• Article dans une revue

Synergistic Effect Between Ca 4 V 4 O 14 and Vanadium‐Substituted Hydroxyapatite in the Oxidative Dehydrogenation of Propane

Sarah Petit, Cyril Thomas, Yannick Millot, Frederic Averseng, Dalil Brouri, Jean‐marc Krafft, Stanislaw Dzwigaj, Gwenaelle Rousse, Christel Laberty‐robert, Guylène Costentin

The present work reports on a new type of V-based catalysts, namely V-substituted hydroxyapatites, and the influence of the synthesis conditions on their catalytic performance in the oxidative dehydrogenation of propane (ODHP) reaction. Vx-substituted hydroxyapatite materials prepared with the…

ChemCatChem, 2021, 13 (18), pp.3995-4009. ⟨10.1002/cctc.202100807⟩. ⟨hal-03349135⟩

• Communication dans un congrès

No particle size effects in the electrochemical conversion of Co2 to formate on Sn electrodes

Carlos M Sánchez-Sánchez, A. Del Castillo, Manuel Alvarez-Guerra, Juliette Blanchard, A. Irabien

Recycling of CO2 emissions by direct electrocatalytic reduction of CO2 has been pointed out as a feasible method for CO2 conversion into useful chemical products and fuels. In particular, formic acid (HCOOH) represents one of the most interesting products obtained, since HCOOH is widely used in…

XXXIX Meeting GE-RSEQ & 3rd E3-MS, Jul 2018, Madrid, Spain. ⟨hal-03977333⟩

• Article dans une revue

Mueller micropolarimeter for color imaging of aluminium metasurfaces

M. Nicolas, I. Soumahoro, L. Zhang, G. Guida, W. Daney de Marcillac, D. Demaille, C. Schwob, S. Boujday, Bruno Gallas

Many anticounterfeiting tags rely on images intricate in different color and/or different polarization states to create optical effects invisible in conventional observation conditions. We build here an imaging micropolarimeter based on the dual rotating compensator system and using the color…

Journal of the Optical Society of America B, 2021, 38 (4), pp.1184. ⟨10.1364/JOSAB.416833⟩. ⟨hal-03178348⟩

• Article dans une revue

Monitoring by in situ neutron diffraction of simultaneous dehydration and Ni2+ mobility in partially exchanged NaY zeolites

Florence Porcher, Jean-Louis Paillaud, Lucia Gaberova, Gilles André, Sandra Casale, Pascale Massiani

Powder neutron diffraction is used to follow structural changes occurring during heat and vacuum assisted dehydration of 3 wt% nickel exchanged NaY. The structures determined from Rietveld refinement confirm the nickel ion displacement from the supercages and sodalite cages towards hexagonal prisms…

Monitoring by in situ neutron diffraction of simultaneous dehydration and Ni2+ mobility in partially exchanged NaY zeolites . New Journal of Chemistry, 2016, 40, pp.4228-4235 ⟨10.1039/c5nj02918j⟩. ⟨hal-01263845⟩

• Article dans une revue

Stability and degradation of PEO₂₀PPO₇₀PEO₂₀ triblock copolymers in mesostructured silica

Brindusa Dragoi, Guillaume Laurent, Sandra Casale, Taissire Benamor, Bénédicte Lebeau, Cédric Boissière, François Ribot, Mohamed Selmane, Patrick Schmidt, David Kreher, Anne Davidson

Organic−inorganic hybrid mesostructured silicas are prepared, without stirring (at pH = 0.0) and with stirring (at pH = 0.6) to obtain isolated and gyroidal-like attached silica grains with incorporated triblock P123 poly (ethylene oxide)-poly (propylene oxide)–poly (ethylene oxide) copolymers.…

• Article dans une revue

Exploring an alternative route for meixnerite synthesis. The impact of the gaseous environment on the reconstruction of the lamellar structure and the catalytic performances

Octavian Dumitru Pavel, Rodica Zăvoianu, Ruxandra Bîrjega, Emilian Angelescu, Guylene Costentin, Michel Che

Applied Clay Science, 2015, 104, pp.59-65. ⟨10.1016/j.clay.2014.11.025⟩. ⟨hal-01120642⟩

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An Experimental and Theoretical Approach to Investigate the Effect of Chain Length on Aminothiol Adsorption and Assembly on Gold

Erin Bedford, Vincent Humblot, Christophe Méthivier, Claire-Marie Pradier, Frank Gu, Frederik Tielens, Souhir Boujday

Despite the numerous studies on the self-assembled monolayers (SAMs) of alkylthiols on gold, the mechanisms involved, especially the nature and influence of the thiol-gold interface are still under debate. In this work the adsorption of aminothiols on Au(111) surfaces has been studied by using…

Chemistry - A European Journal, 2015, 21 (41), pp.14555-14561. ⟨10.1002/chem.201500653⟩. ⟨hal-01275048⟩

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The Role of Manganese in CeNi_1−xMn_xO₃ Nano-Crystalline Perovskites for Dry Reforming of Methane to Produce Syngas

Ouarda Benlounes, Kahina Ikkour, Djamila Sellam, Mourad Halouane, Nora Yahi, Juliette Blanchard, Saremblé Kone Guira

CeNiO3 catalyst and its modification with manganese were investigated for dry Reforming of methane (DRM) reaction. The experiments were performed at 700°C to examine the effect of manganese loading on catalyst activity and stability. A series of ternary perovskite-type oxides CeNi<sub>1−x<…

• Article dans une revue

Hydrothermal Zn–Fe Mixed Oxide Nanocatalysts: Influence of Synthesis Conditions on Physicochemical Properties, Acidity, and Catalytic Activity in the Biginelli Reaction

Samira Slyemi, Juliette Blanchard, Ouzna Kheffache, Hassiba Messaoudi, Sandra Casale, Saremble Guira, Ibtissem Lounas, Meriem Boudjeloud

CeNiO 3 catalyst and its modification with manganese were investigated for dry Reforming of methane reaction. The experiments were performed at 700 °C to examine the effect of manganese loading on catalyst activity and stability. A series of ternary perovskite-type oxides CeNi 1-x Mn x O 3 (x = 0,…

Chemistry Africa, 2026, 9 (1), pp.23. ⟨10.1007/s42250-025-01523-6⟩. ⟨hal-05536826⟩

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Inelastic light scattering by long narrow gold nanocrystals: when size, shape, crystallinity and assembly matter

Hervé Portalès, Nicolas Goubet, Sandra Casale, Xiang Zhen Xu, Mostapha Ariane, Alain Mermet, Jeremie Margueritat, Lucien Saviot

We report the synthesis of long narrow gold nanocrystals and the study of their vibrational dynamics using inelastic light scattering measurements. Rich experimental spectra are obtained for monodomain gold nanorods and pentagonal twinned bipyramids. Their assignment involves diameter-dependent non…

ACS Nano, 2020, 14 (4), pp.4395-4404. ⟨10.1021/acsnano.9b09993⟩. ⟨hal-02566470⟩