Titre :

Porous and Water Stable 2D Hybrid Metal Halide with Broad Light Emission and Selective H2O Vapor Sorption

Auteur(s) :

Azmy, Ali [Auteur]
Li, Shunran [Auteur]
Angeli, Giasemi K. [Auteur]
Welton, Claire [Auteur]
Raval, Parth [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Li, Min [Auteur]
Zibouche, Nourdine [Auteur]
Wojtas, Lukasz [Auteur]
Reddy, Manjunatha [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Guo, Peijun [Auteur]
Trikalitis, Pantelis N. [Auteur]
Spanopoulos, Ioannis [Auteur]

Titre de la revue :

Angewandte Chemie International Edition

Nom court de la revue :

Angew Chem Int Ed

Numéro :

62

Éditeur :

Wiley

Date de publication :

2023-02-10

Discipline(s) HAL :

Chimie/Chimie inorganique

Résumé en anglais : [en]

AbstractIn this work we report a strategy for generating porosity in hybrid metal halide materials using molecular cages that serve as both structure‐directing agents and counter‐cations. Reaction of the [2.2.2] cryptand ...
Lire la suite >AbstractIn this work we report a strategy for generating porosity in hybrid metal halide materials using molecular cages that serve as both structure‐directing agents and counter‐cations. Reaction of the [2.2.2] cryptand (DHS) linker with PbII in acidic media gave rise to the first porous and water‐stable 2D metal halide semiconductor (DHS)2Pb5Br14. The corresponding material is stable in water for a year, while gas and vapor‐sorption studies revealed that it can selectively and reversibly adsorb H2O and D2O at room temperature (RT). Solid‐state NMR measurements and DFT calculations verified the incorporation of H2O and D2O in the organic linker cavities and shed light on their molecular configuration. In addition to porosity, the material exhibits broad light emission centered at 617 nm with a full width at half‐maximum (FWHM) of 284 nm (0.96 eV). The recorded water stability is unparalleled for hybrid metal halide and perovskite materials, while the generation of porosity opens new pathways towards unexplored applications (e.g. solid‐state batteries) for this class of hybrid semiconductors.Lire moins >

Langue :

Anglais

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

Université de Lille
CNRS
Centrale Lille
ENSCL
Univ. Artois

Collections :

• Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181

Équipe(s) de recherche :

RMN et matériaux inorganiques (RM2I)

Date de dépôt :

2024-04-03T13:42:56Z