Experience

Medevise

• France
• Medical Equipment Manufacturing
• 1 - 100 Employee

• Regulatory & Clinical Project manager

  • Feb 2023 - Present



Groupe de Recherches sur l'Energétique des Milieux Ionisés (GREMI / CNRS / UOrléans)

• France
• Research Services
• 1 - 100 Employee

• Postdoctoral Researcher

  • Jan 2021 - May 2022

  Dihydrogen is a clean fuel which has attracted significant attention in different domains, including electricity generation via its conversion in fuel cells. The hydrothermal route to produce hydrogen from aluminium nanopowder was studied few years ago. It was proved that Al nanoparticles exhibit high reactivity. Yet, the manipulation of nanoparticles possesses potential harmful effects on human health and environment. Therefore, we synthesized nanostructured porous Al thin films, which are supposed to exhibit a high specific surface and thus, an enhanced reactivity with water in hydrogen production. These films wer deposited by DC magnetron sputtering using different Ar/He gas mixtures. The nature and energy distribution function of sputtered and backscattered atoms from the target were analyzed by performing SRIM simulations. Moreover, the mechanisms leading to He insertion and the formation of He bubbles or porous structure were investigated by molecular dynamics simulations. The obtained results revealed that the variation of He to Ar flow rate ratio influences remarkably the plasma composition as well as the composition and the morphology of the deposited films. Keywords: nanostructured thin films, porosity, aluminum, PVD, helium‑argon mixture plasma, physico-chemical and microstructural analysis, ion beam analysis, hydrothermal hydrogen production. Show less



Institut de Chimie de Clermont-Ferrand

• France

• PHD Researcher

  • Oct 2017 - Oct 2020

  Photocatalysis emerged as an inexpensive and environment-friendly process for the degradation of dye pollutants, the photocatalytic reduction of CO2, and water splitting. During my PhD, I synthesized novel heterojunction photocatalysts of high activity and stability by the one-pot synthesis, reactive magnetron sputtering technique. We have chosen bismuth-based materials, which have recently emerged as promising new candidates for UV and visible light-responsive photocatalysts. Bismuth oxide and bismuth oxyfluoride films were deposited by sputtering a bismuth target in Ar/O2 and Ar/O2/CF4 atmospheres, respectively. The different plasmas were investigated by optical emission spectroscopy. We focused our study on Bi metal/Bi2O3 and Bi metal/BiO0.5F2 heterojunctions. The controlled Bi metal content leads to better charge separation and so an improved photocatalytic performance in the photodegradation of methyl orange dye and the photoconversion of CO2. Moreover, to increase the material's specific surface, spherical nanoparticles with a diameter < 20 nm were obtained by reactive sputtering onto [BMIM][NTf2] ionic liquid. The nanoparticles' concentration depends on the process parameters such as the power and the sputtering time, whereas their nature was varied by controlling the reactive gas flow rates. Keywords: Thin films, nanoparticles, semiconductors, heterojunctions, metals, oxides, oxyfluorides, bismuth-based materials, reactive magnetron sputtering, plasma, ionic liquid, physico-chemical and microstructural analysis, optical, electrical and photocatalytic properties. Show less