Materials Literature
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We present the preparation and characteristics of liquid-phase sensors based on nano-porous silicon multilayer structures for determination of organic content in gasoline. The principle of the sensor is a determination of the cavity-resonant wavelength shift caused by refractive index change of the nano-porous silicon…
We present a quantitative study on the growth of multilayer epitaxial graphene (EG) by solid-state decomposition of SiC on polar (c-plane Si and C-face) and non-polar (a and m planes) 6H-SiC faces, with distinctly different defect profiles. The growth rates are slower than expected from a mechanism that involves Si lo…
The photodissociation and recombination of CO and 1-methylimidazole (Im) from iron protoporphyrin IX (FePP-ImCO) dissolved in a 30% v/v aqueous solution of Im was studied using ultrafast optical transient absorption (TA) and X-ray transient absorption (XTA) spectroscopies. FePP-ImCO was shown to lose the CO ligand upo…
The imperative of secondary corrosion response evaluation in real-time to prevent catastrophic failure in service continues to be at forefront of research efforts. In this paper, electrochemical polarisation response of mild steel in acid and seawater media was studied. Specially prepared mild steel plate coupons were…
Ethylene-propylene-diene monomer rubber (EPDM)-based ground wastes (W-EPDM) are reutilized as rubber matrix in plug material compounds for automotive applications. Production scraps of target product are ground to 35, 40 and 60 mesh in ambient conditions. Effect of particle size and the amount of W-EPDM is studied. A…
Coordination chemistry was applied to deposit pyridine-functionalized gold nanoparticles on silicon substrates. The particles were synthesized through the Brust/Schiffrin route with a subsequent ligand exchange reaction yielding well-defined particles of two different sizes. Multilayer deposition was carried out on a…
Electrically conductive elastomeric nanocomposites containing carbon nanotubes (CNT) and polyaniline (PANI) are reported in the present investigation. The synthesis procedure included an in situ inverse emulsion polymerization of aniline doped with dodecylbenzene sulfonic acid (DBSA) in the presence of CNT and dissolv…
The combined effects of an organically modified montmorillonite (OMMT) and an intumescent flame retardant, poly (piperazine spirocyclic pentaerythritol bisphosphonate) (PPSPB), in (low‐density polyethylene)/[ethylene‐(vinyl acetate) copolymer] (LDPE/EVA) nanocomposites were observed. The results from X‐ray diffraction…
The electric field enhancement of the silver spongelike networks has been described to be a systematic investigation by using three-dimensional finite-difference time-domain (3D-FDTD) simulation. Surface enhanced Raman scattering (SERS) measurements have indicated that the junction regions, the hollow nanostructured,…
The long‐term behavior of high‐level nuclear glass subjected to alpha/beta radiation by long‐life radionuclides must be investigated with respect to geological disposal. This study focuses on the effects of alpha and beta radiations on the chemical reactivity of R7T7 glass with pure water, mainly on the residual alter…
In this letter, it is demonstrated the ability of the magnetoacoustic technique in detecting the magnetocaloric effect in gadolinium thin films (1.0 μm and 3.0 μm thick), which is not accessible through conventional temperature sensors because of the reduced mass of the samples. The method, which detects the direct ef…
ADVERTISEMENT RETURN TO ISSUEPREVNoteNEXTA Spherulitic Morphology Study of Crystalline/Crystalline Polymer Blends of Poly(ethylene succinate-co-9.9 mol % ethylene adipate) and Poly(ethylene oxide)Mengting Weng and Zhaobin Qiu*View Author Information State Key Laboratory of Chemical Resource Engineering, Key Laboratory…
The phyto-components of Calotropis procera leaves were screened by qualitative and gas chromatography-mass spectroscopy (GC-MS) analysis. C. procera R.Br. is a perennial plant abundantly found in all parts of the country (India) and wild in nature. The leaves of the plant were found to contain various primary and seco…
To quantitatively evaluate the effect of maleic anhydride grafted polypropylene (MAPP) as a coupling agent on interfacial compatibility between wood and polymer in wood/polypropylene (PP) composite, the dielectric constant and dielectric loss factor were measured for poplar (Populus tomentasa Carr.) wood flour/polypro…
TlGa1 − x Er x S2 (x = 0, 0.001, 0.005, 0.01) solid solutions, based on the layered compound TlGaS2, have been prepared by direct elemental synthesis. The effect of Er concentration on the dielectric and optical properties of the TlGa1 − x Er x S2 solid solutions has been studied. The results demonstrate that increasi…
Energising a transformer with other adjacent transformers in service may induce sympathetic inrush that could lead to long duration voltage dips. This study addresses this issue through analysing voltage dip events observed on a 400/132 kV grid when energisations of several generator step‐up transformers were performe…
Charge and polarization modulations in Fe3 O4 are controlled by taking advantage of interfacial strain effects. The feasibility of oxidation state control by strain modification is demonstrated and it is shown that this approach offers a stable configuration at room temperature. Direct evidence of how a local strain f…
Nanoporous gold wire arrays were fabricated by a simple and straightforward template-free method from ionic liquid. The electrodeposition of AuZn nanowires was coupled with the galvanic metal displacement of the zinc in the wires by gold, creating the final nanoporous gold wire arrays.
For centuries, chirality has been appreciated as a key component in understanding how matter orders. While intuitively chiral particles can self-assemble into chiral superstructures, it is often less obvious how achiral particles can do the same. Here we show that there is a potentially general, packing-based mechanis…
Abstract Extraction of sugar from sugar beets is a process optimized over decades based on experience gathered during production. This process improvement is achieved without any systematic approach for optimization which raised the question whether such a mature process can be further optimized effectively, applying…