Výsledky vyhledávání - "Catherine Bied"

Porphyrin-based hybrid silica-titania as visible-light photocatalyst

Autor: Carole Carcel, Michel Wong Chi Man, Catherine Bied, Benoît Heinrichs, Julien G. Mahy, Christian Damblon, Carlos A. Páez, Stéphanie Lambert, Andrew S. Tatton

Publikováno v: Journal of Photochemistry and Photobiology A: Chemistry
Journal of Photochemistry and Photobiology A: Chemistry, Elsevier, 2019, 373, pp.66-76. ⟨10.1016/j.jphotochem.2019.01.001⟩

International audience; A silylated porphyrin derivative is co-hydrolyzed with Ti(OiPr)4 to produce a hybrid TiO2 photocatalyst, and three different ratios between porphyrin and TiO2 are made. In this way, the porphyrin fragments are held in the resu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ca776e6a6e1121b725f905b0a7434f1
https://hal.archives-ouvertes.fr/hal-03096440/document

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Efficient P- and Ag-doped titania for the photocatalytic degradation of waste water organic pollutants

Autor: Benoît Heinrichs, Julien G. Mahy, Catherine Bied, Ludivine Tasseroul, Céline Bodson, Stéphanie Lambert, Michel Wong Chi Man

Publikováno v: Journal of Alloys and Compounds. 682:144-153

In this work, physico-chemical properties and photocatalytic activity of three types of dried or dried and calcined TiO2 materials, synthesized by the cogelation method, were studied: (i) a pure TiO2 xerogel; (ii) TiO2 xerogels doped with Ag; (iii) T

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::356af39a1391456663cd6807be133ac2
https://doi.org/10.1016/j.jallcom.2016.04.295

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P-Doped Titania Xerogels as Efficient UV-Visible Photocatalysts

Autor: Catherine Bied, Sophie Pirard, Ludivine Tasseroul, Céline Bodson, René Pirard, Michel Wong Chi Man, Stéphanie Lambert, Benoît Heinrichs

Publikováno v: Journal of Materials Science and Chemical Engineering
Journal of Materials Science and Chemical Engineering, Scientific Research Publishing, 2014, 2, pp.17-32. ⟨10.4236/msce.2014.28004⟩

International audience; In the present study, sol-gel process is used to synthesize P-doped TiO2 xerogels by the cogelation method of a functionalized P alkoxide, (NH2-(CH2)2-NH-(CH2)2-P(O)-(OC2H5)2) with Ti(OC3H7)4 in either 2-methoxyethanol or isop

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5cecb9d6f8c7d4b2ec7d7744dbf6e0df
https://doi.org/10.4236/msce.2014.28004

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Bridged silsesquioxanes containing a chiral diphosphine substructure. Catalytic properties in asymmetric hydrogenation

Autor: Michel Wong Chi Man, Catherine Bied, Joël J. E. Moreau, Anne Brethon

Publikováno v: Journal of Sol-Gel Science and Technology
Journal of Sol-Gel Science and Technology, Springer Verlag, 2009, 2009 (50), pp.141-151. ⟨10.1007/s10971-009-1919-0⟩

International audience; Bridged silsesquioxanes with asymmetric catalytic properties are described. These new silica-based materials are obtained by the sol-gel hydrolysis of an organosilylated chiral compound bearing rhodium-complexed diphosphine li

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b063c58314c59284256f6b3921146624
https://doi.org/10.1007/s10971-009-1919-0

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Hybrid Organic-Inorganic Materials from Di-(2-pyridyl)methylamine-Palladium Dichloride Complex as Recoverable Catalysts for Suzuki, Heck and Sonogashira Reactions

Autor: Roser Pleixats, Montserrat Trilla, Joël J. E. Moreau, Michel Wong Chi Man, Catherine Bied

Publikováno v: Advanced Synthesis and Catalysis
Advanced Synthesis and Catalysis, Wiley-VCH Verlag, 2008, 350 (4), pp.577-590. ⟨10.1002/adsc.200700489⟩

International audience; Hybrid silica materials containing the di-(2-pyridyl)methylamine-palladium dichloride complex, prepared by sol-gel cogelification, are efficient recyclable catalysts for Suzuki (aryl bromides and chlorides), Heck (aryl bromide

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5cba0ea7998d38bfcb63e5a9ee5c4a82
https://doi.org/10.1002/adsc.200700489

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Insights into the Self-Directed Structuring of Hybrid Organic−Inorganic Silicas through Infrared Studies

Autor: † and Jean-Louis Sauvajol, Luc Vellutini, Jean-Louis Bantignies, Joël J. E. Moreau, Catherine Bied, Philippe Dieudonné, Michel Wong Chi Man, Patrick Hermet, John R. Bartlett, David Maurin

Publikováno v: Journal of Physical Chemistry B
Journal of Physical Chemistry B, American Chemical Society, 2006, 110 (32), pp.15797-15802. ⟨10.1021/jp060975r⟩

International audience; Fourier transform infrared (FTIR) spectroscopy has been used to probe the organization of the organic fragments in lamellar bridged silsesquioxanes with organic substructures based on alkylene chains of various lengths and ure

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7c03d814aa4d020ed31d9ca3624575de
https://doi.org/10.1021/jp060975r

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A simple access to ω-aminoalkyltrialkoxysilanes: Tunable linkers for self-organised organosilicas

Autor: Catherine Bied, Michel Wong Chi Man, Benoit P. Pichon, Joël J. E. Moreau

Publikováno v: Journal of Organometallic Chemistry
Journal of Organometallic Chemistry, Elsevier, 2006, 691 (6), pp.1126-1130. ⟨10.1016/j.jorganchem.2005.11.036⟩

International audience; A simple route to ω-aminoalkyltriethoxysilanes with variable alkylene chain lengths, (EtO)3Si(CH2)nNH2 (n = 5, 11) is described. These silyl linkers have been used to prepare urea-based compounds with H-bonding and hydrophobi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4cedcb60d6f147872f83e28eb37c6e92
https://doi.org/10.1016/j.jorganchem.2005.11.036

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Facile Cleavage of Si−C Bonds during the Sol-Gel Hydrolysis of Aminomethyltrialkoxysilanes− A New Method for the Methylation of Primary Amines

Autor: Joël J. E. Moreau, Augustin Adima, Michel Wong Chi Man, Catherine Bied

Publikováno v: European Journal of Organic Chemistry
European Journal of Organic Chemistry, Wiley-VCH Verlag, 2004, pp.2582-2588. ⟨10.1002/ejoc.200400079⟩

The reaction of chloromethyltriethoxysilane with (1R,2R)-bis(methylamino)cyclohexane (1) afforded the corresponding bis-silylated compound 2. The sol-gel hydrolysis of 2 did not give the expected bridged silsesquioxane owing to quantitative Si−C-bo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::237f1d824aef0d04ed802af9c40664d0
https://doi.org/10.1002/ejoc.200400079

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Shape-Controlled Bridged Silsesquioxanes: Hollow Tubes and Spheres

Autor: Joël J. E. Moreau, Michel Wong Chi Man, Catherine Bied, Luc Vellutini

Publikováno v: Chemistry-A European Journal
Chemistry-A European Journal, Wiley-VCH Verlag, 2003, 9, pp.1594-1599. ⟨10.1002/chem.200390183⟩

International audience; A new approach for the morphological control of bridged silsesquioxanes has been achieved by the hydrolysis of silylated organic molecules bearing urea groups. The urea groups are responsible for the auto-association of the mo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab42b33dfd9ce0227433d82a2520cfea
https://doi.org/10.1002/chem.200390183

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[Untitled]

Autor: Catherine Bied, Michel Wong Chi Man, Joël J. E. Moreau, Luc Vellutini

Publikováno v: Journal of Sol-Gel Science and Technology. 26:583-586

Silylated racemic, chiral (R,R)- and (S,S)-diureidocyclohexane derivatives have been synthesized in quantitative yields by the reaction of respectively trans racemic, (R,R)- or (S,S)-1,2-diaminocyclohexanes with 3-isocyanatopropyltriethoxysilane. The

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::348fd5560054e48dc115e71d3a4a7dd2
https://doi.org/10.1023/a:1020724105058

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