Materials Literature
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Composite stacking films, which can be applied as the bipolar plates of redox flow batteries, were fabricated via a tape-casting process that used slurry of graphite, CNT, and resin materials. The slurry was made of 25~45 wt% conductive filler (graphite, CNT) and 55~75 wt% polyvinyl butyral (PVB) binder solution (bind…
Ba2SiO4:Eu(2+) powders were prepared using a sol-gel-combustion (hybrid) process with tetraethyl orthosilicate (TEOS) and colloidal silica (C-SiO2) as Si sources. The effects of the silicon sources and preparation conditions on phase formation and luminescent properties were investigated. The B2S:Eu(2+) powders synthe…
Abstract Gold‐Nanopartikel (AuNPs) erfahren zurzeit aufgrund ihrer interessanten physikochemischen Eigenschaften große wissenschaftliche Beachtung. Wir stellen hier eine einfache und kontrollierte lichtvermittelte Synthese von Gold‐Nanopartikeln über Norrish‐Typ‐I‐Reaktion in photoaktiven Polymeren vor. Diese funktion…
Poly(acrylic acid)/TiO2 (PAA-g-TiO2) nanocomposites were synthesized by the surface thiol-lactam initiated radical polymerization (TLIRP) technique. The synthetic strategy involved the modification of TiO2by a one-step direct anchoring of thiol groups via reaction between the hydroxyl groups on the surface of TiO2 and…
In the present study, we addressed the palladium (Pd) decoration of multiwalled carbon nanotube (CNT)/activated carbon (AC) hybrid composites (MWCNT/AC), and examined the catalytic behavior of the composites in the hydrogenation of trans-cinnamaldehyde. The MWCNT/AC composites were prepared by growing CNT network on t…
Recently, there has been considerable effort to develop suitable scaffolds for tissue engineering applications. Cell adhesion is a prerequisite for cells to survive. In nature, the extracellular matrix (ECM) plays this role. Therefore, an ideal scaffold should be structurally similar to the natural ECM and have biocom…
An ideal invisibility cloak makes arbitrary macroscopic objects within the cloak indistinguishable from its surrounding—for all directions, illumination patterns, polarizations, and colors of visible light. Recently, we have approached such an ideal cloak for the diffusive regime of light propagation using a core-shel…
Hemicelluloses were analyzed by Fourier‐transform infrared spectroscopy (FT‐IR), thermogravimetric analysis (TGA), and derivative thermogravimetric analysis (DTG) in order to investigate the chemical structure of hemicellulose isolated from bamboo natural polymers bio‐composites prepared under different mold pressing…
Mn doping effect on the crystal structure and spontaneous polarization ( P s ) in ferroelectric BiFeO 3 (BFO) thin films are experimentally and theoretically investigated. Polarization hysteresis measurements for BiFe 1− x Mn x O 3 (BFMO) films grown on (100) SrTiO 3 substrates with SrRuO 3 electrodes indicate that re…
Enhanced electrical resistivity about over two orders of magnitude for Na 0.5 Bi 2.5 Nb 2 O 9 ( NBNO ) high‐temperature piezoceramics potentially used in piezoelectric sensors is achieved by the introduction of highly insulating Al 2 O 3 addition. Possible pyrochlore secondary phases of two types of grains: irregular…
This paper describes research on the optics of functional materials, which can change their dielectric properties according to their function. Vanadium dioxide is a good example of such a material where the insulator-to-metal phase transition offers the possibility to control dielectric properties and to use them as a…
Improving the performance of organic electronic devices depends on exploiting the complex nanostructures formed in the active layer. Current imaging methods based on transmission electron microscopy provide limited chemical sensitivity, and thus the application to materials with compositionally similar phases or compl…
Unraveling the metal-insulator transition (MIT) mechanism of VO2 becomes tremendously important for understanding strongly correlated character and developing switching applications of VO2. First-principles calculations were employed in this work to map the reduced-dimension potential energy surface of the MIT of VO2.…
A facile chemical synthesis of poly(methyl methacrylate) (PMMA) grafted CdTe nanocrystals (CdTe NCs) has been realized. Initially, CdTe NCs were prepared in a controlled manner using 2-mercaptoehanol (ME) as a capping agent. Then, 3-(trimethoxysilyl) propyl methacrylate having C˭C double bonds were anchored with ME ca…
Rubber wood sawdust (RS) was used as a filler to improve the water absorption, mechanical, morphological, and thermal properties of thermoplastic starch (TPS). The TPS/RS composites were prepared using compression molding and glycerol as the plasticizer. Moreover, the effect of commercial cellulose (CC) on the propert…
Young’s modulus of green illite from Füzérradvány (Hungary) was measured in-situ in the temperature interval 20 °C – 1100 °C and auxiliary analyses DTA, TG and TDA, XRD and EGA, were also performed. It was found that a removal of the physically bound water (20 °C – 250 °C) sets illite crystals closer which leads to a…
Abstract Castor oil‐based epoxy monomer was prepared using a two‐step approach: epoxidation of castor oil, followed by acrylation of epoxidized castor oil. A bio‐based diglycidyl ether of bisphenol A (DGEBA) epoxy nanocomposites was prepared by the incorporation of organo‐modified montmorillonite (OMMT) clay to the DG…
Monotonic tension, fatigue and creep experiments were conducted on an oxide/oxide ceramic matrix composite over the range of temperature 20–1200 °C. The role of continuous fibre reinforcement , differential thermal expansion, stress redistribution interactions between fibres and matrix and the influence of inherent pr…
Oxide dispersion strengthened Fe–Cr alloys produced by mechanical alloying and spark plasma sintering were found to form different heterogeneous hardness distribution and microstructures depending on the milling parameters. Microstructure investigations by means of electron‐diffraction techniques and atom probe tomogr…
Abstract A “chirality driven self‐sorting” strategy is introduced for the controlled supramolecular organization of donor (D) and acceptor (A) molecules in multicomponent assemblies. The trans‐1,2‐bis(amido)cyclohexane (trans‐BAC) has been identified as a supramolecular motif with strong homochiral recognition to dire…