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Article Dans Une Revue ACS Applied Nano Materials Année : 2021

Room-Temperature Synthesis of BPH Zeolite Nanosheets Free of Organic Template with Enhanced Stability for Gas Separations

Résumé

BPH-type synthetic aluminosilicate zeolite (Linde Q) nanosheets are synthesized at room temperature without organic structure-directing agents (OSDAs). The BPH nanosheets (7 nm thick, 90 nm across; Si/Al = 1.3) are formed in a colloidal suspension using a mixture of structure-directing cations (Cs+, K+, and Na+). In situ XRD reveals the high stability of the BPH nanosheets up to 500 °C under vacuum (0.021 mbar) due to the presence of Cs+. The high CO2 adsorption capacity (3.78 mmol/g) and stability of the BPH nanosheets open the door for the preparation of oriented thin films and membranes for gas separation applications.

Domaines

Matériaux
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Dates et versions

hal-03143339 , version 1 (16-02-2021)

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Edwin Clatworthy, Maxime Debost, Nicolas Barrier, Stéphanie Gascoin, Philippe Boullay, et al.. Room-Temperature Synthesis of BPH Zeolite Nanosheets Free of Organic Template with Enhanced Stability for Gas Separations. ACS Applied Nano Materials, 2021, 4 (1), pp.24-28. ⟨10.1021/acsanm.0c02925⟩. ⟨hal-03143339⟩
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