Patrick Choquet

ORCID: 0000-0001-8696-5812
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About
Contact & Profiles
Research Areas
  • Surface Modification and Superhydrophobicity
  • Metal and Thin Film Mechanics
  • Plasma Applications and Diagnostics
  • Diamond and Carbon-based Materials Research
  • Electrohydrodynamics and Fluid Dynamics
  • Advanced Sensor and Energy Harvesting Materials
  • Advanced Photocatalysis Techniques
  • Plasma Diagnostics and Applications
  • TiO2 Photocatalysis and Solar Cells
  • Gas Sensing Nanomaterials and Sensors
  • Semiconductor materials and devices
  • Adhesion, Friction, and Surface Interactions
  • ZnO doping and properties
  • Polymer Surface Interaction Studies
  • Mass Spectrometry Techniques and Applications
  • Catalytic Processes in Materials Science
  • High-Temperature Coating Behaviors
  • Porphyrin and Phthalocyanine Chemistry
  • Nanofabrication and Lithography Techniques
  • Copper Interconnects and Reliability
  • Nanomaterials and Printing Technologies
  • Silicone and Siloxane Chemistry
  • Graphene and Nanomaterials Applications
  • Advanced ceramic materials synthesis
  • Analytical Chemistry and Sensors

Luxembourg Institute of Science and Technology
2015-2024

University of Toronto
2023

John Wiley & Sons (Germany)
2020

National Library of Luxembourg
2012-2014

Instituto de Ciencia de Materiales de Sevilla
2014

ArcelorMittal (Belgium)
2007-2009

ArcelorMittal (Brazil)
2005

Office National d'Études et de Recherches Aérospatiales
1987-1989

The Ohio State University
1989

CEA Valduc
1975

Transparent anti-fogging and self-cleaning coatings are of great interest for many applications, including solar panels, windshields displays or lenses to be used in humid environments. In this paper, we report on the simultaneous synthesis, at atmospheric pressure, anatase TiO2 nanoparticles low-temperature, high-rate deposition TiO2/SiO2 nanocomposite coatings. These exhibit durable super-hydrophilic photocatalytic properties. The strategy followed relies concomitant separated injections...

10.1038/s41598-018-27526-7 article EN cc-by Scientific Reports 2018-06-19

Abstract Molybdenum disulfide coatings have been employed as lubricants for spacecraft since the 1950s but continue to face major engineering challenges including performance in both terrestrial air and deep space vacuum environments service lifetimes on order of decades without maintenance. Co‐deposition MoS 2 with additive compounds provide enhancements some circumstances a lubricant which can perform all space‐facing long remains an ongoing problem. Herein, it is demonstrated...

10.1002/adfm.202110429 article EN Advanced Functional Materials 2022-02-02

A simple and easily up-scalable approach towards the preparation of fluorine-free superhydrophobic surfaces is proposed. Surfaces with water contact angle (WCA) as high 170° hysteresis (CAH) down to 5° are obtained on industrial metallic foils (cold-rolled aluminium electrodeposited copper foils) coated thanks an atmospheric pressure plasma-enhanced chemical vapour deposition method. Nano- micro-scale roughness characterisation surface, performed by atomic force microscopy (AFM) confocal...

10.1039/c4ta00366g article EN Journal of Materials Chemistry A 2014-01-01

Herein, we report the impact of plasma on gold nanoparticles synthesis. We used an atmospheric torch fed with aerosolized tetrachloroauric(iii) acid trihydrate (HAuCl4·3H2O) solution. The investigation showed that using pure ethanol as a solvent for precursor enabled better dispersion compared to water-containing demonstrated here deposition parameters are easy control, presenting influence concentration and time. advantage our method is no capping agent was used. assume creates carbon-based...

10.1039/d3na00007a article EN cc-by Nanoscale Advances 2023-01-01

UV and visible light photocatalytic composite Pt Au-TiO2 coatings have been deposited on silicon glass substrates at low temperature using a hybrid ECWR-PECVD/MS-PVD process. Methylene blue, stearic acid, sulfamethoxazole were used as dye, organic, antibiotic model pollutants, respectively, to demonstrate the efficiency of these nanocomposite for water decontamination or self-cleaning surfaces applications. Raman investigations revealed formation anatase polymorph TiO2 in all synthesized...

10.1021/acsami.7b10904 article EN ACS Applied Materials & Interfaces 2017-10-09

Due to the undeniable industrial advantages of low-temperature atmospheric-pressure plasma processes, such as low cost, temperature, easy implementation, and in-line process capabilities, they have become most promising next-generation candidate system for replacing thermal chemical vapor deposition or wet processes functional coatings. In work detailed in this article, photocatalytic anatase TiO2 thin films were deposited at a temperature on polymer optical fibers using an process. This...

10.1021/acsami.7b01398 article EN ACS Applied Materials & Interfaces 2017-03-31

An innovative approach to produce high-performance and halogen-free flame-retardant thin films at atmospheric pressure is reported. PDMS-based coatings with embedded dopant-rich polyphosphates are elaborated thanks a straightforward approach, using an dielectric barrier discharge (AP-DBD). Deposition conditions have been tailored elaborate various that can match the fire performance requirements. Morphology, chemical composition, structure investigated, results show performances increased by...

10.1021/acsami.6b01819 article EN ACS Applied Materials & Interfaces 2016-04-26

Abstract For the first time, plasma‐assisted inkjet printing of metal‐organic decomposition (MOD) inks is demonstrated to provide an easily up‐scalable method toward deposition highly conductive silver features on paper. Atmospheric plasma sintering methods a fast and effective alternative thermal treatment. This high‐speed, room‐temperature approach ensures immediate conversion MOD after thus overcomes wetting issues typically encountered in porous substrates—a mechanical solution chemical problem.

10.1002/admt.201700326 article EN Advanced Materials Technologies 2018-01-22

Abstract Tuning of the electrical parameter (e.g. power and pulsed discharge) an Atmospheric Pressure Dielectric Barrier Discharge (AP‐DBD) plasma Maleic Anhydride (MA) vinyltrimethoxysilane (VTMOS) allows formation coatings with different combination anhydride/carboxylic group surface density, morphology deposition rate. Pulsing discharge favours incorporation MA a high structural retention, leading to chemical composition similar expected conventional MA‐VTMOS copolymer one. A kinetic...

10.1002/ppap.201100184 article EN Plasma Processes and Polymers 2012-02-17

Abstract Plasma polymerization of 3‐aminopropyl‐triethoxysilane (APTES) in microwave late afterglow was studied. First, sol‐gel polymerized APTES prepared and characterized by ATR–FTIR XPS. The results obtained were used as a model to define the nature nitrogen containing groups plasma polymer layers. It is shown that variation process gas mixture gives possibility tailor chemical composition coatings. We show can be present thin films amines, amides, imines or oximes. analysis phase OES...

10.1002/ppap.201200108 article EN Plasma Processes and Polymers 2012-12-21

Here, we describe a robust process aiming at conferring antibacterial properties on stainless steel through the covalent grafting of nisin, natural antimicrobial peptide, onto functional plasma thin film deposited by an atmospheric pressure dielectric barrier discharge process. The three different steps procedure, namely deposition carboxyl rich layer, surface activation using zero-length crosslinking agent and nisin immobilisation, are reported thoroughly characterised. A correlation...

10.1039/c4tb00503a article EN Journal of Materials Chemistry B 2014-07-02

A simple, efficient and scalable method for the atmospheric pressure plasma initiated chemical vapor deposition of conventional polymer is demonstrated. Ultra‐short square pulse dielectric barrier discharge, which allows high rates even duty cycle as low 0.01%, used to deposit a glycidyl methacrylate (GMA) layer. The structure thin films evidenced by matrix‐assisted laser desorption/ionization high‐resolution mass spectrometry. Polymer molecular weights up 30 000 g mol −1 are found size...

10.1002/ppap.201400094 article EN Plasma Processes and Polymers 2014-08-22

Abstract Atmospheric pressure dielectric barrier discharge deposition of organosilicon thin films on aluminium foils was investigated for different electrical excitations. The plasma reactor fed with nitrogen and hexamethyldisiloxane as film precursor. Scanning electron microscopy observations secondary ion mass spectrometry associated X‐ray photoelectron spectroscopy showed how the modulation excitation can affect morphology chemistry coatings. corrosion behaviour obtained characterised by...

10.1002/ppap.200900094 article EN Plasma Processes and Polymers 2009-12-22

Fluorine-free surfaces with high water contact angle (WCA) and adhesion force to are prepared by the atmospheric pressure dielectric barrier discharge (AP-DBD) of hexamethyldisiloxane on cold rolled aluminum foil. Water droplets, which remained plasma-polymerized (ppHMDSO) surface 155°, do not slide even when is tilted vertically or turned upside down. Scanning electron microscopy, atomic microscopy confocal highlight importance dual-scale roughness ppHMDSO surface. The "sticky" WCA property...

10.1021/am302795v article EN ACS Applied Materials & Interfaces 2013-01-22

The formation of significant NH<sub>4</sub><sup>+</sup>species in saline solutions treated by He/N<sub>2</sub>cold atmospheric plasma is proposed for the first time as main process responsible fast bacterial inactivation of<italic>E. coli</italic>at ambient temperature and physiological pH.

10.1039/c5ra01109d article EN RSC Advances 2015-01-01

An innovative atmospheric pressure chemical vapor deposition method toward the of polymeric layers has been developed. This latter involves use a nanopulsed plasma discharge to initiate free-radical polymerization an allyl monomer containing phosphorus (diethylallylphosphate, DEAP) at pressure. The structure film is evidence by mass spectrometry. method, highly suitable for treatment natural biopolymer substrate, carried out on cotton textile perform efficient and conformal protective coating.

10.1021/am504892q article EN ACS Applied Materials & Interfaces 2014-10-27

In this work, an atmospheric-pressure dielectric barrier discharge process is exploited for the fast deposition of adherent epoxy-rich layers acting as a versatile platform efficient one-step biomolecule immobilization in mild aqueous conditions. Particular attention given to influence plasma parameters on chemical and morphological properties deposited their subsequent exploitation interfacial reactions. As proof-of-concept, two enzymes with drastically different biological properties,...

10.1002/ppap.201400206 article EN Plasma Processes and Polymers 2015-05-15
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