A5032377683- Supercapacitor Materials and Fabrication
- Mesoporous Materials and Catalysis
- Electrochemical sensors and biosensors
- Advancements in Battery Materials
- Catalysis for Biomass Conversion
- Advanced Battery Materials and Technologies
- Catalysis and Hydrodesulfurization Studies
- Electrochemical Analysis and Applications
- Atmospheric chemistry and aerosols
- Catalytic Processes in Materials Science
- Atmospheric Ozone and Climate
- Pickering emulsions and particle stabilization
- Enzyme Catalysis and Immobilization
- Graphene research and applications
- Conducting polymers and applications
- Advanced Cellulose Research Studies
- Electrocatalysts for Energy Conversion
- Transition Metal Oxide Nanomaterials
- Advanced battery technologies research
- Ionic liquids properties and applications
- Polyoxometalates: Synthesis and Applications
- Air Quality Monitoring and Forecasting
- Lignin and Wood Chemistry
- Carbon Dioxide Capture Technologies
- Microbial Fuel Cells and Bioremediation
École Nationale Supérieure de Chimie de Montpellier
2015-2024
Centre National de la Recherche Scientifique
2015-2024
Université de Montpellier
2014-2024
Sorbonne Université
2008-2024
Université Sorbonne Paris Nord
2024
Institut Charles Gerhardt Montpellier
2008-2023
Institut de Chimie
2016-2023
Aix-Marseille Université
2020-2023
Laboratoire de Chimie Bactérienne
2023
Hyogo Prefectural Institute of Environmental Sciences
2022
Abstract Acid pretreatment of lignocellulosic biomass, required for bioethanol production, generates large amounts by‐products, such as lignin and hydrolyzed hemicellulose fractions, which have found so far very limited applications. In this work, we demonstrate how the recovered hydrolysis products can be effectively utilized a precursor synthesis functional carbon materials through hydrothermal carbonization (HTC). The morphology chemical structure synthesized HTC carbons are thoroughly...
Carbon hollow spheres were produced using a sustainable approach, i.e. hydrothermal carbonization, monosaccharides as carbon precursors and silica nanoparticles hard-templates. Hydrothermal carbonization is an eco-efficient cost-effective route to synthesize nanostructured carbonaceous materials from abundant biomass-derived molecules. After further thermal treatment under inert atmosphere removal of the silica-based core by chemical etching, porous depicting 5-8 nm thin shells obtained....
A new sustainable approach based on the hydrothermal carbonization of biomass-derivatives is reported for synthesis nitrogen-doped carbon-based aerogels. The catalyst-free treatment both carbohydrate-based derivatives, i.e. glucose, D-glucosamine and/or N-acetyl-D-glucosamine, and phenolic compounds, phloroglucinol cyanuric acid, led to highly porous monolithic gels. After pyrolysis under an inert atmosphere, conductive N-doped carbon aerogels were obtained, displaying nitrogen-doping levels...
Porous carbon foams were prepared by pyrolysis of phenolic resin from a dual-template approach using silica monoliths as hard templates and triblock copolymers soft templating agents. Macroporosity 50–80% arose the Si(HIPE) template (the acronym "HIPE" refers to high internal phase emulsion process), while generated micro- or mesoporosity, according operating procedure. The final materials exhibited Brunauer–Emmett–Teller specific surface area 600–900 m2·g–1. Their performances electrodes...
Biorefinery aims at the conversion of biomass and renewable feedstocks into fuels platform chemicals, in analogy to conventional oil refinery. In past years, scientific community has defined a number primary building blocks that can be obtained by direct decomposition. However, large potential this "renewable chemical space" contribute generation value added bio-active compounds materials still remains unexplored. general, derived feature diverse range functionalities. order integrated...
Silica monoliths with hierarchical porosity (macro-/mesoporous), prepared by a combination of phase separation (spinodal decomposition) and sol–gel process, have demonstrated remarkable potential as supports for catalysts adsorbents improved efficiency productivity number applications. This is due to perfect homogeneous interconnected porous networks enabling an exceptional mass transfer fine control contact times. been functionalized important variety moities techniques, such grafting...
Abstract By using Si(HIPEs) as hard, exotemplating matrices, interconnected macro‐/microporous carbon monolith‐type materials with a surface area of around 600 m 2 g −1 are synthesized and shaped. The carbonaceous foams exhibit conductivity 20 S cm , addressed excellent mechanical properties (Young's modulus 0.2 GPa toughness 13 J when the core is optimized). above‐mentioned specificities, combined fact that external shape size can be easily designed on demand, primary importance for...
In the present study we have shown that carbonaceous micro/macrocellular foams can be used for efficient and stable non-specific enzyme entrapment. this context, Bilirubin Oxidase adsorbed into porous electrode is able to reduce O2 water electrons are transferred directly from without need of a redox mediator. The reduction current several days under continuous operation therefore consider very promising candidates construction 3-dimensional biofuel cell cathodes. Mediator free, preparation...
A facile and eco-friendly method was developed to prepare a microporous CuO@Ag0 core-shell with high catalytic antibacterial activities. Scanning transmission electron microscopy revealed preponderance of nearly spherical 50 nm particles slight structure compaction. Comparison the hysteresis loops confirmed compaction after AgNP incorporation, significant decrease specific surface area from 55.31 m2 g-1 for CuO 8.03 noticed. kinetic study 4-nitrophenol (4-NP) reduction into 4-aminophenol...
The development of rechargeable Mg/S batteries is driven by the design reliable electrolytes. To date, they seem not suitable for industrial transfer as are either corrosive or necessitate a complex formulation. innovative strategy reported here, which replaces magnesium Mg alloys at negative electrode, enables employing facile electrolyte formulations well proposes an easier electrode-shaping process. As proof-of-concept, Mg3Bi2/S cells were evaluated with simple Mg(TFSI)2/DME electrolyte....
Thanks to successful cohabitation between graphene and ionic liquids (ILs), a large avenue can be opened for the design of functional nanomaterials in broad range applications, including catalysis, gas separation electrochemistry.
Microporous–macroporous carbononaceous monolith-type materials, prepared through a hard template method using silica as exo-templating matrices, have been impregnated with an etheric solution of LiBH4 to prepare LiBH4@carbon samples. It has shown that the amorphous character is largely favoured when developing carbon microporosity (pores smaller than 2 nm) and that, consequence, dehydrogenation strongly enhanced at low temperatures. The onset temperature can be decreased 200 °C hydrogen...
A novel class of monolith-type boron nitride hierarchical foams has been prepared through an integrative chemistry-based synthetic path. These materials contain interconnected pores in the nanometre to micrometre range with high porosity (∼75 vol%), a specific surface area up 300 m2 g−1 and resistance toward mechanical stress making them suitable for innovative applications.
Integrative chemistry-based rational design has been used to synthesize the first lipase [C-CRl]@Glymo-Si(HIPE) and [C-TAl]@Glymo-Si(HIPE) hybrid macrocellular biocatalysts, where immobilization of crude enzymes is optimized, while circumventing reactants' low kinetic diffusion, by use silica macroporous hosts. As a direct consequence, these new biocatalysts display unprecedented cycling catalysis performance, as demonstrated syntheses butyloleate ester (used biodiesel lubricant), hydrolysis...
Three-dimensional carbonaceous electrodes with interconnected hierarchical porosity are prepared using Si(HIPE) exotemplating matrices, and modified glucose oxidase Os polymer. The electrooxidation current is 13-fold bigger on the porous electrode than glassy carbon for same enzyme loading. Therefore they proposed devices needing high output, such as biofuel cells.
The one-pot synthesis and use of monolithic biohybrid foams in a continuous flow device reported here presents the advantages covalent stabilization enzymes, together with low steric hindrance between proteins substrates, optimized mass transport due to interconnected macroporous network simplicity regard column situ synthetic path. Those features, when applied transesterification (biodiesel production) viaenzyme catalysis, provide among top enzymatic activities displayed by catalysts...
We show that we can select magnetically steerable nanopropellers from a set of carbon coated aggregates magnetic nanoparticles using weak homogeneous rotating fields. The coating be functionalized, enabling wide range applications. Despite their arbitrary shape, all nanostructures propel parallel to the vector rotation field. use simple theoretical model find experimental conditions which are predominantly smaller than previously published ones.
Abstract Carbon‐based monoliths have been designed using a simple synthetic pathway based on high internal phase emulsion (HIPE) as soft template to confine the polymerization and hydrothermal carbonization of saccharide derivatives (furfural) phenolic compounds (phloroglucinol). Monosaccharides can be isolated from cellulosic fraction lignocellulosic biomass phloroglucinol extracted bark fruit trees; however, this approach constitutes an interesting sustainable route. The macroscopic...
Hierarchically porous zirconium phosphate monoliths were synthesized and fabricated into a continuous flow setup for toxic metal ion adsorption.
Abstract. The west coast of southern Africa is a region particular climate interest and crossroad for aerosols different origins as well fog occurrences. In this study, we present comparison between the solubility trace metals in pairs total suspended particulate (TSP) water samples collected Henties Bay, Namibia, during AErosols, Radiation CLOuds (AEROCLO-sA) field campaign September 2017. From inductively coupled plasma mass spectrometry measurements, found that Al, Fe, Ni, Cu, Cr have...