Materials Literature
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Smectite like layered silicates with cation exchange capacity ranges from 60 to 90 mequivalent/100g clay were synthesized from LiF, Mg(OH)2 and colloidal silica. The controlled cation exchange capacity achieved by changing the composition of the starting mixture (namely the added LiF amount) successfully influenced th…
The effect of mechanical stirring on the morphology of hexagonal layer‐structure birnessite nanoparticles produced from decomposition of KMnO 4 in dilute aqueous H 2 SO 4 is investigated, with characterization by X‐ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), high‐…
Since the last decade, most research focus in the fields of science and engineering has been dramatically shifted toward the same fashion from the investigation of traditional macroscale properties of materials to their atomic scale level (or called nanoscale). It is believed that the mechanical, electrical and therma…
The epoxy nanocomposites filled with 0.1, 0.5, and 1 wt% nanodiamonds (nanoD) were prepared and their properties were compared with neat epoxy network or epoxy nanocomposite filled with 1 wt% multiwalled carbon nanotubes (MWCNTs). The obtained nanoD-epoxy composites increased significantly thermal stability of prepare…
We report localized surface plasmon resonance (LSPR) of hexagonal Au nanodot arrays to detect changes in the thickness and conformation of poly[2-(methacryloyloxy)ethyltrimethyl ammonium chloride] (PMETAC) brushes.
High-yield bamboo-shaped carbon nanotubes (BCNTs) have been produced by using cresol as the precursor, for the first time and there are almost no straight CNTs or amorphous carbon found in the product: the role of cresol in promoting the growth of BCNTs is discussed; improved cycle stability and electric conductivity…
The luminescence of cerium(III) has been studied in aqueous solutions in the presence of acetate ion. In contrast to previous reports that cerium(III) carboxylate complexes do not luminesce, a weak emission is observed, which has a similar spectrum to the aquo cerium(III) species but a much shorter lifetime. Results f…
The cooperative self-assembly of oligothiophenes can be characterized by heterogeneous nucleation caused by trace amounts of impurities leading to a manifold of supramolecular arrangements.
A new approach for the fabrication of homogeneous single-walled carbon nanotube/polypyrrole composites is presented. Stable SWCNT dispersions were obtained using the electropolymerizable (11-pyrrolyl-1-ylundecyl)triethylammonium tetrafluoroborate as surfactant. For these dispersions, we used commercially available HiP…
Sputtered Ti thin-film electrodes have been anodized, both continuously and in an interrupted way, under galvanostatic conditions in up to forming voltages in the range of . The internal stresses developing in the anodic oxide film have been followed in situ during anodizing using a high-resolution curvature measureme…
The surface modification of a double-decker-shaped polysilsesquioxane (DDPSQ) film by deep ultraviolet (UV) irradiation (λ = 185 and 254 nm) was studied in the presence of atmospheric oxygen at room temperature. The change in the surface structure of a DDPSQ hybrid film was observed by means of contact angle measureme…
In this paper the results obtained in our previous studies on the reduction of nitrates by H2 over Pt–Ba/Al2O3 catalyst samples are presented and discussed along with new data recently collected in order to explain the chemistry that leads to nitrogen and ammonia evolution during the regeneration of Lean NOx Traps.
The synthesis and magnetic properties of three new members of a family of salicyaldoxime based [Mn6] single-molecule magnets possessing new structural types, core topologies and Mn oxidation state distributions are reported. The isostructural complexes [MnIII6O2(R-sao)6(X)2(EtOH)6] (R = Et, X = Br (1); R = Me, X = I (…
Hierarchical silica porous materials have been successfully synthesized using polystyrene nanospheres as macropore template, triblock copolymer Pluronic F127 as mesopore template, tetramethyl orthosilicate as silica source and ethanol as cosurfactant. The obtained materials were characterized by XRD, TG-DTA, N2 adsorp…
In this letter, we compare the performance of carbon nanotubes and optical interconnects with the scaled Cu/Iow-kappainterconnects for future high-performance integrated circuits. We present these comparisons in terms of both commonly used metrics, such as latency, energy per bit (power dissipation), as well as by dem…
The paper presents a product case study tracing the challenges of commercialization from research and product development to market launch. Envirox™ is a diesel fuel additive containing nanoparticles of cerium oxide, which enables fuel efficiency gains alongside reductions in harmful emissions such as black carbon (so…
A novel hybrid mesoporous material functionalized with carboxy groups was synthesized by self-assembly of a novel building block consisting of a cubic siloxane unit and a long organic chain with an ester bond and the following hydrolysis of ester bonds, representing a promising approach to designing hybrid structures…
As an approach using bistable nematic liquid crystals, we present a liquid crystal display with viewing angle control using two stable states, splay and 180 degrees-twist at pi cell, with three terminal electrode structures. The splay state is controlled by in-plane switching for a wide viewing angle (WVA), while the…
We describe here a new method permitting the one-step synthesis of ordered (lamellar phase) organosilicas highly functionalised with carboxylic acid or phosphonic acid groups. These materials were obtained by hydrolysis and polycondensation of monosilylated precursors cyanoalkyltrialkoxysilane (NC-(CH2)nSi(OR)3) and d…
Silica nanoparticles functionalized with chromogenic spirobenzopyran and thiourea subunits show selective colour changes in the presence of certain long-chain carboxylates.