Tous les articles par Gregory CHATEL

Articles published in 2013

2013

[6] G. Chatel,R. Pflieger, E. Naffrechoux, S. I. Nikitenko, J. Suptil, C. Goux-Henry, N. Kardos, B. Andrioletti, M. Draye, ACS Sustain. Chem. Eng.  2013, 1, 137–143. Hydrophobic bis(trifluoromethylsulfonyl)imide based ionic liquids pyrolysis: through the window of the ultrasonic reactor. http://pubs.acs.org/doi/abs/10.1021/sc300068d

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Articles published in 2014

2014

[14] D. Rinsant, G. Chatel,* F. Jérôme, ChemCatChem 2014, 6, 3355–3359. Efficient and selective oxidation of D-glucose into gluconic acid under low frequency ultrasonic irradiation http://onlinelibrary.wiley.com/doi/10.1002/cctc.201402604/abstract  

[13] G. Chatel,* D. R. MacFarlane, Chem. Sov. Rev. 2014, 43, 8132–8149. Ionic liquids and ultrasound in combination: synergies and challenges http://pubs.rsc.org/en/Content/ArticleLanding/2014/CS/C4CS00193A

[12] G. Chatel,* K. De Oliveira Vigier, F. Jérôme, ChemSusChem 2014, 7, 2774–2787. Sonochemistry: what potential for conversion of lignocellulosic biomass into platform chemicals?http://onlinelibrary.wiley.com/doi/10.1002/cssc.201402289/abstract

[11] F. Cheng, H. Wang, G. Chatel, G. Gurau, R. D. Rogers, Bioresour. Technol. 2014, 164,394–401. Facile pulping of lignocellulosic biomass using choline acetate. http://www.sciencedirect.com/science/article/pii/S0960852414006750

[10] P. D. McCrary, G. Chatel, S. A. Alaniz, O. A. Cojocaru, P. A. Beasley, L. A. Flores, S. P. Kelley, P. S. Barber, R. D. Rogers, Energy Fuels 2014, 28, 3460–3473. Evaluating ionic liquids as hypergolic fuels: Exploring reactivity from molecular structure. http://pubs.acs.org/doi/abs/10.1021/ef500264z

[9] G. Chatel, C. Monnier, C. Voiron, N. Kardos,  B. Andrioletti, M. Draye, Appl. Catal. A 2014, 478, 157–164. Green, selective and swift oxidation of cyclic alcohols to corresponding ketones. http://www.sciencedirect.com/science/article/pii/S0926860X14001860

[8] G. Chatel, J. F. B. Pereira, V. Debbeti, H. Wang, R. D. Rogers, Green Chem. 2014, 16, 2051–2083. Mixing ionic liquids – “simple mixtures” or “double salts”? (Article of themed collection: “15 Years of Green Chemistry”) http://pubs.rsc.org/en/content/articlelanding/2014/gc/c3gc41389f Pdf available – Open Access : here

[7] G. Chatel, R. D. Rogers, ACS Sustainable Chem. Eng. 2014, 2, 322–339. Review: Oxidation of lignin using ionic liquids – An innovative strategy to produce renewable chemicals. (Selected as the cover of the journal, March 2014)                           http://pubs.acs.org/doi/abs/10.1021/sc4004086

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Articles published in 2015

2015

[16] K. De Oliveira Vigier, G. Chatel,  F. Jérôme, ChemCatChem 2015, 7, 1250–1260. Contribution of deep eutectic solvents for biomass processing: opportunities, challenges, and limitations. http://onlinelibrary.wiley.com/wol1/doi/10.1002/cctc.201500134/abstract

[15] H. Wang, S. P. Kelley, J. W. Brantley III, G. Chatel, J. Shamshina, J. F. B. Pereira, V. Debbeti, A. S. Myerson, R. D. Rogers, ChemPhysChem 2015, 16, 993–1002. Ionic fluids containing both strongly and weakly interacting ions of the same charge have unique ionic and chemical environments as a function of ion concentration. http://onlinelibrary.wiley.com/doi/10.1002/cphc.201402894/abstract

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Articles published in 2016

2016

[20] F. Jérôme, G. Chatel, K. De Oliveira Vigier Green Chem. 2016, 18, 3903-3913. Depolymerization of cellulose to processable glucans by non-thermal technologies. http://pubs.rsc.org/en/content/articlelanding/2016/gc/c6gc00814c 

[19] L. Novikova,* P. Ayrault, C. Fontaine, G. Chatel,* F. Jérôme, L. Belchinskaya, Ultrason. Sonochem. 2016, 31, 598-609. Effet of low frequency ultrasound on the surface properties of natural aluminosilicates. http://www.sciencedirect.com/science/article/pii/S1350417716300554 

[18] R. Behling, S. Valange, G. Chatel,* Green Chem. 2016, 18, 1839-1854. Heterogeneous catalytic oxidation for lignin valorization into valuable chemicals: What results? What limitations? What trends?http://pubs.rsc.org/en/content/articlelanding/2016/gc/c5gc03061g#!divAbstract

[17] G. Chatel,* L. Novikova, S. Petit, Appl. Clay Sci. 2016, 2, 193–201. How efficiently combine sonochemistry and clay science?  http://www.sciencedirect.com/science/article/pii/S0169131715301472

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Articles published in 2017

2017

[27] L. C. De la Garza, K. De Oliveira Vigier, G. Chatel, A. Moores, Green Chem. 2017, 19, 28552862. Amphiphilic dipyridinium-phosphotungstate as an efficient and recyclable catalyst for triphasic fatty ester epoxidation and oxidative cleavage with hydrogen peroxide. http://pubs.rsc.org/en/content/articlelanding/2017/gc/c7gc00298j/

[26] G. Chatel,* R. Behling, S. Valange, J. C. Colmenares,* ChemCatChem. 2017, 9, 26152621. A combined approach using sonochemistry and photocatalysis: How to apply sonophotocatalysis for biomass conversion? http://onlinelibrary.wiley.com/wol1/doi/10.1002/cctc.201700297/full

[25] E. Kuna, R. Behling, S. Valange, G. Chatel,* J. C. Colmenares,* Top. Cur. Chem. 2017, 375, 41. Sonocatalysis: a potential sustainable pathway for the valorization of lignocellulosic biomass and derivatives. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5396383/

[24] N. Araji, D. D. Madjinza, G. Chatel,* A. Moores, F. Jérôme, K. De Oliveira Vigier,* Green Chem. 2017, 2017, 19, 98–101. Synthesis of C4 dicarboxylic acids from furfural in the presence of betaine hydrochloride and hydrogen peroxide. http://pubs.rsc.org/-/content/articlelanding/2016/gc/c6gc02620f

[23] G. Chatel, E. Naffrechoux, M. Draye, J. Hazard. Mater. 2017, 324, 773–780. Avoid the PCB mistakes: a more sustainable future for ionic liquids. http://www.sciencedirect.com/science/article/pii/S0304389416310901

[22] R. Behling, G. Chatel,* S. Valange,* Ultrason. Sonochem. 2017, 27-35. Sonochemical selective oxidation of vanillyl alcohol in the presence of a cobalt oxide catalyst under mild conditions.  http://www.sciencedirect.com/science/article/pii/S1350417716303832

[21] P. N. Amaniampong, A. Karam, Q. T. Trinh, K. Xu, H. Hirao, F. Jérôme,* G. Chatel,* Sci. Rep. 2017, 7, 40650. Selective and catalyst-free oxidation of D-glucose to D-glucuronic acid induced by high-frequency ultrasound. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5233993/

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Our new article in J. Hazard. Mater.

Avoid the PCB mistakes: A more sustainable future for ionic liquids

Gregory Chatel, Emmanuel Naffrechoux, Micheline Draye

Abstract

Based on our original knowledge and experience on both polychlorinated biphenyls (PCBs) identification in aquatic ecosystems, and use of ionic liquids (ILs) as solvents and/or co-catalysts in green chemistry, we drawn a dared comparison between these two families. Indeed, PCBs has been used during several decades for their new properties, but are now considered as prevalent and persistent pollutants; some toxic effects on environment or human are still revealed. ILs, often designated as “green solvents” are increasingly used in numerous applications, but few studies reported about their environmental impact are still controversial. Through a parallel between properties and applications of PCBs and ILs, we wondered if history could not repeat itself, and how to provide a better future for ILs. Here, we provide some interesting comparisons and we discuss which tracks it could be important to follow for ILs applications in order to avoid the errors done with PCBs.

 Available on the website of Journal of Hazardous Materials

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Our new article in Ultrasonics Sonochemistry!

Sonochemical oxidation of vanillyl alcohol to vanillin in the presence of a cobalt oxide catalyst under mild conditions

Ronan Behling, Gregory Chatel,* and Sabine Valange*

Abstract

The heterogeneous selective oxidation of vanillyl alcohol into vanillin was investigated on new grounds under eco-friendly conditions in the presence of hydrogen peroxide as an oxidant and water as solvent, coupled with low frequency ultrasonic irradiation. The sono-Fenton-like-assisted vanillyl alcohol oxidation was performed with a high-surface area nanostructured spinel cobalt oxide catalyst exhibiting small crystallites size. The catalytic reaction was also carried out under conventional heating conditions for comparison purposes. The influence of the reaction parameters, namely catalyst loading and hydrogen peroxide concentration was studied with the aim of determining the optimum yield and selectivity to the desired vanillin product. The chemical effects of ultrasound (ability to generate hydroxyl radicals) along with increased mass transfer appeared to be key prerequisites for enhancing the efficiency of the process, while decreasing the overall energy consumption.

 Available on the website of Ultrasonics Sonochemistry

Congrats to Ronan for his work (Brazil CAPES funding).

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Our new article in Green Chemistry!

Synthesis of maleic and fumaric acids from furfural in the presence of betaine hydrochloride and hydrogen peroxide

Nahla Araji, Desix Madjinza, Gregory Chatel,* Audrey H. Moores, Francois Jerome and Karine De Oliveira Vigier*

Abstract

Here we report the successfully valorization of furfural into maleic acid (MA) and fumaric acid (FA) with a total yield above 90% using an aqueous solution of betaine hydrochloride (BHC) in the presence of hydrogen peroxyde. BHC can be recyclable at least 4 cycles and it can be used to directly convert xylose to MA and FA. 

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Available on the website of Green Chemistry

Congrats to Nahla for her work, in the framework of our collaboration with Moores’group at McGill University, Canada.

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Special Issue in L’Actualité Chimique

It was a pleasure to coordinate the September Issue of L’Actualité Chimique (journal of the French Chemical Society, in French) dedicated to sonochemistry and its applications.

Read my foreword: « Sonochemistry, or how ultrasound make vibrate chemistry! »

Read the other articles online:
– What is sonochemistry?
– Jean-Louis Luche, pioneer of sonochemistry
– Activation of molecules, particles and surfaces by acoustic cavitation
– Organic sonochemistry: in green chemistry, it sparkles!
– Green sono extraction of natural products
– Sonoelectrochemistry: a both investigative and acceleration process tool
– Parametric study for the design of ultrasonic processes: application to sludge pretreatment
– How to use ultrasound in the laboratory? Examples and handling
– Interview of Pascal Pierce, the President of SinapTec

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Thank you to all the authors that accepted to write an article in French, in this Special Issue. A special thank you for Prof. Cravotto, for his contribution as President of the European Society of Sonochemistry (ESS).

 

New position at the Université Savoie Mont Blanc

With my experiences as postdoc in USA and as Assistant Professor at the Université de Poitiers, I have joined, this September, the Université Savoie Mont Blanc (USMB) and the Laboratoire de Chimie Moléculaire et Environnement (LCME) after a mutation for family reasons.

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Université Savoie Mont Blanc (USMB) :

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https://vimeo.com/122331011

With 14 000 students and 19 research laboratories, the Université Savoie Mont Blanc is an establishment on a human scale distributed on three university campus sites at Annecy-le-Vieux, Le Bourget-du-Lac and Jacob-Bellecombette, and offering attractive living and studying conditions, at the heart of an exceptional environment, between lakes and mountains.

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 Laboratoire de Chimie Moléculaire et Environnement (LCME) :

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Among the Sciences and Montain Faculty, the LCME is organized around 14 researchers and professors, 5 administrative and technical staff and about 10 PhD students. The LCME was created in 1984. After 1995, it progressed rapidly in the field of sonochemistry applications. Over the 15 past years, the laboratory’s activity has broadened to include environmental chemistry for studying sources and dynamics of organic pollutants in mountain environments. The LCME’s research work is focused on 2 research teams:

–  GREEN CHEMISTRY (that I joined)

–  ENVIRONMENTAL CHEMISTRY

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