• Article dans une revue

From Al2O3-supported Ni(II)-ethylenediamine complexes to CO hydrogenation catalysts: Characterization of the surface sites and catalytic properties

Eric Marceau, Axel Löfberg, Jean-Marc Giraudon, Fabien Négrier, Michel Che, Lucien Leclercq

Applied Catalysis A : General, 2009, 362, pp.34-39. ⟨10.1016/j.apcata.2009.04.029⟩. ⟨hal-00412330⟩

• 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

Influence of the temperature on the reduction mechanism of concentrated nitric acid on a silicon-enriched austenitic stainless steel

I. Bahtit, N. Gruet, B. Puga, X.R. Nóvoa, Cyril Thomas, V. Vivier

Corrosion of silicon-enriched stainless steel in nitric acid strongly depends on the temperature of the electrolyte. Therefore, the reduction reaction of nitric acid on this material was investigated from 40 to 107 °C. For the first time, the autocatalytic reduction mechanism of nitric acid…

Electrochimica Acta, 2023, 446, pp.142068. ⟨10.1016/j.electacta.2023.142068⟩. ⟨hal-04257869⟩

• Thèse

Développement d’un microsystème électrochimique pour l’étude de micro-objets circulants dans un canal microfluidique, Development of an electrochemical microsystem for the study of circulating micro-objects in a microfluidic channel

Ines Amokrane

Dans le cadre de cette thèse, l’objectif est de caractériser des micro-objets circulant dans un microcanal à l’aide de techniques électrochimiques. Dans le but de concevoir et de fabriquer un tel système, plusieurs méthodes et techniques sont nécessaires. Tout d’abord, le microsystème est constitué…, In this thesis, the aim is to characterise micro-objects flowing in a microchannel using electrochemical techniques. In order to design and fabricate such a system, several methods and techniques are required. Firstly, the microsystem consists of PDMS microchannels and thin film microelectrodes.…

Dynamique des Fluides [physics.flu-dyn]. Sorbonne Université, 2022. Français. ⟨NNT : 2022SORUS049⟩. ⟨tel-03714132⟩

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Diagnosis of the Diatom Community upon Biofilm Development on Stainless Steels in Natural Freshwater

Caroline Richard, Smita Mitbavkar, Jessem Landoulsi

This paper reports the development of biofilms on stainless steels (SS) upon exposure in a natural freshwater ecosystem for about six months and focuses on the composition of diatom populations. By using environmental scanning electron microscopy (ESEM) technique, we provide a detailed description…

Scanning, 2017, 2017, pp.5052646. ⟨10.1155/2017/5052646⟩. ⟨hal-01547972⟩

• Article dans une revue

Study of the Structure of OH Groups on MgO by 1D and 2D 1 H MAS NMR Combined with DFT Cluster Calculations

Céline Chizallet, Guylène Costentin, Helene Lauron-Pernot, Michel Che, Christian Bonhomme, Jocelyne Maquet, Françoise Delbecq, Philippe Sautet

Journal of Physical Chemistry C, 2007, 111 (49), pp.18279 - 18287. ⟨10.1021/jp077089g⟩. ⟨hal-01896667⟩

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Influence of Magnesium Substitution on the Basic Properties of Hydroxyapatites

Sarah Diallo-Garcia, Danielle Laurencin, Jean-Marc Krafft, Sandra Casale, Mark E. Smith, Hélène Pernot, Guylène Costentin

Magnesium-substituted hydroxyapatites (HAP) have been prepared to evaluate the influence of cationic substitution on the surface basic properties of HAP. Despite successful introduction of some of the magnesium cations into the HAP structure (as evidenced by XRD, infrared, and Raman), no influence of…

Journal of Physical Chemistry C, 2011, 115, pp.24317-24327. ⟨10.1021/jp209316k⟩. ⟨hal-00653862⟩

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Homogeneous and Heterogeneous Catalysis for the Synthesis of Cyclic and Polymeric Carbonates from CO2 and Epoxides: A Mechanistic Overview

Guillaume Laugel, Catarina Rocha Carvalho, Pascale Massiani, Thomas Onfroy, Franck Launay

The utilization of CO2 for the production of useful chemicals is nowadays considered as a promising way to contribute to the reduction of greenhouse gases in the atmosphere, while valorizing at the same time this widely available resource. The synthesis of cyclic carbonates and polycarbonates via…

Advanced Chemistry Letters, 2013, 1, pp.195-214. ⟨10.1166/acl.2013.1036⟩. ⟨hal-00983652⟩

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Incorporation of vanadium into the framework of hydroxyapatites: importance of the vanadium content and pH conditions during the precipitation step

Sarah Petit, Thrimurthulu Gode, Cyril Thomas, Stanislaw Dzwigaj, Yannick Millot, Dalil Brouri, Jean-Marc Krafft, Gwenaelle Rousse, Christel Laberty-Robert, Guylène Costentin

Even though vanadium-modified hydroxyapatite (V-HAp) samples are very promising systems for oxidative dehydrogenation of propane, the incorporation of vanadium into the hydroxyapatite framework was reported to be limited and to lead to over-stoichiometric compounds. Here, the synthesis of a Ca10(…

Physical Chemistry Chemical Physics, 2017, 19 (14), pp.9630 - 9640. ⟨10.1039/C6CP08782E⟩. ⟨hal-01522440⟩

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Anchoring of Pt(II) Pyridyl Complex to Mesoporous Silica Materials: Enhanced Photoluminescence Emission at Room Temperature and Photooxidation Activity using Molecular Oxygen

Kohsuke Mori, Kentaro Watanabe, Masayoshi Kawashima, Michel Che, Hiromi Yamashita

Chloro(2,2':6',2''-terpyridine)platinum(II) ([Pt(tpy)Cl]Cl) complex was successfully anchored to a series of (3-aminopropyl)trimethoxysilane-modified mesoporous silica materials (MCM-41, SBA-15, and MCM-48). Pt LIII-edge x-ray absorption fine structure (XAFS) measurements reveal…

Journal of Physical Chemistry C, 2011, 115 (4), pp.1044-1050. ⟨10.1021/jp105577f⟩. ⟨hal-00602944⟩