Materials Literature
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We investigated the important factors that control the structure of polymeric particles fabricated from emulsion templates. We found that the most energetically stable structure predicted by interfacial energy analysis is not always achieved. The slow dynamics due to an increase in the viscosity of the emulsion phases…
The design of nanometric electronic devices requires novel materials for improving their electrical performance from stages of design until their fabrication. Until now, several DC electrical conductivity models for composite materials have been proposed. However, these models must be valued to identify main design pa…
The interaction and corrosion inhibition properties of methyl carbamate on copper metal in 1 N HNO3 have been studied by polarization, electrochemical impedance spectroscopy (EIS), adsorption, surface studies and computational calculations at 300 K. Polarization studies showed that methyl carbamate act as a cathodic t…
The determination of anisotropic magnetic parameters is a task of both experimental and theoretical interest. The added value of theoretical calculations can be crucial for analyzing experimental data by (i) allowing assessment of the validity of the phenomenological spin Hamiltonians, (ii) allowing discussion of the…
To examine the solvent-free effect in electrospun micro/nanofibers on cellular activities, melt-electrospun poly(lactic acid) (PLA) micro/nanofibers with a diameter of 1.5 ± 0.8 μm and a randomly distributed mesh structure were successfully fabricated with a gas-assisted melt-electrospinning system. Pre-osteoblast cel…
Three novel boron dipyrromethene (BODIPY) derivatives containing tetraphenylethene (TPE) with emissions ranging from orange to red were synthesized and characterized. Spectroscopic properties of the dyes in various solvents and in the solid state have been investigated. They all exhibit high fluorescence intensity in…
The transfer of chromium from metallic components into the cathode of a solid oxide fuel cell (SOFC) can severely degrade its performance and is known as 'chromium poisoning'. In this study we investigate the relationship between the amount of chromium introduced into La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3-δ , LSCF (6428), c…
Due to their poor frequency stability and high dielectric loss compared to common energy storage ceramics, bismuth strontium titanate ceramics are rarely employed for energy storage. This paper systematically researches the energy storage characteristics of Sr(1-1.5x)BixTiO3 ceramics. The bismuth strontium titanate ce…
Nanoporous gold freestanding films (NPG FSFs) have been fabricated via overgrowth of gold onto self-assembled monolayers of gold nanocrystals at planar fluid–fluid interfaces. The resulting NPG FSFs are ligand-free on their surfaces and their sizes can be as large as several cm2. The NPG FSFs are fairly mechanically r…
A new blue-green emitting phosphor Ca12Al14O33Cl2:Eu2+,Mn2+ has been synthesized by the solid-state reaction technique method under a reductive atmosphere. The X-ray diffraction measurement results indicate that the crystal structure of the phosphor is a single phase of Ca12Al14O33Cl2. The phosphors can be efficiently…
A facile approach to fabricate novel highly microporous carbons has been developed by direct carbonization of lowly cross-linked polystyrene. The as-prepared highly microporous carbons demonstrate unusually high micropore rate (97%), high surface area (1108 m(2) g(-1)) and uniform pore size distribution, and thus exhi…
Metal nanoparticles have recently emerged as ubiquitous surface-enhanced Raman scattering (SERS) agents for nano-imaging and nano-analysis. These applications make use of the unique optical properties of metal nanoparticles to enhance the efficiency of Raman scattering, whereas the small size of the nanoparticles loca…
The application of carbon nanotubes (CNTs) in many different fields, e.g. in materials chemistry or in bio-nanomedicine, does require their surface derivatization to overcome the low solubility in organic or aqueous media. CNTs PEGylation, viz. the attachment of polyethylene glycol chains to the nanotubes, is rapidly…
Composites of multi-walled carbon nanotubes (MWCNT) and polyoxometalates (POM) were developed for electrochemical capacitors (EC). Two types of POM clusters, PMo 12 O 40 3− (PMo 12 ) and PMo 10 V 2 O 40 5− (PMo 10 V 2 ), were deposited onto MWCNT in single or double layers via layer-by-layer deposition. Charge storage…
Nano-dumbbells via electrospinning: controllable nano-dumbbells are fabricated via electrospinning. The weight block parts and the length of nanowires between them can be adjusted through changing the experimental conditions. This nanostructure enables ultralow-limit gas sensing properties of the resulting polypyrrole…
Simultaneous reduction and functionalization of graphene oxide was conducted with the assistance of microwave irradiation. A titanate coupling agent was utilized for the functionalization of graphene. TEM, XPS and FTIR were employed to characterize the changes in graphene morphology and chemistry. The results suggeste…
While organic micro/nanostructures for optoelectronic applications have attracted increasing recent attention, the assembly of aligned micro/nanostructure arrays continues to be a challenge. Herein, a one-dimensional (1D) microbelt has been fabricated by a hydrogen bonding assembly strategy with guanidinium cations an…
Photophysical and photochemical measurements have been made on a series of novel alpha octa(alkyl-substituted) silicon, zinc and palladium phthalocyanines for which the synthesis is outlined. Fluorescence quantum yields and lifetimes, triplet quantum yields and lifetimes and singlet delta oxygen quantum yields were me…
In this work, a single ramie fiber was firstly treated with various surface modification agents including alkali, silane, maleic anhydride and acetic anhydride. Then single fiber fragmentation was carried out to evaluate the interfacial interaction between the fiber and poly(butylene succinate) (PBS) matrix by means o…
Two novel functional aromatic polyimides (PIs), 6F-αNA PI and 6F-βNA PI, in which the hexafluoroisopropylidene-diphthalic anhydride (6FDA) serves as the electron-accepting unit and the diphenylnaphthylamine (DPNA) functions as the electron-donating species, were synthesized for memory device applications. The 6F-αNA P…