• Article dans une revue

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⟩

• Article dans une revue

The influence of the preparation procedures on the catalytic activity of Fe-BEA zeolites in SCR of NO with ammonia and N2O decomposition

Paweł Boroń, Lucjan Chmielarz, Jacek Gurgul, Kazimierz Łątka, Barbara Gil, Jean-Marc Krafft, Stanislaw Dzwigaj

Three series of Fe-containing BEA zeolites are prepared by two-step postsynthesis (PS), ion exchange (IE) and conventional wet impregnation (Imp) procedures with various Fe content (1.0–4.0 Fe wt.%). In these series of zeolites iron is mainly present as pseudo-tetrahedral Fe(III) as evidenced by…

Catalysis Today, 2014, 235, pp.210-225. ⟨10.1016/j.cattod.2014.03.018⟩. ⟨hal-01117136⟩

• Article dans une revue

Nanocrystalline NbC formation from mesostructured niobium oxide studied by HRTEM, SAED and in situ XRD

S. Witkowski, M. Ruszak, Celine Sayag, J. Pielaszek, G. Djéga-Mariadassou

Mechanism of the nanometric size niobium carbide synthesis from mesostructured niobium oxide precursor is proposed. High-resolution transmission electron microscopy (HRTEM) and selected area electron diffraction (SAED) combined with in situ X-ray diffraction (XRD) were successfully used to study…

Applied Catalysis A : General, 2006, 307, pp.205-211. ⟨10.1016/j.apcata.2006.03.044⟩. ⟨hal-00128099⟩

• Article dans une revue

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⟩

• Article dans une revue

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⟩

• Article dans une revue

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⟩

• Article dans une revue

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⟩

• Article dans une revue

In Situ Generation of Active Pd Nanoparticles within a Macroreticular Acidic Resin: Efficient Catalyst for the Direct Synthesis of Hydrogen Peroxide

Kohsuke Mori, Akihiro Hanafusa, Michel Che, Hiromi Yamashita

An acidic resin bearing SO3H functional groups within its reticular structure acts as an efficient support for the in situ formation of highly active Pd nanoparticles (NPs) responsible for the direct synthesis of hydrogen peroxide from H2 and O2. Characterization by means of X-ray absorption fine…

Journal of Physical Chemistry Letters, 2010, 1 (10), pp.1675-1678. ⟨10.1021/jz100509x⟩. ⟨hal-00604783⟩

• Chapitre d'ouvrage

Investigation of different preparation methods of PtIr, PtIrSn and PtIrGe catalysts

Christophe Poupin, Camille La Fontaine, Laurence Pirault-Roy

Studies in Surface Science and Catalysis, pp.467-470, 2010, ⟨10.1016/S0167-2991(10)75086-2⟩. ⟨hal-02497268⟩