• Article dans une revue

Improved Experimental Setup to Reach a Broad Frequency Domain in Local Electrochemical Impedance Spectroscopy Measurements

Maurilio Pereira Gomes, Samantha Michelle Gateman, Isolda Costa, Oumaïma Gharbi, Kieu Ngo, Jesualdo Luiz Rossi, Mireille Turmine, Vincent Vivier

We report a new experimental setup enabling local electrochemical impedance spectroscopy (LEIS) measurements over a wide frequency range, including the low frequency domain. First, an improved signal treatment was performed using a potential shifter to minimize the DC component of the measured…

Measurement - Journal of the International Measurement Confederation (IMEKO), 2022, 200, pp.111504. ⟨10.1016/j.measurement.2022.111504⟩. ⟨hal-03719357⟩

• Article dans une revue

Amine degradation in CO₂ capture. 3. New degradation products of MEA in liquid phase: Amides and nitrogenous heterocycles

C. Gouedard, A. Rey, V. Cuzuel, J. Brunet, B. Delfort, D. Picq, J. Dugay, J. Vial, Valérie Pichon, Franck Launay, L. Assam, J. Ponthus, P. -L. Carrette

To reduce greenhouse gas emissions from fossil fuel power plants, post combustion CO2 capture with amine-based solvent is the most mature technology. Ethanolamine (MEA), the benchmark amine, is the most studied amine but some degradation products are still unknown and for an environmental…

• Article dans une revue

Decoding anionic organization of hydroxide-fluorides in a diaspore-type network

Helies Hyrondelle, Matthew Suchomel, Vincent Rodriguez, Étienne Durand, Yannick Millot, Mathieu Duttine, Alain Demourgues

The diaspore-type crystalline structure is historically well-known in mineralogy, but it has also been widely studied for various applications in the field of catalysis, electrocatalysis, and batteries. However, once two anions of similar ionic size but different electronegativity, such as F– and…

Inorganic Chemistry, 2025, 64 (4), pp.1677-1689. ⟨10.1021/acs.inorgchem.4c03794⟩. ⟨hal-04939898⟩

• Article dans une revue

Gold/Polyoxometalate Core/Shell Nanoparticles for Combined Chemotherapy–Photothermal Cancer Therapy

Somia Tomane, Claire Wilhelm, Souhir Boujday, Alexandre Fromain, Antoine Miche, Flavien Bourdreux, Anne Dolbecq, Pierre Mialane, Anne Vallée

We designed monodisperse and perfectly shaped core/shell AuNP@Mo4Zol2Mn nanohybrids consisting of gold nanoparticles (AuNPs) functionalized by an antitumoral polyoxometalate (POM) incorporating the biologically active zoledronate ligand. After incubation, the nanoparticles were readily confined in…

ACS Applied Nano Materials, 2021, 4 (3), pp.2339-2344. ⟨10.1021/acsanm.0c03187⟩. ⟨hal-03214106⟩

• Article dans une revue

Selective uptake of alkaline earth metals by cyanobacteria forming intracellular carbonates

Nithavong Cam, Karim Benzerara, Thomas Georgelin, Maguy Jaber, Jean-Francois Lambert, Melanie Poinsot, Feriel Skouri-Panet, Laure Cordier

The uptakes of Ca, Sr and Ba by two cyanobacterial strains, Cyanothece sp. PCC7425 and Gloeomargarita lithophora, both forming intracellular carbonates, were investigated in laboratory cultures. In the culture medium BG 11 amended with 250 μM of Ca and 50 or 250 μM of Sr and Ba, G. lithophora…

Environmental Science and Technology, 2016, 50 (21), pp.11654-11662. ⟨10.1021/acs.est.6b02872⟩. ⟨hal-01383264⟩

• Article dans une revue

Ordered mesoporous Fe-Al2O3 based-catalysts synthesized via a direct "one-pot" method for the dry reforming of a model biogas mixture

Karam Jabbour, Ali Saad, Lena Inaty, Anne Davidson, Pascale Massiani, Nissrine El Hassan

International Journal of Hydrogen Energy, 2019, 44 (29), pp.14889-14907. ⟨10.1016/j.ijhydene.2019.04.110⟩. ⟨hal-02414764⟩

• Article dans une revue

Plasmonic Ru/hydrogen molybdenum bronzes with tunable oxygen vacancies for light-driven reduction of p -nitrophenol

Haibo Yin, Yasutaka Kuwahara, Kohsuke Mori, Michel Che, Hiromi Yamashita

Plasmonic Ru/H x MoO 3−y hybrids enable significant plasmon-enhanced catalysis for reduction of p -nitrophenol under visible light irradiation.

Journal of Materials Chemistry A, 2019, 7 (8), pp.3783-3789. ⟨10.1039/C8TA11604K⟩. ⟨hal-04022363⟩

• 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⟩

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Role of solute-solvent hydrogen bonds on the ground state and the excited state proton transfer in 3-hydroxyflavone. A systematic spectrophotometry study

Simone Lazzaroni, Daniele Dondi, Alberto Mezzetti, Stefano Protti

Photochemical & Photobiological Sciences , 2018, 17 (7), pp.923-933. ⟨10.1039/C8PP00053K⟩. ⟨hal-04020487⟩