34 research outputs found
Synthesis and crystal structure of tris[1-(2-azolyl)-2-azabuten-4-yl]amineiron(III), [Fe((pyrol)3tren)]
No full textModified Halloysite Nanotubes: Nanoarchitectures for Enhancing the Capture of Oils from Vapor and Liquid Phases
No full text
Magnetic exchange interactions in binuclear transition-metal complexes. 18. Dianions of 5,8-dihydroxy-1,4-naphthoquinone, 1,4-dihydroxy-9,10-anthraquinone, and 1,5-dihydroxy-9,10-anthraquinone as bridging ligands in copper(II) and nickel(II) complexes
No full textAmphiprotic Properties of a Bis(μ-hydroxo)divanadium(IV)-Substituted γ-Keggin-Type Silicodecatungstate Containing Two Different Kinds of Hydroxyl Moieties
No full textHexagonalization of Aluminogermanate Imogolite Nanotubes Organized into Closed-Packed Bundles
No full textInternational audienceImogolite nanotubes are promising building blocks for nanotechnologies with potential applications in molecular separation, molecular storage, or catalysis. We present an experimental study of the structure of germanium-based imogolite nanotubes Al2O3Ge(OH)4 arranged in bundles. It combines cryo-transmission electron microscopy, infrared spectroscopy, thermogravimetric measurements, and X-ray scattering experiments. Thanks to a systematic method developed to analyze X-ray scattering diagrams as a function of the nanotube shape, single-walled germanium-based imogolite nanotubes, known as cylindrical for more than 30 years, are shown to take an hexagonal base shape when arranged in bundles. Physical and chemical properties of hexagonal imogolite nanotubes should markedly differ from those of cylindrical ones, making hexagonal basis nanotubes a ?new? member, of particular interest, of the rich family of imogolites
