• Article dans une revue

Direct Observation of the Surface Topography at High Temperature with SEM

Renaud Podor, X. F Le Goff, Joseph Lautru, H.P. Brau, Mathias Barreau, Xavier Carrier, Jerôme Mendonça, Dorian Nogues, Antoine Candeias

High-temperature scanning electron microscopy allows the direct study of the temperature behavior of materials. Using a newly developed heating stage, tilted images series were recorded at high temperature and 3D images of the sample surface were reconstructed. By combining 3D images recorded at…

Microscopy and Microanalysis, 2020, 26 (3), pp.397-402. ⟨10.1017/S1431927620001348⟩. ⟨hal-03003458⟩

• Article dans une revue

Preparation of niobium-based oxygen carriers by polyol-mediated process and application to chemical-looping reforming

Pedro Henrique Lopes Nunes Abreu dos Santos, Sophie Nowak, Stéphanie Lau-Truong, Juliette Blanchard, Patricia Beaunier, José Augusto Jorge Rodrigues, Roberta Brayner

New niobium-based oxygen carriers were prepared adopting polyol-mediated process. Four different polyols were used (diethylene glycol, triethylene glycol, tetraethylene glycol, and 1,2-propanediol) and four different quantities of water (0 mL, 1 mL, 10 mL, 30 mL, with a total volume of 80 mL of…

Journal of Nanoparticle Research, 2019, 21 (5), ⟨10.1007/s11051-019-4528-z⟩. ⟨hal-02375304⟩

• Article dans une revue

One Step up the Ladder of Prebiotic Complexity: Formation of Nonrandom Linear Polypeptides from Binary Systems of Amino Acids on Silica

Yuriy Sakhno, Alice Battistella, Alberto Mezzetti, Maguy Jaber, Thomas Georgelin, Laurent Michot, Jean-François Lambert

Evidence for the formation of linear oligopeptides with nonrandom sequences from mixtures of amino acids coadsorbed on silica and submitted to a simple thermal activation is presented. The amino acid couples (glutamic acid+leucine) and (aspartic acid+valine) were deposited on a fumed silica and…

Chemistry - A European Journal, 2019, 25 (5), pp.1275-1285. ⟨10.1002/chem.201803845⟩. ⟨hal-02067461⟩

• Article dans une revue

Giant Exchange-Bias in Polyol-Made CoFe2O4-CoO Core-Shell Like Nanoparticles

Nancy Flores-Martinez, Giulia Franceschin, Thomas Gaudisson, Patricia Beaunier, Nader Yaacoub, Jean-Marc Greneche, Raul Valenzuela, Souad Ammar

Cobalt ferrite ferrimagnetic nanoparticles (NPs) are prepared and used in this work as seeds to grow a thin antiferromagnetic poly- and nanocrystalline CoO shell. The major purpose is to study systematically the characteristics of the as-produced powders, making emphasis on their internal…

Particle & Particle Systems Characterization, 2018, 35 (11), pp.1800290. ⟨10.1002/ppsc.201800290⟩. ⟨hal-02114586⟩

• Article dans une revue

Speciation of chromium on a straw lignin: adsorption isotherm, EPR, and XAS studies

Karine Flogeac, Emmanuel Guillon, E. Marceau, Michel Aplincourt

New Journal of Chemistry, 2003, 27 (4), pp.714-720. ⟨10.1039/b211411a⟩. ⟨hal-03032210⟩

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Proteins adsorption on clay minerals, in Surface and Interface

Maguy Jabert, Jean-Francois Lambert, Sebastien Balme

Elsevier, 2018. ⟨hal-02069143⟩

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Electroactive molecular layers produced by reduction of an aryldiazonium salt scrutinized by Tip Enhanced Raman Spectroscopy

Thomas Touzalin, Jessem Landoulsi, Laure Fillaud, Ivan T Lucas, Emmanuel Maisonhaute

Surface modification methodologies are continuously refined, which in parallel necessitates accurate analytical methods to probe their chemical composition at the nanoscale. We describe here our electrochemical and Tip Enhanced Raman Spectroscopy results on surfaces modified through reduction of an…

Optics Communications, 2025, pp.132034. ⟨10.1016/j.optcom.2025.132034⟩. ⟨hal-05088386⟩

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Phosphate Boosts Nonhydroxyl Radical Species Production upon Air Oxidation of Magnetite and Iron Sulfides at Neutral pH

Guillaume Morin, Frédéric Averseng, Xavier Carrier, Pierre Le Pape, Yishan Du, Yusheng Honge, Elora Bourbon, Giuseppe Sportelli, Tiago A da Silva, Alberto Mezzetti, Camille Baya, Thierry Allard, Jessica Brest, Maryse Rouelle

Heterogeneous Fenton-like reactions using O2 as sole oxidant are gaining interest for designing organic contaminant degradation in soils and groundwaters, since they may provide alternatives to current processes involving strong oxidants. Indeed, several Fe(II)-bearing oxide and sulfide mineral…

Journal of Physical Chemistry C, 2023, 127 (20), pp.9650-9662. ⟨10.1021/acs.jpcc.3c02236⟩. ⟨hal-04248112⟩

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Accessibility of Co3O4 nanoparticles patterned in SBA-15

Irène Lopes, Nissrine El Hassan, Gilles Wallez, Cyril Thomas, Anne Davidson

Calibrated crystalline Co3O4 nanoparticles with a narrow size distribution were synthesized inside the pores of SBA-15 silicas and studied by HR-TEM, XRD and Raman spectroscopy. Preferential orientation and size-related structural modifications are revealed. The reactivity for CO oxidation and the…

Studies in Surface Science and Catalysis, 2007, 170B, pp.1213-1221. ⟨hal-00181050⟩

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Assessing the Oxidation Behavior of EC:DMC Based Electrolyte on Non- Catalytically Active Surface

Iban Azcarate, Wei Yin, Christophe Méthivier, François Ribot, Christel Laberty-Robert, Alexis Grimaud

The race for developing Li-ion batteries positive electrodes with always greater energy density has recently renewed interest towards understanding the formation of the so-called cathode electrolyte interface (CEI) forming upon cycling at high potential. In this work, we used an approach combining…

Journal of The Electrochemical Society, 2020, 167 (8), pp.080530. ⟨10.1149/1945-7111/ab8f57⟩. ⟨hal-02640318⟩