Category

Inorganic materials

ApplicationCharacterizationCustomer publicationsInorganic materialInorganic materialsMaterialOtherSAXSTechniqueWAXS

Elaboration of microporous CeO2 thin layers having nanocrystallites network controlled by Pluronic P123: Impact of key experimental parameters

Lu, Zijie; Rébiscoul, Diane; Causse, Jeremy; le Goff, Xavier; Mollard, Nicolas; Deschanels, Xavier

Microporous ceria thin films having nanocrystallites network were synthesized by evaporation-induced self-assembly process, using P123 amphiphilic copolymer as structure-directing agent. The impact of key experimental parameters, i.e., the sol ageing, the relative humidity (RH), the thermal treatment, on the thin layer elaboration were investigated. The results show that the organization…
27 January 2020
(Natural) polymersApplicationCharacterizationCompositesCustomer publicationsFractal dimensionInorganic materialsMaterialSAXSSizeTechnique

Effective corrosion protection by eco-friendly self-healing PMMA-cerium oxide coatings

Harb, Samarah Vargas; Trentin, Andressa; de Souza, Thiago Augusto Carneiro; Magnani, Marina; Pulcinelli, Sandra Helena; Santilli, Celso Valentim; Hammer, Peter

Metallic alloys are extensively used in many technological applications, however their susceptibility to corrosion causes huge economical losses and can result in failure of critical components. Aiming to obtain environmentally friendly, self-healing and high efficient anticorrosive coatings, organic-inorganic hybrids consisting of poly(methyl methacrylate) (PMMA) covalently bonded to CeO2/Ce2O3…
27 January 2020
ApplicationCharacterizationCustomer publicationsInorganic materialInorganic materialsMaterialOtherSAXSTechnique

Ibuprofen loading into mesoporous silica nanoparticles using Co-Spray drying: A multi-scale study

Ruffel, Lucas; Soulié, Jérémy; Coppel, Yannick; Roblin, Pierre; Brouillet, Fabien; Frances, Christine; Tourbin, Mallorie

Mesoporous Silica Nanoparticles (MSN) are used in an increasing number of applications in nanomedicine. Their synthesis and external/internal functionalization have been extensively studied as well as their biological properties. Nevertheless, the conventional drug loading processes of MSN (such as impregnation), do not enable sufficient efficiency and are difficult to consider…
27 January 2020
ApplicationCharacterizationCustomer publicationsFractal dimensionInorganic materialsMaterialMetalsSAXSSizeTechnique

Precipitation in original Duralumin A-U4G versus modern 2017A alloy

Brunet, Magali; Malard, Benoit; Ratel-Ramond, Nicolas; Deshayes, Christophe; Joulié, Sébastien; Warot-Fonrose, Bénédicte; Sciau, Philippe; Douin, Joël; De Geuser, Frédéric; Deschamps, Alexis

Precipitation in Duralumin, a historic quaternary alloy of the type: Al–Cu–Mg–Si, was never fully studied nor observed by current electron microscopy techniques. This article presents the full characterization and comparison of two alloys: a Duralumin (A-U4G) from the 1950s collected on a vintage aircraft and its modern equivalent: a 2017A…
27 January 2020
ApplicationCharacterizationCustomer publicationsInorganic materialsMaterialMetalsSAXSSizeTechnique

Nanocrystalline ODS-iron aluminide by cryo-milling: consolidation, microstructure and mechanical behavior

Sarma, S. Sudhakara; Prasad, Satya; Joardar, Joydip; Suresh, K.; Reddy, A. V.; Vijay, R.

Nanocrystalline oxide dispersion strengthened (ODS) Fe-25 at% Al alloy was produced by cryo-milling of elemental powder blend and Y2O3. The as-milled powder was consolidated by hot extrusion. The Microstructure and mechanical properties of the consolidated material were evaluated. Fracture of powder particles during milling was dominant due to cryo temperatures…
27 January 2020
(Natural) polymersApplicationCharacterizationCustomer publicationsInorganic materialInorganic materialsMaterialPhase analysisTechniqueWAXS

Slow Magnetic Relaxation of Co(II) Single Chains Embedded within Metal–Organic Superstructures

Kawamura, Airi; Filatov, Alexander S.; Anderson, John S.; Jeon, Ie-Rang

Two coordination polymers of the type Co(BPDC)(N-ox), with BPDC being 4,4?-biphenyldicarboxylate and N-ox being pyridine N-oxide (PNO) or isoquinoline N-oxide (IQNO), have been synthesized and characterized. The compounds feature 2D and 3D metal–organic networks that encapsulate Co(II)-based chains in a rigid superstructure. The dc and ac magnetic properties of these…
27 January 2020
ApplicationCharacterizationCustomer publicationsGISAXSInorganic materialInorganic materialsMaterialPorous materialSurface structure and patternsTechnique

Photocatalytic Template Removal by Non-Ozone-Generating UV Irradiation for the Fabrication of Well-Defined Mesoporous Inorganic Coatings

Reid, Barry; Taylor, Alaric; Alvarez-Fernandez, Alberto; Ismael, Muhamad Hafiz; Sharma, Shatakshi; Schmidt-Hansberg, Benjamin; Guldin, Stefan

The processing of mesoporous inorganic coatings typically requires a high-temperature calcination step to remove organic precursors that are essential during the material assembly. Lowering the fabrication energy costs and cutting back on the necessary resources would provide a greater scope for the deployment in applications such as architectural glass, optical…
27 January 2020
ApplicationCatalystsCharacteristic dimensionCharacterizationCustomer publicationsInorganic materialInorganic materialsMaterialSAXSTechniqueWAXS

Restricting Effect of Solvent Aggregates on Distribution and Mobility of CuCl2 in Homogenous Catalysis

Wang, Yongtao; Wang, Guanqi; Yao, Jia; Li, Haoran

Extensive experimental and theoretical studies have proven the existence of solvent aggregates in alcohols, and some attempts have been made to explore the uneven distribution of solutes. Here, we studied the distribution and mobility of CuCl2 in 3-hexanol and ethanol and investigated the aerobic oxidation of 2,3,6-trimethylphenol under these systems.…
25 November 2019
ApplicationCharacterizationCustomer publicationsGIWAXSInorganic materialsPhase analysisSurface structure and patternsTechniqueWAXS

5 nm Ordered Structures Self-Assembled by C2-Symmetric Hybrids with Polyhedral Oligomeric Silsesquioxane and Hexa-peri-Hexabenzocoronene.

Zhang, Wei; Pan, Hongbing; Lyu, Xiaolin; Gu, Kehua; Xiao, Anqi; Shen, Zhihao; Fan, Xing-he

Hybrids consisting of polyhedral oligomeric silsesquioxane (POSS) and hexa-peri-hexabenzocoronene (HBC) with a dumbbell topology and C2 symmetry were designed and synthesized. They self-assemble into 5 nm ordered structures. In particular, the increased steric effect with increasing POSS units stabilizes a square columnar phase (Colsqu) which is important in nanotemplating. These…
25 November 2019
ApplicationCharacterizationCustomer publicationsInorganic materialInorganic materialsMaterialOil & gasPhase analysisSAXSTechnique

Partial Transformation of Imogolite by Decylphosphonic Acid Yields an Interface Active Composite Material

Lange, Tobias; Charpentier, Thibault; Gobeaux, Frédéric; Charton, Sophie; Testard, Fabienne; Thill, Antoine

The phosphonic acid moiety is commonly used as an anchoring group for the surface modification of imogolite. However, the impact of the reaction on its structure has never been clearly analyzed before. We study the reaction of imogolite and decylphosphonic acid by combining infrared spectroscopy, X-ray scattering, scanning electron microscopy,…
18 July 2019