• Article dans une revue

Surface orientation dependent interaction of cobalt (II) precursors with alpha-alumina

Céline Chizallet, Christian Schlaup, Emiliano Fonda, Xavier Carrier

The performances of alumina-supported cobalt catalysts strongly depend on Co/alumina interactions, that are poorly understood. In the present work, α-alumina surfaces are used as models of polycrystalline support, to unravel their orientation dependent behavior by GI-EXAFS. The CoII/α-alumina…

Journal of Catalysis, 2021, 394, pp.157-166. ⟨10.1016/j.jcat.2020.10.025⟩. ⟨hal-03176305⟩

• 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⟩

• Thèse

Sustainable catalytic process for the one-pot formation of cyclic carbonates through oxidation of alkenes and CO2 cycloaddition, Procédé catalytique durable pour la formation “one-pot” de carbonates cycliques par oxydation d’alcènes et cycloaddition de CO2

Matthieu Balas

The objective of this project is to develop a comprehensive reaction for the synthesis of styrene carbonate from styrene in the presence of CO2 and a clean oxidant: O2. Salophen-R-M (R = Me2N, Et2N, tBu and M = Mn, Ni and Cr) catalysts were synthesized and their co-catalytic activity for the…, Ce projet a pour objectif la mise au point d’une réaction globale de synthèse de styrène carbonate à partir du styrène en présence de CO2 et d’un oxydant propre : O2. Les catalyseurs Salophen-R-M (R = Me2N, Et2N, tBu et M = Mn, Ni et Cr) ont été synthétisés et leur activité co-catalytique pour la…

Material chemistry. Sorbonne Université, 2021. English. ⟨NNT : 2021SORUS068⟩. ⟨tel-03681667⟩

• 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

Oxygen reduction reaction monitored during corrosion by means of pumped-micropipette delivery/substrate collection (Pumped-MD/SC) mode of scanning electrochemical microscopy

Abdelilah Asserghine, Sophie Juillard, Julie Ducrot, Vincent Vivier, Carlos Sánchez-Sánchez

The key improvement of the corrosion resistance of metals requires understanding and resolving the electrochemical reactions involved at the local scale. Here, we present the use of the pumped-micropipette delivery/substrate collection (Pumped-MD/SC) mode of scanning electrochemical microscopy (…

Electrochimica Acta, 2023, 441, pp.141775. ⟨10.1016/j.electacta.2022.141775⟩. ⟨hal-03934097⟩

• Article dans une revue

Aerobic oxidation of alcohols using ruthenium supported on DD3 kaolin

B. Zadam, D. Obaid, A. Mayoufi, P. Beaunier, F. Launay, F. El Berrichi

Supported ruthenium nanoparticles were prepared through the chemical reduction of aqueous Ru(III) species previously loaded (1 or 5 wt%) onto DD3 kaolin through an ion-exchanged pathway. Resulting nanoporous materials were characterized by XRF, XRD, TEM, EDX, and N2 sorption measurements, and then…

Research on Chemical Intermediates, 2019, 45 (3), pp.1281-1293. ⟨10.1007/s11164-018-3673-9⟩. ⟨hal-04020529⟩

• 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⟩

• Thèse

Approche expérimentale et théorique de l'inhibition de corrosion de surfaces métalliques, Experimental and theoretical approach of corrosion inhibition of metallic surfaces

Pauline Cornette

La corrosion des surfaces d’aluminium et d’alliages aluminium/cuivre, et notamment la corrosion localisée, est un problème majeur dans l’industrie, et l’utilisation d’inhibiteur de corrosion est bien souvent indispensable. Les chromates remplissent parfaitement leurs rôles d’inhibition mais seront…, Corrosion of aluminum and aluminum/copper alloy surfaces, including localized corrosion, is a major problem in the industry, and the use of a corrosion inhibitor is often essential. Chromates perfectly fulfill their role of inhibition but will soon be prohibited because of their toxicities for…

Matériaux. Université de recherche Paris-Sciences-et-Lettres, 2018. Français. ⟨NNT : ⟩. ⟨tel-01903566⟩

• Article dans une revue

Characterization and reactivity of VMgO catalysts prepared by wet impregnation and sol–gel methods

Samira Slyemi, Akila Barama, Juliette Blanchard, Hassiba Messaoudi, Sandra Casale, Christophe Calers

Chemical Engineering Communications, 2018, 205 (9), pp.1288-1298. ⟨10.1080/00986445.2018.1446424⟩. ⟨hal-02375309⟩

• Article dans une revue

EcDBS1R6: A novel cationic antimicrobial peptide derived from a signal peptide sequence

William Porto, Luz Irazazabal, Vincent Humblot, Evan Haney, Suzana Ribeiro, Robert E.W. Hancock, Ali Ladram, Octavio Franco

Biochimica et Biophysica Acta (BBA) - General Subjects, 2020, 1864 (9), pp.129633. ⟨10.1016/j.bbagen.2020.129633⟩. ⟨hal-03012700⟩