MQMAS spectra of half-integer quadrupolar nuclei enhanced by indirect DNP

Autor: Hiroki Nagashima, Julien Trébosc, Olivier Lafon, Jean-Paul Amoureux

Publikováno v: Journal of Magnetic Resonance Open, Vol 21, Iss , Pp 100177- (2024)

The observation of half-integer quadrupolar nuclei, which represent 66 % of the NMR-active isotopes, is essential to understand the atomic-level structure of inorganic materials near the surfaces with applications in the field of catalysis, biomateri

Externí odkaz: https://doaj.org/article/756d13389d0d4a41a8cac22ce8a2d12e

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

Autor: Zichun Wang, Tong Li, Yijiao Jiang, Olivier Lafon, Zongwen Liu, Julien Trébosc, Alfons Baiker, Jean-Paul Amoureux, Jun Huang

Publikováno v: Nature Communications, Vol 11, Iss 1, Pp 1-9 (2020)

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

Externí odkaz: https://doaj.org/article/fc76e65a908e42d69a30d3637bfab425

Combining Fast 2D NMR Methods and Oriented Media

Autor: Philippe Lesot, Olivier Lafon

Publikováno v: Fast 2D Solution-state NMR ISBN: 9781839164002

NMR in oriented samples (anisotropic solvents) offers access to informative residual order-dependent NMR interactions, including chemical shift anisotropies (RCSAs), dipolar couplings (RDCs), and quadrupolar couplings (RQCs), while preserving high sp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a0ccd6f7c72465f46fc2e647b287d67f
https://doi.org/10.1039/bk9781839168062-00441

B2O3-Doped LATP Glass-Ceramics Studied by X-ray Diffractometry and MAS NMR Spectroscopy Methods

Autor: Wioleta Ślubowska, Lionel Montagne, Olivier Lafon, François Méar, Konrad Kwatek

Publikováno v: Nanomaterials, Vol 11, Iss 2, p 390 (2021)

Two families of glasses in the Li2O-Al2O3-B2O3-TiO2-P2O5 system were prepared via two different synthesis routes: melt-quenching and ball-milling. Subsequently, they were submitted to crystallization and yielded the Li1.3Al0.3Ti1.7(PO4)3 (LATP)-based

Externí odkaz: https://doaj.org/article/963c664525d44ddba72d70d2971f81d5

Advances in the characterization of inorganic solids using NMR correlation experiments

Autor: Andrew G.M. Rankin, Frédérique Pourpoint, Nghia Tuan Duong, Laurent Delevoye, Jean-Paul Amoureux, Olivier Lafon

Publikováno v: Reference Module in Chemistry, Molecular Sciences and Chemical Engineering
Reference Module in Chemistry, Molecular Sciences and Chemical Engineering, Elsevier, 2023, ⟨10.1016/B978-0-12-823144-9.00192-8⟩
Comprehensive Inorganic Chemistry III ISBN: 9780128231531

International audience; As a local characterization technique endowed with atomic resolution, solid-state NMR spectroscopy provides unique insights on the atomic-level structure and dynamics of inorganic and hybrid materials. In particular, two-dimen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::698f4311bdec68957084ba7e9f00f5c6
https://cnrs.hal.science/hal-03995696/file/220820_OL_correlation.pdf