Materials Literature
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Three sandwich-type inorganic–organic hybrid solids based on iso-polyvanadate cluster, {V 4 O 12 } 4–, {H 2 V 6 O 18 } 4–, or {H 2 V 10 O 28 } 4–, and decamethylcucurbit[5]uril (Me 10 CB[5]) have been synthesized under hydrothermal conditions. In the structures of (NH 4 ) 4 [(V 4 O 12 )·(Me 10 CB[5]@0.5H 2 O) 2 ]·∼15H…
A facile method for preparing nickel hydroxyl nanoparticles loaded graphene aerogels has been established. The prepared aerogels were characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy and Raman spectroscopy. Their applications as…
Abstract Subporphyrin B‐peroxides have been synthesized in good yields by acid‐catalyzed exchange reactions of subporphyrin B‐methoxide with the corresponding hydroperoxides. Thermal dimerization of the subporphyrin B‐hydroperoxide provided the peroxo‐bridged bis(subporphyrin) quantitatively. These subporphyrin B‐pero…
Structuring ionic solids at the nanoscale with block copolymers (BCPs) is notoriously difficult due to solvent incompatibilities and strong driving forces for crystallization of the inorganic material. Here, we demonstrate that elucidating pathway complexity in the BCP-directed self-assembly of an ionic solid, amorpho…
The emergence of the electron-pocket-only iron-based superconductor ${A}_{x}\mathrm{F}{\mathrm{e}}_{2\ensuremath{-}y}\mathrm{S}{\mathrm{e}}_{2} (A=\mathrm{alkali}\phantom{\rule{0.28em}{0ex}}\mathrm{metal})$ challenges the Fermi-surface nesting picture established in iron pnictides. It was widely believed that magnetis…
The plasmonic response of nanoshells with different geometries is calculated using effective medium theory (EMT). The cases of multishell nanospheres, spheroids, and nested nanocubes are investigated. The model is extended to include radiation and nonspherical geometries to study confocal and nonconfocal ellipsoidal n…
An investigation of the model of porous silicon in the form of periodic set of silicon nanowires has been carried out. The electronic energy structure was studied using a first-principle band method-the method of pseudopotentials (ultrasoft potentials in the basis of plane waves) and linearized mode of the method of c…
Ligand-protected gold (Au-L) nanoclusters have attracted much attention due to their unique properties, and the superatom concept as a significantly well-known concept to explain the electronic stability was suggested. Although there has been a lot of major progress in this field, size evolution of the superatom is st…
The effect of specific surface area (SSA) and the purity of Fe2O3were investigated while evaluating the raw material of Sr-hexaferrite preparation. For anisotropic hard ferrite, both SSA and purity of Fe2O3were found, which markedly affect the grain growth and the magnetic properties. Increase of SSA in Fe2O3resulted…
A series of cardo poly(ether sulfone imide)s (PESI-C) containing bulky phthalide groups were prepared via aromatic nucleophilic substitution reaction of phenolphthalein with 4,4′-difluorodiphenyl sulfone and 4,4′-bis(4-fluorophthalimido)diphenyl ether (BFPI). The glass transition temperatures and 5% weight loss temper…
NIST in Boulder, CO investigated the correlations between impact test results obtained from standard, full-size Charpy V-notch (CVN) specimens and specimens with reduced thickness (subsize Charpy V-notch specimens (SCVN)) or reduced or scaled cross section dimensions (miniaturized Charpy V-notch specimens (MCVN)). A d…
Iijima's 1991 discovery brought to the attention of the research community a new allotrope of carbon: carbon nanotubes (CNTs).Since then CNTs have been extensively studied and have demonstrated to be of great potential in various industrial and biomedical fields of application [1].CNTs can be described as rolled-up sh…
Abstract A tri-layered composite structure of gold/ZnS/gold, with the top gold layer patterned into a periodic array of circular holes, was fabricated by laser interference lithography and lift-off processes. This plasmonic composite absorbing structure showed a series of enhanced absorption peaks across the visible t…
A series of metal cation modified layered-double hydroxides (LDHs) and mixed oxides were prepared and used to be the selective oxidation of toluene with O2. The results revealed that the modified LDHs exhibited much higher catalytic performance than their parent LDH and the modified mixed oxides. Moreover, the metal c…
Abstract New iron(II) coordination polymers with solvent‐dependent spin‐crossover behaviour have been synthesised by using an N2O2 Schiff base like ligand and 4,4′‐dipyridylethyne as the bridging axial ligand in different solvents. The effects of different solvents and preparation methods (temperature, concentration)…
Abstract A periodic mesoporous organosilica (PMO) that contains ethylene bridges was functionalized to obtain a series of cooperative acid–base catalysts. A straightforward, single‐step procedure was devised to immobilize cysteine and cysteamine on the support material by means of a photoinitiated thiol‐ene click reac…
Diameter control in the synthesis of single-walled carbon nanotube (SWNT) arrays is vital to the control of their properties and their integration into practical devices. Controlling the size of catalyst nanoparticles (NPs) and following a tangential nucleation mode has been shown to be an effective approach to diamet…
Abstract A Magnetic mFe3O4‐l‐dopa‐CuII/SnIV@micro‐mesoporous‐SiO2 catalyst was successfully prepared. The catalyst exhibits high and stable catalytic activity for the Baeyer–Villiger oxidation reaction with air as oxidant. Furthermore, the selectivity can reach nearly 100 %. Meanwhile the catalyst can be easily separa…
Electrospinning of sulfur-free softwood lignin (SFSL) in N,N-dimethylformamide (DMF) is reported as is and with poly(ethylene oxide) (PEO). SFSL macromolecules behave as rigid spheres, instead of free draining macromolecules in DMF. Hence they are investigated as colloids. Colloidal SFSL generates uniform fibers only…
${\mathrm{NiS}}_{2\ensuremath{-}2x}{\mathrm{Se}}_{x}$ is revisited to determine the magnetic structure using neutron diffraction and magnetic representational analysis. Upon cooling, the insulating parent compound, ${\mathrm{NiS}}_{2}$, becomes antiferromagnetic with two successive magnetic transitions. The first tran…