Laboratoire de réactivité de surface

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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⟩

  • Thèse

Dégradation chimique et mécanique de l'alumine en phase aqueuse : mécanisme et inhibition en conditions ambiantes et hydrothermales, Chemical and mechanical degradation of alumina in aqueous phase : mechanism and inhibition in ambient and hydrothermal conditions

Jane Abi Aad

L'alumine, utilisée comme support de catalyseurs pour la réaction de Fischer-Tropsch ou pour la conversion de la biomasse, se transforme partiellement en présence d'eau en phases (oxy)hydroxydes à l'origine de fines qui posent problème dans la mise en ¿uvre de procédés en réacteurs…, Alumina, used as a catalyst support for the Fischer-Tropsch reaction or for the conversion of biomass, partially transforms in presence of water into (oxy)hydroxides phases. The formation of the latter leads to the production of fine particles that may cause plugging problems in the implementation…

Chimie-Physique [physics.chem-ph]. Université Pierre et Marie Curie - Paris VI, 2016. Français. ⟨NNT : 2016PA066642⟩. ⟨tel-01913067⟩

  • Article dans une revue

EPR Characterization and Reactivity of Surface-Localized Inorganic Radicals and Radical Ions

Mario Chiesa, Elio Giamello, Michel Che

A review. The role of surface inorg. radicals and radical ions formed at the interface between a solid and a gas phase was discussed. The formation of such species is relevant to field such as electrochem., heterogeneous catalysts, photocatalysis and corrosion. The characterization of these…

Chemical Reviews, 2010, 110 (3), pp.1320-1347. ⟨10.1021/cr800366v⟩. ⟨hal-00604710⟩

  • 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

Catalytic Pyrolysis of Plastics over Maghemite-Impregnated Mesocellular Foam using Induction Heating

Luing Wong Syie, Sabino Armenise, B. Nyakuma Bemgba, Soon Ng Pang, Hau Lee Chia, Anna Bogush, Franck Launay, Evgeny Rebrov, Marta Munoz

Pyrolysis is a key technology that converts unrecyclable end-of-life plastics into value-added products. Nevertheless, the high energy consumption during plastic pyrolysis limits the economic feasibility of a scaled-up process. Development of an energy-efficient plastic pyrolysis process is…

Chemical Engineering Transactions, 2022, 97, pp.25. ⟨10.3303/CET2297005⟩. ⟨hal-04030193⟩

  • Communication dans un congrès

Structural and electrochemical properties of Y(Ni,Mn)3 compounds in protic ionic liquid

J Monnier, G Fedlouk, J Chan, E Kurchavova, M Turmine, V Vivier, L. Laversenne, M Mateos, F Cuevas, J Zhang

The achievable voltage of an alkaline battery is limited by the narrow electrochemical stability window of water and its service life is constrained by corrosion issues related to highly concentrated alkaline solutions. An alternative to aqueous media is the use of ionic liquid (IL)-based…

MH2024, May 2024, Saint-Malo, France. ⟨hal-04959488⟩

  • Article dans une revue

Emergence of Order in Origin-of-Life Scenarios on Mineral Surfaces: Polyglycine Chains on Silica

Ola El Samrout, Marco Fabbiani, Gloria Berlier, Jean-François Lambert, Gianmario Martra

The polymerization of amino acids (AAs) to peptides on oxide surfaces has attracted interest owing to its high importance in biotechnology, prebiotic chemistry, and origin of life theories. However, its mechanism is still poorly understood. We tried to elucidate the reactivity of glycine (Gly) from…

Langmuir, 2022, 38 (50), pp.15516-15525. ⟨10.1021/acs.langmuir.2c02106⟩. ⟨hal-04025462⟩

  • Article dans une revue

Boronic species as promising inhibitors of the Staphylococcus aureus NorA efflux pump: Study of 6-substituted pyridine-3-boronic acid derivatives

Fanny Fontaine, Arnaud Héquet, Anne-Sophie Voisin-Chiret, Alexandre Bouillon, Aurélien Lesnard, Thierry Cresteil, Claude Jolivalt, Sylvain Rault

In response to the extensive use of antibiotics, bacteria have evolved numerous mechanisms of defense against antimicrobial agents. Among them, extrusion of the antimicrobial agents outside the bacterial cell through efflux pumps is a major cause of concern. At first limited to one or few…

European Journal of Medicinal Chemistry, 2015, 95, pp.185-198. ⟨10.1016/j.ejmech.2015.02.056⟩. ⟨hal-01170424⟩

  • Article dans une revue

What Do Tantalum Framework Sites Look Like in Zeolites? A Combined Theoretical and Experimental Investigation

Frederik Tielens, Tetsuya Shishido, Stanislaw Dzwigaj

Ab initio periodic DFT calculations on the structural and energy properties of different model tantalum framework sites in tantalum-substituted socialite cavities are presented and related to experimental FTIR measurements on Ta-containing SiBEA zeolites. The tantalum framework sites are…

Journal of Physical Chemistry C, 2010, 114 (21), pp.9923-9930. ⟨10.1021/jp102181m⟩. ⟨hal-00604808⟩

  • Article dans une revue

Effect of Coverage and Defects on the Adsorption of Propanethiol on Au(111) Surface: A Theoretical Study

Noelia B. Luque, Elizabeth Santos, Juan Andres, Frederik Tielens

Periodic density functional calculations have been carried out to investigate both the thiol adsorption on Au(111) surface and the reaction mechanism for the formation of the self-assembled monolayers, taking propanethiol as a representative example. The effect of coverage and surface defects (…

Langmuir, 2011, 27, pp.14514-14521. ⟨10.1021/la202861s⟩. ⟨hal-00670100⟩