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SAXS

Novel S-doped ordered mesoporous carbon nanospheres toward advanced lithium metal anodes

Zhang, Fei; Liu, Xiaoyan; Yang, Menghua; Cao, Xiaoqing; Huang, Xingyu; Tian, Yue; Zhang, Fang; Li, Hexing

 ApplicationCharacterizationCustomer publicationsMaterialPhase analysisPorous materialRenewable energySAXSTechnique

Novel S-doped ordered mesoporous carbon nanospheres toward advanced lithium metal anodes

Zhang, Fei; Liu, Xiaoyan; Yang, Menghua; Cao, Xiaoqing; Huang, Xingyu; Tian, Yue; Zhang, Fang; Li, Hexing

Lithium metal anode has been considered as an ideal anode for the next generation lithium batteries owing to its high energy density. However, its practical application is still limited by the low Coulombic efficiency and poor safety performance due to the lithium dendrites caused by uncontrollable lithium deposition and unstable…
Identifying the Superstability Landscapes of Clay–Carbon Nanosheet Suspensions

Kumar, Sanjay; Harikrishnan, G.

 ApplicationCharacterizationCompositesCustomer publicationsFractal dimensionMaterialOtherSAXSTechnique

Identifying the Superstability Landscapes of Clay–Carbon Nanosheet Suspensions

Kumar, Sanjay; Harikrishnan, G.

Using a combination of several experiments, we identify the landscapes of the widely reported superstability of suspensions formed by codispersion of nanosheets of clay and carbon. Primarily, two distinct, abrupt transitions within this superstability are observed. This observation made on a series of model laponite–graphene oxide superstable two-dimensional sheet suspensions…
An “interaction-mediating” strategy towards enhanced solubility and redox properties of organics for aqueous flow batteries

Huang, Zhifeng; Kay, Christopher W. M.; Kuttich, Björn; Rauber, Daniel; Kraus, Tobias; Li, Hongjiao; Kim, Sangwon; Chen, Ruiyong

 (Natural) polymersApplicationCharacterizationCustomer publicationsMaterialOtherRenewable energySAXSTechniqueTemperature

An “interaction-mediating” strategy towards enhanced solubility and redox properties of organics for aqueous flow batteries

Huang, Zhifeng; Kay, Christopher W. M.; Kuttich, Björn; Rauber, Daniel; Kraus, Tobias; Li, Hongjiao; Kim, Sangwon; Chen, Ruiyong

Aqueous redox flow batteries using electroactive organic materials are currently attracting significant attention. However, the influence of supporting electrolytes on the aqueous solubility, electrochemical reversibility and chemical stability of the organic components has rarely been investigated. Here, a new electrolyte design strategy towards enhanced solubility and chemical stability of…
Unraveling the Role of Alkali Cations in the Growth Mechanism of Gd2O2S Nanoparticles

Larquet, Clément; Carriere, David; Nguyen, Anh-Minh; Le, Thi Kim-Chi; Frogneux-Plé, Xavier; Génois, Isabelle; Le Griel, Patrick; Gauzzi, Andrea; Sanchez, Clément; Carenco, Sophie

 ApplicationCharacterizationCustomer publicationsFractal dimensionInorganic materialMaterialNanoparticles & colloidsParticlesPhase analysisSAXSShapeSizeTechnique

Unraveling the Role of Alkali Cations in the Growth Mechanism of Gd2O2S Nanoparticles

Larquet, Clément; Carriere, David; Nguyen, Anh-Minh; Le, Thi Kim-Chi; Frogneux-Plé, Xavier; Génois, Isabelle; Le Griel, Patrick; Gauzzi, Andrea; Sanchez, Clément; Carenco, Sophie

Alkali cations are required for the colloidal synthesis of Ln2O2S nanoplates in organic solvent. Based on a thorough experimental analysis using various lanthanides and three alkali ions, we challenge the commonly accepted scenario of partial lanthanide substitution by the alkali, which is supposed to favor the sulfide insertion over the…
Cast-and-Use Super Black Coating Based on Polymer-Derived Hierarchical Porous Carbon Spheres

Guo, Jing; Li, Dongdong; Zhao, Han; Zou, Weizhi; Yang, Zhusheng; Qian, Zhenchao; Yang, Shijia; Yang, Meng; Zhao, Ning; Xu, Jian

 ApplicationCharacterizationCustomer publicationsFractal dimensionMaterialOtherPorous materialSAXSSizeTechnique

Cast-and-Use Super Black Coating Based on Polymer-Derived Hierarchical Porous Carbon Spheres

Guo, Jing; Li, Dongdong; Zhao, Han; Zou, Weizhi; Yang, Zhusheng; Qian, Zhenchao; Yang, Shijia; Yang, Meng; Zhao, Ning; Xu, Jian

Super black materials with extremely low reflectance and high absorption of incident light are crucial in various applications with strict optical requirements. However, the existing super black materials suffer from technical complexity in practical use whereas the underlying physics of their ultralow reflectance is still unclear. Herein, hierarchical porous carbon…
Rheological modifiers based on supramolecular block copolymers: From weak associations to interconnected micelles

Goldansaz, Hadi; Jangizehi, Amir; Nikravan, Goolia; Verkinderen, Olivier; Goderis, Bart; Ghaffarian, Seyed Reza; van Ruymbeke, Evelyne; Ahmadi, Mostafa

 (Natural) polymersApplicationCharacteristic dimensionCharacterizationCustomer publicationsMaterialOtherPolymer researchSAXSTechniqueWAXS

Rheological modifiers based on supramolecular block copolymers: From weak associations to interconnected micelles

Goldansaz, Hadi; Jangizehi, Amir; Nikravan, Goolia; Verkinderen, Olivier; Goderis, Bart; Ghaffarian, Seyed Reza; van Ruymbeke, Evelyne; Ahmadi, Mostafa

The rheological spectra of poly(n-butyl acrylate) in the presence of a series of P(nBA-b-HEMA) rheology modifiers show a two-step relaxation process originating from the PnBA matrix and the self-assemblies. The HEMA segments are further grafted with strong, hydrogen bonding UPy groups, which both magnifies and slows down the relaxation of…
The Influence of Structure and Morphology on Ion Permeation Behaviour in Commercial Silicone Hydrogel Contact Lenses

Saez-Martinez, Virginia; Mann, Aisling; Lydon, Fiona; Molock, Frank; Layton, Siân A.; Toolan, Daniel T. W.; Howse, Jonathan R.; Topham, Paul D.; Tighe, Brian J.

 (Hydro)gelsApplicationCharacteristic dimensionCharacterizationCosmetics & consumer careCustomer publicationsMaterialSAXSTechnique

The Influence of Structure and Morphology on Ion Permeation Behaviour in Commercial Silicone Hydrogel Contact Lenses

Saez-Martinez, Virginia; Mann, Aisling; Lydon, Fiona; Molock, Frank; Layton, Siân A.; Toolan, Daniel T. W.; Howse, Jonathan R.; Topham, Paul D.; Tighe, Brian J.

The importance of the microstructure on the permeability of silicone hydrogels is widely appreciated but is poorly understood and minimally investigated. In contrast with most conventional hydrogels, the water content and water structuring within silicone hydrogels cannot be solely used to predict their permeability. To ensure comfort and eye health,…
Order–Order Phase Transitions Induced by Supercritical Carbon Dioxide in Triblock Copolymer Thin Films

Abate, Anabella A.; Vu, Giang Thi; Piqueras, Cristian M.; del Barrio, María Cecilia; Gómez, Leopoldo R.; Catalini, Gabriel; Schmid, Friederike; Vega, Daniel A.

 (Natural) polymersApplicationCharacterizationCustomer publicationsMaterialParticle interactionsPhase analysisPolymer researchSAXSSelf-assembled materialSizeTechnique

Order–Order Phase Transitions Induced by Supercritical Carbon Dioxide in Triblock Copolymer Thin Films

Abate, Anabella A.; Vu, Giang Thi; Piqueras, Cristian M.; del Barrio, María Cecilia; Gómez, Leopoldo R.; Catalini, Gabriel; Schmid, Friederike; Vega, Daniel A.

We study the influence of supercritical carbon dioxide (scCO2) on the phase behavior of a cylinder-forming polystyrene-block-polybutadiene-b-polystyrene triblock copolymer thin film. Solvent annealing with scCO2 can produce patterns with long-range order but these structures become unstable for thin films with small thicknesses. These results are in good agreement with self-consistent…
Ambient synthesis of nanomaterials by in situ heterogeneous metal/ligand reactions

S. Chang, Boyce; Thomas, Brijith; Chen, Jiahao; D. Tevis, Ian; Karanja, Paul; Çınar, Simge; Venkatesh, Amrit; J. Rossini, Aaron; M. Thuo, Martin

 ApplicationCharacteristic dimensionCharacterizationCustomer publicationsInorganic materialsMaterialMetalsSAXSTechnique

Ambient synthesis of nanomaterials by in situ heterogeneous metal/ligand reactions

S. Chang, Boyce; Thomas, Brijith; Chen, Jiahao; D. Tevis, Ian; Karanja, Paul; Çınar, Simge; Venkatesh, Amrit; J. Rossini, Aaron; M. Thuo, Martin

Coordination polymers are ideal synthons in creating high aspect ratio nanostructures, however, conventional synthetic methods are often restricted to batch-wise and costly processes. Herein, we demonstrate a non-traditional, frugal approach to synthesize 1D coordination polymers by in situ etching of zerovalent metal particle precursors. This procedure is denoted as the…
CO2-Triggered and temperature-switchable crystallization-driven self-assembly of a semicrystalline block copolymer in aqueous medium

Zhu, Rui; Luo, Xinjie; Feng, Yujun; Billon, Laurent

 (Natural) polymersApplicationCharacteristic dimensionCharacterizationCustomer publicationsMaterialPolymer researchSAXSSelf-assembled materialTechnique

CO2-Triggered and temperature-switchable crystallization-driven self-assembly of a semicrystalline block copolymer in aqueous medium

Zhu, Rui; Luo, Xinjie; Feng, Yujun; Billon, Laurent

The synthesis of a semicrystalline block copolymer comprising a hydrophilic poly(acrylic acid) (PAA) pure block and an amphiphilic poly(acrylic acid)-r-poly(octadecyl acrylate) (PAA-r-PODA) random block by nitroxide-mediated polymerization (NMP) is reported. The aggregation behavior of the copolymer in aqueous medium was studied by using a MicroCal VP differential scanning calorimeter (VP-DSC)…
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