• Article dans une revue

In situ observation of atomic redistribution in alloying gold-silver nanorods

Jessi E S van Der Hoeven, Tom a J Welling, Tiago a G da Silva, Jeroen E van den Reijen, Camille La Fontaine, Xavier Carrier, Catherine Louis, Alfons van Blaaderen, Petra E de Jongh

The catalytic performance and optical properties of bimetallic nanoparticles critically depend on the atomic distribution of the two metals in the nanoparticles. However, at elevated temperatures, during light induced heating or during catalysis atomic redistribution can occur. Measuring such metal…

ACS Nano, 2018, 12 (8), pp.8467-8476. ⟨10.1021/acsnano.8b03978⟩. ⟨hal-03157963⟩

• Article dans une revue

On the origin of the optimum loading of Ag on Al2O3 in the C3H6-SCR of NOx

Tesnim Chaieb, Laurent Delannoy, Catherine Louis, Cyril Thomas

Ag/Al2O3 catalysts synthesized by the common impregnation technique with various Ag loadings were characterized by the NOx-Temperature-Programmed Desorption (TPD) method and their catalytic performances were evaluated in the selective catalytic reduction of NOx by propene (C3H6-SCR). It was found…

Applied Catalysis B: Environmental, 2013, 142-143, pp.780-784. ⟨10.1016/j.apcatb.2013.06.010⟩. ⟨hal-00907584⟩

• 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…

• Communication dans un congrès

Green NH3 Synthesis via HydroxyApatite-Supported Ru Catalysts for Sustainable H2 Storage under mild conditions

Sabrina Akrour, Alexandre Vimont, Guylène Costentin, Cyril Thomas

13th International Conference on Environmental Catalysis (ICEC), Jun 2025, Isola delle Femmine, Italy. ⟨hal-05657944⟩

• Article dans une revue

Hydrolysis of Ammonia-Borane over Ni/ZIF-8 Nanocatalyst: High Efficiency, Mechanism, and Controlled Hydrogen Release

Changlong Wang, Jimena Tuninetti, Zhao Wang, Chen Zhang, Roberto Ciganda, Lionel Salmon, Sergio Moya, Jaime Ruiz, Didier Astruc

Non-noble metal nanoparticles are notoriously difficult to prepare and stabilize with appropriate,dispersion, which in ttirn severely limits their catalytic functions. Here, using zeolitic imidazolate framework (ZIF-8) as MOF template, catalytically remarkably- efficient, ligand-free first-row late…

Journal of the American Chemical Society, 2017, 139 (33), pp.11610-11615. ⟨10.1021/jacs.7b06859⟩. ⟨hal-01651999⟩

• 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⟩