Titre :

Ultra-High-Field <SUP>67</SUP>Zn and <SUP>33</SUP>S NMR Studies Coupled with DFT Calculations Reveal the Structure of ZnS Nanoplatelets Prepared by an Organometallic Approach

Auteur(s) :

Bellan, E. [Auteur]
Maleki, F. [Auteur]
Università degli Studi di Milano-Bicocca = University of Milano-Bicocca [UNIMIB]
Jakoobi, M. [Auteur]
Fau, P. [Auteur]
Fajerwerg, K. [Auteur]
Lagarde, D. [Auteur]
Balocchi, A. [Auteur]
Lecante, P. [Auteur]
Trebosc, Julien [Auteur]
IMEC [IMEC]
Xu, Y. J. [Auteur]
National High Magnetic Field Laboratory [MPA-NHMFL]
Gan, Z. H. [Auteur]
National High Magnetic Field Laboratory [MPA-NHMFL]
Pautrot-D'alenã§on, L. [Auteur]
Le Mercier, T. [Auteur]
Nagashima, H. [Auteur]
National Institute of Advanced Industrial Science and Technology [AIST]
Pacchioni, G. [Auteur]
Università degli Studi di Milano-Bicocca = University of Milano-Bicocca [UNIMIB]
Lafon, Olivier [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Coppel, Y. [Auteur]
Kahn, M. L. [Auteur]
Pautrot-D'alenã§on, L. [Auteur]

Titre de la revue :

The Journal of Physical Chemistry C

Nom court de la revue :

J. Phys. Chem. C

Numéro :

127

Pagination :

17809–17819

Date de publication :

2023-10-11

ISSN :

1932-7447

Mot(s)-clé(s) en anglais :

Defects
Defects in solids
Layers
Nanoparticles
Nuclear magnetic resonance spectroscopy

Discipline(s) HAL :

Chimie/Chimie inorganique

Résumé en anglais : [en]

Herein, we report the successful characterization of sulfur vacancies in ZnS nanoplatelets by in-depth high-field and DNP-enhanced solid-state NMR of 33S and 67Zn nuclei and DFT modeling. This two-dimensional 1 nm-thick ...
Lire la suite >Herein, we report the successful characterization of sulfur vacancies in ZnS nanoplatelets by in-depth high-field and DNP-enhanced solid-state NMR of 33S and 67Zn nuclei and DFT modeling. This two-dimensional 1 nm-thick nanomaterial was obtained by reacting a dicyclohexyl zinc complex, ZnCy2, with (TMS)2S as the S source under mild conditions (45 °C) in dodecylamine. The joint experimental and theoretical studies on these nanoplatelets evidenced that a large fraction of the Zn and S atoms are located near the surface covered by dodecylamine and that the deviation from stoichiometry (agreeing with energy gap and photoluminescence properties of non-stoichiometric material) is due to sulfur vacancies. Additionally, this work reports the first 33S DNP-NMR spectrum reported in the literature alongside several ultra-high-field 33S and 67Zn solid-state NMR spectra.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 :

2023-10-20T07:01:49Z
2023-11-06T16:53:26Z
2023-11-09T15:31:45Z