR)
- Université de Caen Normandie (FR)
Publication Details
- Journal
- ACS Materials Letters
- Published
- 2024-09-16
- DOI
- https://doi.org/10.1021/acsmaterialslett.4c01625
- Citations
- 3
- Primary Topic
- Zeolite Catalysis and Synthesis
- Type
- article
- Field-Weighted Citation Impact
- 0.48
Funders
- European Commission
- Total
- Grand Équipement National De Calcul Intensif
- Région Normandie
- European Research Council