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Synthesis and properties of water-soluble graphene quantum dots
LICSEN : ChemistryParis-Saclay Sciences Chimiques: Molécules, Matériaux, Instrumentation et Biosystèmes (2MIB) SaclayGraphene as a constituent of graphite was close to us for almost 500 years. However, it is only in 2005 that A. Geim and K. Novoselov (Nobel Prize in 2010) reported for the first time the obtaining…
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Direct conversion of atmospheric CO2 by homogeneous catalysis
LCMCE : ChemistryParis-Saclay Sciences Chimiques: Molécules, Matériaux, Instrumentation et Biosystèmes (2MIB) SaclayWith the gradual decarbonization of our economy, only a few isolated sources of CO2 emissions, such as cement plants, will remain. However, our long-term dependence on carbon-based products, such as…
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Multimodal approaches using Raman imaging to characterize microplastics and nanoplastics in cells and organisms
LIONS : Radiation-matter interactionsUniversité de Paris Médicament Toxicologie Chimie Imageries (MTCI) SaclayPollution by microplastics presents ecological risks due to their slow degradation, long-range transport and accumulation in organisms. Although numerous studies have reported their presence in…
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High performance graphene for non-metallic contact in perovskite devices
LICSEN : ChemistryParis-Saclay Sciences Chimiques: Molécules, Matériaux, Instrumentation et Biosystèmes (2MIB) SaclayDespite their many positive impacts, PV panels production face threat of sustainability of growth in terms of raw materials, energy, and environment. The PV industry is very dependent on critical…
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Stable tandem perovskite solar cells based on new cross-linked electron transport layers
LICSEN : ChemistryParis-Saclay Sciences Chimiques: Molécules, Matériaux, Instrumentation et Biosystèmes (2MIB) SaclayPerovskite solar cells (PSCs) have become a trending technology in photovoltaic research due to a rapid increase in efficiency in recent years. In 2020, a record efficiency of 25.5% close from…
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Durable radially polatised tubular nanoreactors for catalysis
LIONS : Radiation-matter interactionsParis-Saclay Sciences Chimiques: Molécules, Matériaux, Instrumentation et Biosystèmes (2MIB) SaclayRising energy demand and the need to reduce the use of fossil fuels to limit global warming have created an urgent need for clean energy collection technologies. One interesting solution is to use…
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Hyperpolarised, continuous-mode NMR based on parahydrogen and grafted catalysts
LSDRM : ChemistryParis-Saclay Sciences Chimiques: Molécules, Matériaux, Instrumentation et Biosystèmes (2MIB) SaclayNuclear Nuclear magnetic resonance (NMR) is a robust, non-invasive technique of analysis. It provides valuable information about chemical reactions, which can then be better characterised and…
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Porous materials integrated into devices for glycomic analysis in hospitals.
LEDNA : ChemistryParis-Saclay Sciences Chimiques: Molécules, Matériaux, Instrumentation et Biosystèmes (2MIB) SaclayGlycomics involves identifying oligosaccharides (OS) present in a biological fluid as a source of biomarkers for diagnosing various pathologies (cancers, Alzheimer’s disease, etc.). To study these…
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Custom synthesis of diamond nanoparticles for photocatalytic hydrogen production
LEDNA : Ultra-divided matter, Physical sciences for materialsParis-Saclay Physique et Ingénierie: électrons, photons et sciences du vivant (EOBE) SaclayOur recent results show that nanodiamond can also act as a photocatalyst, enabling the production of hydrogen under solar illumination [1]. Despite its wide band gap, its band structure is adaptable…
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Photocatalytic deoxygenation of fatty esters: towards the production of biosourced alcanes
LCMCESaclayAlkanes are essential molecules in the energy sector (fuels), as well as in specialty chemicals (cosmetics, adhesives, etc.) and fine chemicals. Today, they are mainly derived from non-renewable…
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Nanodiamond-based porous electrodes: towards photoelectrocatalytic production of solar fuels
LEDNA : Physical chemistry and electrochemistryParis-Saclay Sciences Chimiques: Molécules, Matériaux, Instrumentation et Biosystèmes (2MIB) SaclayAmong nanoscale semiconductors, nanodiamonds (ND) have not been really considered yet for photoelectrocatalytic reactions in the energy-related field. This originates from the confusion with ideal…
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Numerical twin for the Flame Spray Pyrolysis process
LEEL : Numerical simulationParis-Saclay Sciences Chimiques: Molécules, Matériaux, Instrumentation et Biosystèmes (2MIB) SaclayOur ability to manufacture metal oxide nanoparticles (NPs) with well-defined composition, morphology and properties is a key to accessing new materials that can have a revolutionary technological…
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Effect of substitution on the ferroelectric and photocatalytic properties of Barium Titanate nanoparticles
LEEL : Ultra-divided matter, Physical sciences for materialsParis-Saclay Sciences Chimiques: Molécules, Matériaux, Instrumentation et Biosystèmes (2MIB) SaclayAs part of the energy transition, the production of hydrogen from solar energy appears to be an extremely promising means of storing and then producing energy. To develop on a large scale, water…
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Development of dense and fluidized granular beds in microfluidic channels for healthcare applications
LIONS : Health and environment technologies, medical devicesParis-Saclay Physique et Ingénierie: électrons, photons et sciences du vivant (EOBE) SaclayThe major public health problem of sepsis requires breakthrough technologies for ultra-fast diagnosis. Dense, fluidized granular beds are ideal systems for liquid-solid or gas-solid exchange…
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Chemical valorization of oxygenated and nitrogenated plastic through the catalytic cleavage of carbone-oxygen (C–O) et carbone-nitrogen (C-N) bonds
LCMCE : ChemistryParis-Saclay Sciences Chimiques: Molécules, Matériaux, Instrumentation et Biosystèmes (2MIB) SaclaySince the 1950s, the use of petroleum-based plastics has created a modern consumerist world based on the use of disposable products. Global production of plastic waste is therefore considerable, and…
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Multiscale metamaterials based on 3D-printed biosourced polymer composites
LIONS : Ultra-divided matter, Physical sciences for materialsParis-Saclay Sciences Chimiques: Molécules, Matériaux, Instrumentation et Biosystèmes (2MIB) SaclayReducing the density of materials is one of the best ways to diminish our energy footprint. One solution is to replace massive materials by microlattices. Among these, random architecture structures…
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In situ Magic Angle spinning NMR analysis of Li-ion batteries
LEEL : Electrochemical energy storage incl. batteries for energy transitionParis-Saclay Sciences Chimiques: Molécules, Matériaux, Instrumentation et Biosystèmes (2MIB) SaclayIn situ solid-state Nuclear Magnetic Resonance (ssNMR) is a valuable characterization tool to decipher the electrochemical phenomena during battery operation. However, the broad signal lineshapes…
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Catalysis using sustainaBle hOllow nanoreacTors wiTh radiaL pErmanent polarization
LIONS : Radiation-matter interactionsParis-Saclay Sciences Chimiques: Molécules, Matériaux, Instrumentation et Biosystèmes (2MIB) SaclayThe combined demands of increasing energy production and the need to reduce fossil fuels to limit global warming have paved the way for an urgent need for clean energy harvesting technologies. One…
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Advanced 3D-printed metallic bipolar plates for PEMFC application
LICSEN : Physical chemistry and electrochemistryParis-Saclay Sciences Chimiques: Molécules, Matériaux, Instrumentation et Biosystèmes (2MIB) SaclayTo meet the increasing energy demand and diversify energy resources, fuel cells emerge as a promising solution. This Ph.D work aims to contribute to the development of Proton Exchange Membrane Fuel…
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Exploring the reactivity of oxide based catalysts by radiolysis
LEDNA : Ultra-divided matter, Physical sciences for materialsParis-Saclay Sciences Chimiques: Molécules, Matériaux, Instrumentation et Biosystèmes (2MIB) SaclayIn the context of the search for processes that are less polluting and more energy-efficient than current processes, it is interesting to produce high-stake molecules such as C2H4 by developing…
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Critical metal enrichment of solid streams from used printed circuit boards by multi-spectral sorting and artificial intelligence
LICSEN : InstrumentationParis-Saclay SaclayIn this project, we propose to valorize the critical metals lost, as they are not currently retrieved, when recycling printed circuit boards. The focus will be on the key step of sorting the…
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Ab initio simulation of catalysts for green chemistry
LSDRM : Physical chemistry and electrochemistryParis-Saclay Sciences Chimiques: Molécules, Matériaux, Instrumentation et Biosystèmes (2MIB) SaclayCatalysis is today at the core of chemical industrial applications. For example, the conversion of nitrile to amide, which is relevant in pharmaceuticals, agrochemicals, synthetic chemistry and…
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In situ and real time characterization of nanomaterials by plasma spectroscopy
LEDNA : Atomic and molecular physicsParis-Saclay Sciences Chimiques: Molécules, Matériaux, Instrumentation et Biosystèmes (2MIB) SaclayThe objective of this Phd is to develop an experimental device to perform in situ and real time elemental analysis of nanoparticles during their synthesis (by laser pyrolysis or flame spray…
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Novel membranes based on 2D nanosheets
LICSEN : ChemistryParis-Saclay Sciences Chimiques: Molécules, Matériaux, Instrumentation et Biosystèmes (2MIB) SaclayThis thesis project aims to exfoliate new nanostructured architectures based on two-dimensional inorganic phases. These nanostructures will be designed for filtration devices and tested using our…
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Hybrid solid electrolytes for “all-solid” batteries: Formulation and multi-scale characterization of ionic transport
LEEL : Physical chemistry and electrochemistryParis-Saclay Sciences Chimiques: Molécules, Matériaux, Instrumentation et Biosystèmes (2MIB) SaclayLithium-ion batteries, widely present in our daily lives, have revolutionized portable applications and are now used in electric vehicles. The development of new generations of batteries for future…
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Nano-object simulations in biological media
LIONS : Biotechnologies,nanobiologyParis-Saclay Sciences Chimiques: Molécules, Matériaux, Instrumentation et Biosystèmes (2MIB) SaclayUnderstanding the non-specific or specific interactions between biomolecules and nanomaterials is key to the development of safe nanomedicines and nanoparticles. Indeed, adsorption of biomolecules…
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Raw earth soil, an age-old material with new emerging uses
LIONS : Ultra-divided matter, Physical sciences for materialsMontpellier Sciences Chimiques Balard (EDSCB) SaclayRaw earth materials, which have found multiple uses for millennia, now offer considerable potential for helping to adapt to the changing climate, thanks to their natural ability to regulate heat and…