Materials Literature
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Liquid crystalline assembly of rod-coil diblock copolymers blended with coil or rod homopolymers is investigated by dissipative particle dynamics simulation, considering systematically the effect of the interactions between rods and coils, the volume fraction and length of the added coil or rod homopolymers. The addit…
Graphene oxide (GO) flakes were self-assembled from solution on surfaces of self-assembled monolayers (SAMs), varying in the chemical structure of their head groups. The coverage density of GO relates to strength of attractive interaction, which is largest for Coulomb interaction provided by positively charged SAM hea…
The DC Conductivity and Differential Thermal Analysis of glasses with composition (30−x)Li2O⋅xV2O5⋅20Bi2O3⋅50B2O3(x=15, 10, 5) has been carried out in order to study the effect of replacing the Transition Metal Oxide (TMO) with alkali oxide. A significant increase in the DC conductivity has been observed with increase…
Two novel entangled POM-based coordination polymers have been successfully hydrothermally synthesized. Compound <bold>1</bold> presents an unprecedented 2D + 2D → 3D polypseudorotaxane motif, while compound <bold>2</bold> exhibits a self-catenated framework with multi-form helical chains. Photocatalytic experiments re…
Green’s function and the density of states of epitaxial graphene formed on the surface of a semiconductor are derived in the diagonal approximation. A graphene buffer layer on silicon carbide is considered in detail. It is assumed that, in the buffer layer, there are two types of states, specifically, states weekly an…
The 2:17 type Sm-Co sintered magnets were made with strips and ingots, separately. The phase structure and microstructure of the cast alloys and their effects on magnetic properties of the magnets have been comparatively studied. X-ray diffraction analysis shows that the phase structure of strips and ingots both consi…
New simple hydrogelators containing the structural features of cyclic amino acids were investigated for water gelation through H-bonds from carboxylic acids and amino groups, showing for the first time the use of a single amino acid as a hydrogelator. The hydrogels were used for the synthesis of Pt and Ir nanoparticle…
The fourth-order derivative spectra reveal the individual generation of photodichroism of non-aggregated and aggregated species of a liquid-crystalline azo-polymer.
Thin films of nanocrystalline Thallium doped Molybdenum heteropolyoxometalate (TlPMA) have been deposited on to glass and fluorine-doped tin oxide (FTO) coated glass substrates from aqueous acidic bath using simple chemical bath deposition technique. The different preparative parameters like concentration of bath, dep…
Matching the reactivities of S and Se, homogenously alloyed ultrathin sheets of CdS <sub>x</sub> Se <sub>1−x</sub> were obtained. The 5–6 monolayer thick nanosheets showed promising optical properties (e.g. quantum yield) relative to the binary compounds.
Perovskite ferroelectrics are an important class of functional ceramics. For more than 60 years they are well established materials for charge storage devices and all kinds of piezoelectric components. Increasing demands still drive their development, e.g. currently the quest for lead-free piezoelectric ceramics. Prop…
Owing to its unique graphitized basal plane nanostructure and intriguing physicochemical properties, graphene is considered as an ideal support for developing nanocomposites for various applications. In this study, a facile and general method was developed for the first time to synthesize a variety of semiconductor qu…
We report the fabrication of superhydrophobic Ag nanorods substrate using glancing angle deposition (GLAD) technique. The effect of substrate temperature of Ag nanorods on contact angle was explored. The SEM images clearly confirms the difference in the morphology of the Ag nanorods grown at varying substrate temperat…
The corrosion resistance of an Iron-based shape memory alloy (28 Mn: Fe–Mn–Si–Cr) was estimated by using wet and dry corrosion test. The structure of the rust formed on the alloy was examined via EELS (Electron Energy Loss Spectroscopy) using TEM (Transmission Electron Microscopy) analysis. The electrochemical behavio…
Reaction bonded silicon carbide (SIC) ceramics were successfully fabricated by gelcasting using a new non-aqueous, low-toxicity gel system based on the polymerization of a phenol-formaldehyde resin and furfuryl alcohol.
Development of dendritic grain structure and meso‑segregation leading to localized intergranular eutectic is simulated during directional solidification of an Al ‑ 3.5 wt% Ni alloy with two pulling velocities (4 μm s–1 and 8 μm s–1) using a two‑dimensional (2D) Cellular Automaton – Finite Element (CAFE) model. 2D CAFE…
Controlling the pore structure of metal oxide films and supported catalysts is an essential requirement for tuning their functionality and long-term stability. Typical synthesis concepts such as “Evaporation Induced Self Assembly” rely on micelle formation and self assembly. These processes are dynamic in nature and t…
A new class of benzimidazole-carbazole- <italic>N</italic> -glycosylamines were synthesized and self-assembled through non-covalent interaction into mechanically and thermally stable organogels with nanofibrous morphology.
Hierarchical hollow tungsten trioxide spheres (HHTTS) prepared using sacrificial template methods have been used as the support of Pd nanoparticles. The resultant Pd/HHTTS catalyst exhibits low onset potential, a large electrochemical surface area, excellent catalytic activity and stability compared with Pd/C due to t…
Based on a space folding transformation, we propose a new way to hide an object in full space, namely, to cover-up the scattering of the hidden object with the scattering of a background object so that only the scattering of the background object can be detected by an outside observer and the hidden object disappears…