Materials Literature
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Metal-organic frameworks (MOFs), also known as porous coordination polymers (PCPs), synthesized by assembling metal ions with organic ligands have recently emerged as a new class of crystalline porous materials. The amenability to design as well as fine-tunable and uniform pore structures makes them promising material…
Detonation nanodiamond (ND) is one of only a few nanomaterials that can be produced on an industrial scale. Unfortunately, the high content of non-diamond species in the detonation soot (e.g., amorphous and graphitic carbon, metal and metal oxides) prohibits a direct use of the as-produced material in most application…
We have fabricated and investigated IrMn3/Co2FeAl0.5Si0.5 stacks to meet the criteria for future spintronic device applications which requires low-temperature crystallisation (<250 °C) and a large exchange bias Hex (>500 Oe). Such a system would form the pinned layer in spin-valve or tunnel junction appl…
Abstract Five nickel complexes, [Ni 2 (3,4,5‐tmb) 4 (4,4′‐bpy)] ( 1 ), [Ni 2 (2‐ntc) 4 (4,4′‐bpy)] ( 2 ), [Ni(9‐atc) 2 (4,4′‐bpy)] ( 3 ), [Ni(3,4,5‐tmb) 2 ( t ‐bpee)] ( 4 ), and [Ni 2 (2‐ntc) 4 ( t ‐bpee) 2 ] ( 5 ) (3,4,5‐tmb=3,4,5‐trimethoxybenzoate; 2‐ntc=2‐naphthalenecarboxylate; 9‐atc=9‐anthracenecarboxylate; 4,4′…
(Ti,V)2AlC/Al2O3 solid solution composites were prepared by solid state combustion simultaneously incorporating reduction reactions of V2O5 and TiO2/V2O5 with aluminum. Two reaction systems composed of Ti–V2O5–Al–Al4C3 and TiO2–V2O5–Al–Al4C3 powder mixtures were studied. Combustion exothermicity was enhanced by increa…
Nanodiamond is a versatile nanomaterial with a broad range of applications. Its structure and surface termination is not only related to bulk diamond but also to the so-called diamondoids. The surface chemistry of nanodiamond is very rich, including the formation of C–C and carbon–heteroatom bonds. This enables the fi…
For small-angle X-ray scattering (SAXS) in solution, absolute intensity calibration is an important step to estimate the number of electrons of the sample. In this study, the excess scattering length of 1-bromododecane dispersed in dodecane was determined using that of 1-chlorododecane in the same solvent. The deviati…
Favourable conditions for the existence of the Griffiths phase in the La0.85Ca0.15MnO3 compound are experimentally investigated in terms of electronic and lattice structure by temperature-dependent x-ray absorption spectroscopy, valence band photoemission spectroscopy, and x-ray diffraction experiments. The chemical s…
A fully electronic variable optical attenuator in the near-infrared region is reported. The observed attenuation varied from 0 to 19.24 dB. The device is enabled by the strong correlation between the electrical and optical properties in vanadium dioxide thin films across its phase transition. A self-sensing feedback a…
Direct in situ visualization of nanoparticles in a liquid is an important challenge of modern electron microscopy. The increasing significance of bottom-up methods in nanotechnology requires a direct method to observe nanoparticle interactions in a liquid as the counterpart to the ex situ electron microscopy and indir…
The structure of silicate–phosphate glasses from the SiO 2 –P 2 O 5 –K 2 O–CaO–MgO–CuO system acting as slow release fertilizers, containing different amounts of copper ions replacing magnesium or calcium ions, was examined by DSC, XRD, 31 P, and 29 Si MAS–NMR techniques. The chemical activity of the glasses in the 2…
We report new self-assembled discotic liquid crystals exhibiting columnar mesophases at room temperature, which are constructed by intermolecular hydrogen bonding between the core of 1,3,5-trihydroxybenzene or 1,3,5-cyclohexanetricarboxylic acid and the peripheral molecules of isoquinoline derivatives. The mesomorphic…
Nanostructural transformations of silver nanoclusters occurring during their synthesis and after interaction with UV-light, Trapiella-Alfonso, Laura, Menéndez-Miranda, Mario, Costa-Fernández, José M, Pereiro, Rosario, Sanz-Medel, Alfredo
Nanoparticular MRI contrast agents are rapidly becoming suitable for use in clinical diagnosis. An ideal nanoparticular contrast agent should be endowed with high relaxivity, biocompatibility, proper plasma retention time, and tissue-specific or tumor-targeting imaging. Herein we introduce PEGylated KMnF3 nanoparticle…
Single crystals of (LuxGd1-x)2SiO5:Sm (0.5 at%) with x = 0.19 (81% Gd3+) and x = 0.11 (89% Gd3+) belonging respectively to the C2/c and P21/c space groups were grown by the Czochralski method under nitrogen atmosphere. Detailed investigation of their spectroscopic properties were performed with the aim of understandin…
A tomographic heating holder for transmission electron microscopy that can be used to study supported catalysts at temperatures of up to ~1,500°C is described. The specimen is placed in direct thermal contact with a tungsten filament that is oriented perpendicular to the axis of the holder without using a support film…
We have comprehensively studied the effect of nanoparticle selectivity on the self-assembly of symmetrical block copolymer (BCP) under cylindrical confinement using simulation and experiment. For the simulation, a coarse-grained molecular dynamics (CGMD) simulation has been utilized, and we investigated the confined a…
The solubilities of sodium metasilicate nonahydrate (Na 2 SiO 3 ·9H 2 O) in the NaCl–H 2 O, KCl–H 2 O, and NaCl–KCl–H 2 O systems were determined at the temperature range from (288.15 to 308.15) K using a dynamic method. The results show that the solubility of Na 2 SiO 3 ·9H 2 O decreases first and then levels off wit…
We report on angle-resolved magnetization measurements on NdFeAsO 0.65 F 0.35 (Nd-1111) single crystals. The field dependence of the critical current density, J c , is non-monotonic in these crystals at all orientations and temperatures due to the fishtail effect, which strongly influences the angular dependence of J…
Highly ordered Co80Pt20 nanowires (NWs) and nanotubes (NTs) have been synthesized by low cost DC electrochemical deposition method with constant stirring during the fabrication process in anodic aluminum oxide nano-templates with average pore diameter of about 200 nm. The structural and magnetic properties of nanostru…