• Article dans une revue

Design of Advanced Functional Materials Using Nanoporous Single‐Site Photocatalysts

Kohsuke Mori, Xufang Qian, Yasutaka Kuwahara, Yu Horiuchi, Takashi Kamegawa, Yixin Zhao, Catherine Louis, Hiromi Yamashita

Nanoporous silica solids can offer opportunities for hosting photocatalytic components such as various tetra-coordinated transition metal ions to form systems referred to as “single-site photocatalysts”. Under UV/visible-light irradiation, they form charge transfer excited states, which exhibit a…

Chemical Record, 2020, 20 (7), pp.660-671. ⟨10.1002/tcr.201900085⟩. ⟨hal-03995418⟩

• Article dans une revue

Orange Carotenoid Protein in Mesoporous Silica: A New System towards the Development of Colorimetric and Fluorescent Sensors for pH and Temperature

Silvia Leccese, Andrea Calcinoni, Adjélé Wilson, Diana Kirilovsky, Donatella Carbonera, Thomas Onfroy, Claude Jolivalt, Alberto Mezzetti

Orange carotenoid protein (OCP) is a photochromic carotenoprotein involved in the photoprotection of cyanobacteria. It is activated by blue-green light to a red form OCPR capable of dissipating the excess of energy of the cyanobacterial photosynthetic light-harvesting systems. Activation to OCPR…

Micromachines, 2023, 14 (10), pp.1871. ⟨10.3390/mi14101871⟩. ⟨hal-04229121⟩

• Poster de conférence

Operando characterization of Fe-N-C pyrolyzed catalysts during hydrogen peroxide reduction by scanning electrochemical microscopy

Carlos M Sánchez-Sánchez, Christian Candia-Onfray, Ricardo Venegas, Lin Zhang, Sophie Juillard, R. Salazar, J.F. Marco, N. Menéndez, J.F. Recio, Vincent Vivier

Journées d' Electrochimie 2022 (JE 2022), Jul 2022, Mons, France. ⟨hal-03992878⟩

• Article dans une revue

Screening Earth Analog Exoplanets on the Basis of a Predicted Nitrogen over Phosphorus Ratio

Hervé Toulhoat

Abstract Since the first discovery in 1995, data for over 5300 exoplanets have been documented in the NASA archive, revealing a vast diversity. Identifying life-enabling analogs of the Earth among this rapidly expanding catalog is of major interest. The stability of liquid water at the planetary…

The Astrophysical Journal, 2023, 958 (2), pp.124. ⟨10.3847/1538-4357/acfc4e⟩. ⟨hal-04314044⟩

• Article dans une revue

A simple thermodynamic approach to predict responses from polymer-coated quartz crystal microbalance sensors exposed to organic vapors.

P. Palmas, J. Klingenfus, A. Vedeau, E. Girard, P. Montméat, L. Hairault, C.M. Pradier, C. Methivier

As of lately, the demand for developing artificial sensors with improved capabilities for the detection of explosives, toxics or drugs has increased. Ideally, sensor devices should provide high sensitivity and give a response that is specific to a given target molecule without being influenced by…

Talanta, 2013, 115, pp.616-623. ⟨10.1016/j.talanta.2013.06.017⟩. ⟨hal-00958092⟩

• Article dans une revue

Calcium phosphate mineralization through homogenous enzymatic catalysis: Investigation of the early stages

E. Colaço, D. Brouri, C. Méthivier, L. Valentin, F. Oudet, K. El Kirat, C. Guibert, J. Landoulsi

Hypothesis : The crystallization of calcium phosphate (CaP) is a ubiquitous process that occurs in several mineralized tissues and involves a variety of biochemical and chemical reactions. This issue has been hitherto continuously studied from supersaturated solutions (chemical procedure), i.e. by…

Journal of Colloid and Interface Science, 2020, 565, pp.43 - 54. ⟨10.1016/j.jcis.2019.12.097⟩. ⟨hal-03489538⟩

• Thèse

The role of alloying elements on the dissolution, passivation and corrosion of High Entropy Alloys, Étude de la réactivité et de la passivation des alliages à haute entropie

Yaojun Hou

High entropy alloys (HEAs), as an emerging class of materials, have garnered significant attention in the field of materials science due to their unique multi-element compositions and exceptional performance characteristics, such as high strength, high hardness, outstanding thermal stability, and…, Les alliages à haute entropie (HEA), en tant que nouvelle classe de matériaux, ont suscité une attention considérable dans le domaine de la science des matériaux en raison de leurs compositions multi-élémentaires uniques et de leurs caractéristiques de performance exceptionnelles, telles qu'…

Analytical chemistry. Sorbonne Université, 2024. English. ⟨NNT : 2024SORUS490⟩. ⟨tel-05354637⟩

• Article dans une revue

The structural and the photoelectrochemical properties of ZnO–ZnS/ITO 1D hetero-junctions prepared by tandem electrodeposition and surface sulfidation: on the material processing limits

A. Brayek, S. Chaguetmi, M. Ghoul, I. Ben Assaker, R. Chtourou, P. Decorse, P. Beaunier, S. Nowak, F. Mammeri, S. Ammar

ZnO–ZnS 1D hetero-nanostructures were prepared by an easy and scalable processing route. It consists of ZnO nanorod electrodeposition on ITO substrate and surface sulfidation by ion exchange in an aqueous Na 2 S solution. Increasing the treatment contact time (t c) from 8 to 48 h involves different…

RSC Advances, 2018, 8 (21), pp.11785 - 11798. ⟨10.1039/c8ra00176f⟩. ⟨hal-01748875⟩

• Article dans une revue

Heteropolytungstate-decorated core-shell magnetic nanoparticles: A covalent strategy for polyoxometalate-based hybrid nanomaterials

Ourania Makrygenni, Emilie Secret, Aude Michel, Dalil Brouri, Vincent Dupuis, Anna Proust, Jean-Michel Siaugue, Richard Villanneau

Amino-functionalized core-shell magnetic nanoparticles have been covalently grafted with Polyoxometalates (POMs). These multifunctional nanocomposites have been obtained through the coupling of heteropolytungstate-based hybrids bearing carboxylic acid functions with aminopropyl functions that…

Journal of Colloid and Interface Science, 2018, 514, pp.49-58. ⟨10.1016/j.jcis.2017.12.019⟩. ⟨hal-03511208v2⟩

• Thèse

Photocatalyseurs nanocomposites UCNP@SiO2@ZnO, activés par rayonnement proche infrarouge, pour la dépollution des eaux usées, Nanocomposites photocatalysts UCNP@SiO2@ZnO, active under near-infrared light, for wastewater treatment

David Hu

Les photocatalyseurs tels que l’oxyde de zinc (ZnO) peuvent minéraliser les polluants organiques toxiques et persistants dans les eaux usées. Ils ne sont cependant pas efficients dans les eaux très contaminées, suite à la nécessité d’une activation par une lumière UV qui n’y pénètre que faiblement…, Photocatalysts such as zinc oxide (ZnO) can mineralize toxic and persistent organic pollutants present in wastewaters. Unfortunately, these photocatalysts loose part of their effectiveness because they need to be activated by UV light, which has a limited penetration depth in highly contaminated…

Matériaux. Sorbonne Université, 2021. Français. ⟨NNT : 2021SORUS017⟩. ⟨tel-04063743⟩