Huang, Jieyang; Tarábek, Ján; Kulkarni, Ranjit; Wang, Cui; Dracínský, Martin; Smales, Glen J.; Tian, Yu; Ren, Shijie; Pauw, Brian R.; Resch-Genger, Ute; Bojdys, Michael J.
A π-Conjugated, Covalent Phosphinine Framework
Structural modularity of polymer frameworks is a key advantage of covalent organic polymers, however, only C, N, O, Si, and S have found their way into their building blocks so far. Here, the toolbox available to polymer and materials chemists is expanded by one additional nonmetal, phosphorus. Starting with a…
Facile Route for the Fabrication of Polypropylene Separators for Lithium-Ion Batteries with High Elongation and Strong Puncture Resistance
Kang, Jian; Chen, Dandan; Xiong, Bijin; Zheng, Nan; Yang, Feng; Xiang, Ming; Zheng, Zhuo
A facile route for fabrication of polypropylene separators for lithium-ion batteries with high elongation and strong puncture resistance has been proposed in this work. Polypropylene separators immersed in paraffin wax have been prepared to introduce small molecules into separators. The influence of small molecules on mechanical properties of separators is…
Microwave-Assisted Synthesis of Ultrasmall Zinc Oxide Nanoparticles
Saloga, Patrick E. J.; Thünemann, Andreas F.
We report on ultrasmall zinc oxide single-crystalline nanoparticles of narrow size distribution and long-term colloidal stability. These oleate-stabilized nanoparticles were synthesized using microwave-assisted synthesis for 5 min, corresponding to a 99% decrease in synthesis time, when compared to the conventional synthesis method. It was observed that the average particle radius…
Understanding the Static Interfacial Polymer Layer by Exploring the Dispersion States of Nanocomposites
Genix, Anne-Caroline; Bocharova, Vera; Carroll, Bobby; Lehmann, Michelle; Saito, Tomonori; Krueger, Susan; He, Lilin; Dieudonné-George, Philippe; Sokolov, Alexei P.; Oberdisse, Julian
The dynamic and static properties of the interfacial region between polymer and nanoparticles have wide-ranging consequences on performances of nanomaterials. The thickness and density of the static layer are particularly difficult to assess experimentally due to superimposing nanoparticle interactions. Here, we tune the dispersion of silica nanoparticles in nanocomposites by…
Hard–Soft Carbon Composite Anodes with Synergistic Sodium Storage Performance
Xie, Fei; Xu, Zhen; Jensen, Anders C. S.; Au, Heather; Lu, Yaxiang; Araullo‐Peters, Vicente; Drew, Alan J.; Hu, Yong-Sheng; Titirici, Maria-Magdalena
A series of hard–soft carbon composite materials is produced from biomass and oil waste and applied as low-cost anodes for sodium-ion batteries to study the fundamentals behind the dependence of Na storage on their structural features. A good reversible capacity of 282 mAh g−1 is obtained at a current density…
Size-Selective Adsorption in Nanoporous Polymers from Coumarin Photo-Cross-Linked Columnar Liquid Crystals
Concellón, Alberto; Schenning, Albertus P. H. J.; Romero, Pilar; Marcos, Mercedes; Serrano, José Luis
We have prepared nanoporous polymers from columnar hexagonal hydrogen-bonded complexes, whose order is fixed by coumarin photoinduced cycloaddition (photodimerization). Two different hydrogen-bonded complexes were used and consisted of a melamine (M) or tris(triazolyl)triazine (T) derivative acting as central templates and three peripheral carboxylic acids containing coumarin units. These…
Pore size dependent cation adsorption in a nanoporous polymer film derived from a plastic columnar phase
Bhattacharjee, Subham; Lugger, Jody AM; Sijbesma, Rint P.
Chemical Communications, 2018, vol 54, 68, pp. 9521–9524DOI:Back to the overview
Photocatalytic degradation of bisphenol A induced by dense nanocavities inside aligned 2D-TiO2 nanostructures
Bakardjieva, Snejana; Fajgar, Radek; Jakubec, Ivo; Koci, Eva; Zhigunov, Alexander; Chatzisymeon, Efthalia; Davididou, Konstantina
The preparation of materials with aligned porosity in the nanometer range is of technological importance for a wide range of applications in molecular filtration, biomaterials and catalysis. Herein we present the advantages offered by cryo – lyophilisation technique as a smart and green non-standard concept to produce dense regular polyhedral…