Materials Literature
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This manuscript introduces 7Li{6Li} spin echo double resonance (SEDOR) spectroscopy as a novel approach for studying the spatial distribution of lithium ions in solid electrolytes. Theoretical simulations using density operator theory as well as experimental validation on the model compound lithium carbonate reveal th…
The microstructure and superplastic behavior at 450°C and 500°C in Cu-Al-Mn-based shape memory alloys were investigated using optical microscopy and a tensile test. It was found that a fine α (fcc) + β (bcc) two-phase structure with a grain size of 3 μm in diameter can be obtained in Cu-Al-Mn-Ni alloy by annealing at…
For short-term cardiovascular application, segmented polyurethanes (SPUs) based on 4,4-methylenebis(cyclohexyl isocyanate) (HMDI), polytetramethylenglycol (PTMG) and 1,4-butanediol (BD) were synthesized and characterized by spectroscopy (FT-IR, (1)H-NMR) and thermal (TGA, DMA, DSC) and mechanical techniques. The segme…
Solid-state NMR investigations of nacre reveal the presence of an amorphous surface layer around the aragonite platelets. This surface layer contains hydrogen carbonate groups, presumably at its outer surface and water molecules slightly hindered in their mobility in a proton ratio of 1 : 33, i.e. about 16 water molec…
The synthesis, crystal structure and physical properties of two new BEDT-TTF charge-transfer salts containing the tris(oxalato)ferrate(III) anion are described. The most commonly found tris(oxalato)metallate(III) salts of BEDT-TTF contain alternating layers of BEDT-TTF cations and tris(oxalato)metallate anions, but th…
Cadmium sulfide nanoparticles stabilized by both natural and unnatural 5′-nucleotide triphosphates were investigated to elucidate the specific chemical functionalities involved in the synthesis of emissive materials. The roles of the nucleobase functionalities in semiconductor nanocrystal synthesis are deconvoluted us…
A full-interaction electromagnetic approach is applied to interpret the local- and far-field properties of AuAg alloy nanoplanets (i.e. a central cluster surrounded by small "satellite" clusters very close to its surface) fabricated in silica by ion implantation and ion irradiation techniques. Optical extinction spect…
In this study, the accumulative roll-bonding (ARB) process is used to reduplicate Al (1100)/Mg (AZ31) alloy and then made thinner and longer by multi-rolling. Stacks with 24 layers were created and annealed at 300°C for 1 h. The microstructures were observed by using optical microscopy. The diffusion couples between A…
We have fabricated a microreactor incorporating vertically-aligned carbon nanotubes supporting Pt nanoparticles and found that the presence of aligned nanotubes significantly enhances the catalytic reaction and extends the catalyst lifetime as compared with conventional microreactors using a Pt metal film or Pt nanopa…
Donor–acceptor purines have been prepared that show near unity fluorescence quantum yields in organic solution, a step toward using simple biorelevant heterocycles in optoelectronic and photonic applications.
Core–shell nanoparticles based on metallic ReO3 nanoparticles have been prepared for the first time. The nanoparticles with the metallic shell viz. ReO3@Au and ReO3@Ag were prepared by the reduction of metal salts over ReO3 nanoparticle seeds. ReO3@SiO2 and ReO3@TiO2 core–shell nanoparticles were prepared by the hydro…
We describe the selective measurement of extracellular glutamate concentration in rodent brain using ceramic-based platinum microelectrode arrays (MEAs) coated with electropolymerized, over-oxidized polypyrrole (OPP) as a permselective barrier to interference from dopamine and ascorbate. OPP-coated MEAs displayed simi…
Unusual gelation of a number of organic solvents by allyl cholate and other simple esters of cholic acid is reported. These gels were characterized by SEM, AFM, polarizing optical microscopy (POM), X-ray powder diffraction and other techniques. Electron micrographs of the xerogels revealed the presence of highly entan…
Nickel multiwalled carbon nanotube (MWCNT) composite plating was studied using a sulfamate-based bath. The effects of additives, current density, and bath temperature on the microstructure of Ni-MWCNT composite films were examined. The content of MWCNTs and internal stress of the composite films were also investigated…
Colloidal quantum dots (QDs) are now commercially available in a biofunctionalized form, and Förster resonance energy transfer (FRET) between bioconjugated dots and fluorophores within the visible range has been observed. We are particularly interested in the far-red region, as from a biological perspective there are…
Bismuth ruthenate and erbia-stabilized bismuth oxide (ESB) composites were studied as prospective cathode materials for solid oxide fuel cells (SOFCs) operating at intermediate temperatures (IT). Phase chemistry between bismuth ruthenate and ESB was studied using differential thermal analysis and X-ray diffraction (XR…
Self-cleaning surfaces have received a great deal of attention, both in research studies and commercial applications. Both transparent and non-transparent self-cleaning surfaces are highly desired, as they offer many advantages and their potential applications are endless. As in many other cases, also in the case of s…
The present investigation aims to establish an environmentally safe condition for felt- and shrink-proofing of wool fibres. This has been performed by using the ‘hydrogen peroxide/tetraacetyl ethylene diamine’, or ‘hydrogen peroxide/nonanoyl benzene sulphonate’ system to liberate the respective organic peracids. The i…
At present chemical (AOPs) and electrochemical (EAOPs) advanced oxidation processes with ability to destroy organic pollutants in waters are being developed. These methods are based on the production of hydroxyl radical ( OH) as oxidant. In AOPs OH radical can be obtained from Fenton's reaction between Fe 2+ and H 2 O…
Cu(1+)-clusters on a CeO(2) support, which were prepared by hydrothermal synthesis using cetyltrimethylammonium bromide (CTAB), were found to be highly active and selective for preferential oxidation (PROX) of CO in excess H(2) with H(2)O and CO(2) under practical fuel-cell operating conditions.