Výsledky vyhledávání - "Géraldine Layrac"

Multiscale Mechanistic Study of the Adsorption of Methyl Orange on the External Surface of Layered Double Hydroxide

Autor: Géraldine Layrac, Rozenn Le-Parc, Gaelle Martin-Gassin, Benedicte Prelot, Jean-Louis Bantignies, Jerzy Zajac, Brian Grégoire, Didier Tichit

Publikováno v: Journal of Physical Chemistry C
Journal of Physical Chemistry C, American Chemical Society, 2019, 123 (36), pp.22212-22220. ⟨10.1021/acs.jpcc.9b04705⟩

The molecular mechanism of Methyl Orange (MO) dye adsorption on the external surface of Mg2Al–CO3 layered double hydroxide (LDH) was investigated by combining adsorption isotherms, X-ray diffractio...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::085b689b6b06647555c8e21cda1bbd15
https://doi.org/10.1021/acs.jpcc.9b04705

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Comprehensive study of the formation of stable colloids of Cu Al layered double hydroxide assisted by double hydrophilic block copolymers

Autor: Simon Harrisson, Mathias Destarac, Didier Tichit, Géraldine Layrac, Corine Gérardin

Publikováno v: Applied Clay Science
Applied Clay Science, Elsevier, 2020, 193, pp.105673. ⟨10.1016/j.clay.2020.105673⟩
Applied Clay Science, 2020, 193, pp.105673. ⟨10.1016/j.clay.2020.105673⟩

The formation of stable aqueous colloidal suspensions of Cu Al layered double hydroxide (LDH) assisted by double-hydrophilic block copolymers was investigated. It was of utmost importance since the direct preparation LDH colloids of controlled size i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::92a7ad66911ff7dc09f7abdcd763972c
https://hal.archives-ouvertes.fr/hal-02873439

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Design of 3D multi-layered electrospun membranes embedding iron-based layered double hydroxide for drug storage and control of sustained release

Autor: Vera R. L. Constantino, Mariana Pires Figueiredo, Guy Schlatter, Géraldine Layrac, Jocelyne Brendlé, Anne Hébraud, Lionel Limousy

Publikováno v: European Polymer Journal
European Polymer Journal, Elsevier, 2020, 131, pp.109675-. ⟨10.1016/j.eurpolymj.2020.109675⟩
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
European Polymer Journal, 2020, 131, pp.109675-. ⟨10.1016/j.eurpolymj.2020.109675⟩

International audience; Nowadays polymer dressings are expected to possess multiply functions. Besides acting as physical barriers, dressings may provide for the injured tissue species able to turn wound healing process faster and painless. In this w

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4ae4e73dcfc91f11fb613e27521ede90
https://hal.archives-ouvertes.fr/hal-03490185

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Influence of Mn content on the catalytic properties of Cu-(Mn)-Zn-Mg-Al mixed oxides derived from LDH precursors in the total oxidation of methane

Autor: Géraldine Layrac, Ioan-Cezar Marcu, Didier Tichit, Florica Papa, Catalin Negrila, Monica Raciulete

Publikováno v: Catalysis Today. 306:276-286

Cu-(Mn)-Zn-Mg-Al mixed oxides with Cu/Zn atomic ratio of 1 and different Mn contents were synthesized by thermal decomposition of layered double hydroxides (LDHs) precursors. They were characterized using X-ray diffraction, textural measurements, EDX

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7d9c7769461554d5e0dcad9a25261e3c
https://doi.org/10.1016/j.cattod.2017.01.013

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Synthesis of layered double hydroxides through continuous flow processes: A review

Autor: Corine Gérardin, Géraldine Layrac, Didier Tichit

Publikováno v: Chemical Engineering Journal
Chemical Engineering Journal, Elsevier, 2019, 369, pp.302-332. ⟨10.1016/j.cej.2019.03.057⟩

International audience; Continuous production processes allow scaling up of layered double hydroxides (LDHs) and avoid the drawbacks induced by conventional coprecipitation. These drawbacks result from variable supersaturation rate due to non constan

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b49ec70c4f8c3114848ed7aecab539e4
https://hal.umontpellier.fr/hal-02114578

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Influence of the preparation route on the basicity of La-containing mixed oxides obtained from LDH precursors

Autor: Iuliana Cota, Géraldine Layrac, Corine Gérardin, Francisco Medina, Didier Tichit, Eliana Ramírez

Publikováno v: Journal of Molecular Catalysis A: Chemical. 412:101-106

A series of La-containing Mg(Al)O mixed oxide catalysts were obtained from layered double hydroxide (LDH) precursors following different La 3+ incorporation methods, i.e., coprecipitation, impregnation and intercalation. Structural and textural prope

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::12d0d03972d87f1c77d2437b4a648fbf
https://doi.org/10.1016/j.molcata.2015.11.022

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Hybrid polyion complex micelles from poly(vinylphosphonic acid)-based double hydrophilic block copolymers and divalent transition metal ions

Autor: Géraldine Layrac, Didier Tichit, Mathias Destarac, Corine Gérardin, Simon Harrisson

Publikováno v: Polymer
Polymer, Elsevier, 2015, 72, pp.292-300. ⟨10.1016/j.polymer.2015.04.031⟩
Polymer, 2015, 72, pp.292-300. ⟨10.1016/j.polymer.2015.04.031⟩

Double-hydrophilic block copolymers (DHBC) containing neutral polyacrylamide and ionizable poly(vinylphosphonic acid) blocks were directly synthesized by quantitative chain extension of a polyacrylamide macroxanthate with vinylphosphonic acid. Format

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e6865a8a4756166b62ed136a1d8b8ae
https://doi.org/10.1016/j.polymer.2015.04.031

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New synthesis route of hydrocalumite-type materials and their application as basic catalysts for aldol condensation

Autor: Eliana Ramírez, Jesús E. Sueiras, Francisco Medina, Iulianaa Cota, Géraldine Layrac, Didier Tichit

Publikováno v: Applied Clay Science
Applied Clay Science, Elsevier, 2010, 50, pp.498. ⟨10.1016/j.clay.201009.019⟩

An attempt was made to directly synthesize a Bronsted-type catalyst based on the hydrocalumite-like structure by controlled hydrolysis of calcium and aluminium alkoxides. Solids belonging to the AFm and hydrogrossular families were obtained by dissol

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e3fe7a143e3e3903c22fa82ee4138087
https://doi.org/10.1016/j.clay.2010.09.019

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Highly basic catalysts obtained by intercalation of La-containing anionic complexes in layered double hydroxides

Autor: Jesús E. Sueiras, Iuliana Cota, Géraldine Layrac, Eliana Ramírez, Didier Tichit, Francisco Medina

Publikováno v: Applied Catalysis A : General
Applied Catalysis A : General, Elsevier, 2010, 382 (2), pp.272. ⟨10.1016/j.apcata.2010.05.006⟩

Nanocomposites have been obtained by intercalation of preformed negatively charged guest La hydroxy citrate colloids into host Mg/Al layered double hydroxides (LDH). These compounds have been used as precursors for La/Mg(Al)O mixed oxides catalysts.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a521601e82b51321352b95841167172a
https://doi.org/10.1016/j.apcata.2010.05.006

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Study of Adsorption and Intercalation of Orange-Type Dyes into Mg-Al Layered Double Hydroxide

Autor: Fabrice Salles, Gaelle Martin-Gassin, Didier Tichit, Géraldine Layrac, Jerzy Zajac, Ganna Darmograi, Benedicte Prelot

Publikováno v: Journal of Physical Chemistry C
Journal of Physical Chemistry C, American Chemical Society, 2015, 119 (41), pp.23388-23397. ⟨10.1021/acs.jpcc.5b05510⟩

In the context of depollution and textile wastewater treatment, the sorption-based processes are good candidates to achieve the efficient removal of such toxics substances as dyes. In the present study, the exchange–adsorption from aqueous solution

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba3f294beba3425d1625db9f16e9357f
https://hal.archives-ouvertes.fr/hal-01203769

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