• Article dans une revue

Elaboration, characterization and properties of silica-based single-site heterogeneous photocatalysts

M. Che, K. Mori, H. Yamashita

This study concerns single-site heterogeneous photocatalysts, composed of isolated transition metals ions (single-sites) dispersed on silica-based supports, which can be used as photocatalysts. The first part gives the definition of single-site heterogeneous catalysts. The main difficulty to…

Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2012, 468 (2143), pp.2113-2128. ⟨10.1098/rspa.2012.0139⟩. ⟨hal-01121669⟩

• Article dans une revue

Active Site Design in a Core-Shell Nanostructured Catalyst for a One-Pot Oxidation Reaction

Shusuke Okada, Kohsuke Mori, Takashi Kamegawa, Michel Che, Hiromi Yamashita

Designing an active site: A new type of core-shell structured catalyst was prepared, with a uniform SiO2 core supporting Pd nanoparticles (NPs) covered with a Ti-containing mesoporous silica shell. Generated H2O2 on the inner Pd NP site could interact with the Ti oxide moieties within the mesopores…

Chemistry - A European Journal, 2011, 17 (33), pp.9047-9051. ⟨10.1002/chem.201101241⟩. ⟨hal-00663357⟩

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Tunable physics through coordination chemistry: formation on oxide surface of Ti and Al chelates with 3-hydroxyflavone capable of electron injection and light emission

Getachew Solomon, Anton Landström, Silvia Rotta Loria, Eleonora Bolli, Alberto Mezzetti, Anna Facibeni, Sandro Cattarin, Alessio Mezzi, Stefano Protti, Saulius Kaciulis, Margherita Zavelani-Rossi, Isabella Concina

The optoelectronic features of 3-hydroxyflavone (3HF) self-assembled on the surface of an n-type semiconducting metal oxide (TiO2) and an insulator (Al2O3) are herein investigated. 3HF molecules use the coordinatively unsaturated metal ions present on the oxide surface to form metal complexes,…

Dalton Transactions, 2022, 51 (48), pp.18489-18501. ⟨10.1039/d2dt02195a⟩. ⟨hal-04025556⟩

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Black Phosphorus-Based Compound with Few Layers for Photocatalytic Water Oxidation

Junqing Yan, Yujin Ji, Lingqiao Kong, Youyong Li, Miriam Navlani-García, Shengzhong Frank Liu, Yasutaka Kuwahara, Kohsuke Mori, Michel Che, Hiromi Yamashita

Although black phosphorus (BP) is an interesting 2D nanosheet material with a high hole mobility, its application in the photocatalytic water oxidation for O2 evolution is not reported yet. Herein the use of BP coupled with a reductive hydroxide, Ni(OH)2, is reported for the first time. The…

ChemCatChem, 2018, 10 (16), pp.3424-3428. ⟨10.1002/cctc.201800555⟩. ⟨hal-04015971⟩

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Vibrational and electrical investigations of a uniaxially stretched polystyrene/carbon nanotube composite

Liliane Bokobza, Gilles Garnaud, Patricia Beaunier, Jean-Luc Bruneel

Multiwall carbon nanotube (MWCNT)/polystyrene (PS) composite materials were prepared in the absence and in the presence of a surfactant. TEM analysis reveals the formation of chains made of several nanotubes tied up together upon application of the surfactant while an almost random distribution is…

Vibrational Spectroscopy, 2013, 67, pp.6-13. ⟨10.1016/j.vibspec.2013.03.002⟩. ⟨hal-00914572⟩

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Influence of the grafting process on the orientation and the reactivity of azide-terminated monolayers onto silica surface

Nisreen Al-Hajj, Yannick Mousli, Antoine Miche, Vincent Humblot, Julien Hunel, Karine Heuze, Thierry Buffeteau, Emilie Genin, Luc Vellutini

Click chemistry is widely used in materials and surface science for its high efficiency, ease of use and high yields. Azide-terminated SAMs have been prepared successfully by using three different deposition methods (postfunctionalization and direct grafting by immersion as well as spin coating).…

Applied Surface Science, 2020, 527, pp.146778. ⟨10.1016/j.apsusc.2020.146778⟩. ⟨hal-03007686v2⟩

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Enzyme-assisted mineralization of calcium phosphate: exploring confinement for the design of highly crystalline nano-objects

E. Colaço, D. Lefèvre, E. Maisonhaute, D. Brouri, C. Guibert, C. Dupont-Gillain, Karim El Kirat, S. Demoustier-Champagne, J. Landoulsi

In hard tissues of vertebrates, calcium phosphate (CaP) biomineralization is a fascinating process that combines specific physicochemical and biochemical reactions, resulting in the formation of extracellular matrices with elegant nanoarchitectures. Although several “biomimetic” strategies have…

Nanoscale, 2020, 12 (18), pp.10051-10064. ⟨10.1039/d0nr01638a⟩. ⟨hal-03266105⟩

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Chemical Preparation of Supported Bimetallic Catalysts. Gold-Based Bimetallic, a Case Study

Catherine Louis

This review focuses on the chemical methods used to prepare supported bimetallic heterogeneous catalysts, i.e., bimetallic nanoparticles deposited on a support. The review is limited to the preparation of gold-based bimetallic catalysts and moreover to bimetallic nanoparticles supported on powder…

Catalysts, 2016, 6 (8), pp.110. ⟨10.3390/catal6080110⟩. ⟨hal-01375388⟩

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Biomorphic tubular nickel oxide structures: Effect of the synthesis parameters on their structural and functional properties, surface-related applications

Mirela Airimioaei, Vlad Lukacs, Isabelle Lisiecki, Patricia Beaunier, Juliette Blanchard, Doina Lutic, Sorin Tascu, Petronel Postolache, Cristina Ciomaga, Marius Olariu, Liliana Mitoseriu

Journal of Alloys and Compounds, 2019, pp.152543. ⟨10.1016/j.jallcom.2019.152543⟩. ⟨hal-02334441⟩

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Discrimination of Surface and Bulk Structure of Crystalline Hydroxyapatite Nanoparticles by NMR

Manel Ben Osman, Sarah Diallo-Garcia, Virginie Herledan, Dalil Brouri, Tetsuya Yoshioka, Jun Kubo, Yannick Millot, Guylène Costentin

Solid state 1H and 31P NMR spectroscopy was used to characterize well-crystallized hydroxyapatite samples of different stoichiometry prepared by a precipitation route. The aim of the paper was to investigate the bulk structural features of samples with different stoichiometry and to discriminate…

Journal of Physical Chemistry C, 2015, 119 (40), pp.23008-23020. ⟨10.1021/acs.jpcc.5b08732⟩. ⟨hal-01212297⟩