NMR investigation of multi-scale dynamics in ionic liquids containing Li+ and La3+: From vehicular to hopping transport mechanism

Autor: Ousmane Karé, Antonio De Souza Braga Neto, Baptiste Rigaud, Quentin Berrod, Sandrine Lyonnard, Clément Cousin, Juliette Sirieix-Plénet, Anne-Laure Rollet, Guillaume Mériguet

Publikováno v: Journal of Ionic Liquids, Vol 4, Iss 1, Pp 100087- (2024)

The dynamics in mixtures of ionic liquid and monoatomic cations has been studied at different time scales ranging from the nanosecond up to the second. The mixtures were composed of cholinium bis(trifluoromethanesulfonyl)imide ([Chol][TFSI]) and LiTF

Externí odkaz: https://doaj.org/article/42980fe7eb0e464db8905753f6a79205

Water sub-diffusion in membranes for fuel cells

Autor: Quentin Berrod, Samuel Hanot, Armel Guillermo, Stefano Mossa, Sandrine Lyonnard

Publikováno v: Scientific Reports, Vol 7, Iss 1, Pp 1-14 (2017)

Abstract We investigate the dynamics of water confined in soft ionic nano-assemblies, an issue critical for a general understanding of the multi-scale structure-function interplay in advanced materials. We focus in particular on hydrated perfluoro-su

Externí odkaz: https://doaj.org/article/08077ea5a1ae447daef91f214fad4c96

(De)Lithiation and Strain Mechanism in Crystalline Ge Nanoparticles

Autor: Diana Zapata Dominguez, Christopher L. Berhaut, Anton Buzlukov, Michel Bardet, Praveen Kumar, Pierre-Henri Jouneau, Antoine Desrues, Adrien Soloy, Cédric Haon, Nathalie Herlin-Boime, Samuel Tardif, Sandrine Lyonnard, Stéphanie Pouget

Publikováno v: ACS Nano
ACS Nano, 2022, 16 (6), pp.9819-9829. ⟨10.1021/acsnano.2c03839⟩

International audience; Germanium is a promising active material for high energy density anodes in Li-ion batteries thanks to its good Li-ion conduction and mechanical properties. However, a deep understanding of the (de)lithiation mechanism of Ge re

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c79fc9f167b6e66f58ef83c1c44e2dff
https://doi.org/10.1021/acsnano.2c03839

How beam damage can skew synchrotron operando studies of batteries

Autor: Thibaut Jousseaume, Jean-François Colin, Marion Chandesris, Sandrine Lyonnard, Samuel Tardif

With the advent of high brilliance 4th generation synchrotron sources, the issue of beam damage on the samples cannot be ignored and deserves a wide attention. It is especially true for operando studies in batteries, since the intense photon fluxes a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fd5a7063acef0a16d229621bc6671e61
https://doi.org/10.26434/chemrxiv-2023-rfp8j

How do H2 oxidation molecular catalysts assemble onto carbon nanotube electrodes? A crosstalk between electrochemical and multi-physical characterization techniques†

Autor: Sandrine Lyonnard, Laura Calvillo, Bertrand Reuillard, Laure Guétaz, Hanako Okuno, Vincent Artero, Gaetano Granozzi, Ahmed Ghedjatti, Nathan Coutard, Pascale Chenevier

Publikováno v: Chemical Science
'Chemical Science ', vol: 12, pages: 15916-15927 (2021)
Chemical Science, 2021, 12 (48), pp.15916-15927. ⟨10.1039/d1sc05168g⟩
Chemical Science, The Royal Society of Chemistry, 2021, 12 (48), pp.15916-15927. ⟨10.1039/d1sc05168g⟩

Molecular catalysts show powerful catalytic efficiency and unsurpassed selectivity in many reactions of interest. As their implementation in electrocatalytic devices requires their immobilization onto a conductive support, controlling the grafting ch

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::db46e6f09ebb294c053a0c024edf5d11
http://europepmc.org/articles/PMC8672770