Materials Literature
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Microwave irradiation combined with mild heating was demonstrated as a suitable synthetic method for the preparation of NiCo2O4 nanowires and NiCo2O4–graphene oxide nanocomposites. In both cases, the synthesis was carried out in just a few minutes, at relatively low temperatures and with a certain economy of reagents.…
We investigated a multilayer graphene-dielectric composite material, comprising graphene sheets separated by subwavelength-thick dielectric spacer, and found it to exhibit hyperbolic isofrequency wavevector dispersion at far- and mid-infrared frequencies, allowing propagation of waves that would be otherwise evanescen…
Silver nanoparticle (Ag NP) dissolution, or ionization from Ag(0) to Ag+, is an important determinant of the nanoparticles' toxicity as silver ions are considered to be a major contributor to Ag NP cytotoxicity. In this work, we characterize ion dissolution from Ag NPs using a selective and dynamic technique, Ag+-sele…
The effect of hydrostatic pressure (HP) on the corrosion behavior of low alloy steel in 3.5% NaCl was studied in a pressure vessel using gravimetric, electrochemical and imaging techniques. The results indicate that HP influences the corrosion behavior of steel to different extents all through the immersion period: in…
A new series of azobenzene-dimers were synthesized and doped into the blue phase liquid crystals to broaden the temperature range of BPs. It is found that not only can the reflection wavelength of BPI be reversibly controlled but BPI can also be transformed into the cholesteric phase owing to isomerization of azobenze…
Ni0.25Co0.75(OH)2 hierarchical nanowire@nanoplatelet arrays were prepared by an in situ conversion from Ni0.5Co1.5(OH)2CO3 nanowire arrays in a highly concentrated basic solution at room temperature. These unique hierarchical nanoarrays showed a 7 times larger areal capacitance and better rate capability than the prec…
The shortest ever recorded and enhanced 204.5 nm ultraviolet (UV) upconversion (UC) emission from 6G7/2 levels of Gd3+ ions was observed in NaLuF4:20%Yb3+,2%Ho3+,20%Gd3+ microcrystals (MCs) under 980 nm near infrared (NIR) excitation for the first time. The 6GJ levels of Gd3+ ions can be efficiently populated by the e…
Crumpled nitrogen-doped graphene–ultrafine Mn3O4 nanohybrids (CNGMNs) were synthesized through a one-step strategy under hydrothermal conditions for promising application as supercapacitor materials. Doping of N atoms in the lattice of graphene and anchoring of Mn3O4 nanoparticles on graphene sheets were achieved conc…
The field of nanoscience has produced more hype than probably any other branch of materials science and engineering in its history. Still, the potentials of this new field largely lay undiscovered ahead of us; what we have learnt so far with respect to the peculiarity of physical processes on the nanoscale is only the…
The toxicity of three nanoparticles, silver (AgNP, 20 nm), silicon oxide (SiO 2 NP, 11-14 nm) and titanium oxide (TiO 2 NP, 20 nm), to the root-knot nematode, Meloidogyne incognita , was studied in laboratory and pot experiments. Application rates of all nanoparticles were 1.5, 3, 6, 12.5, 25, 50, 100, 200, 400 and 80…
The Eu(2+) → Tb(3+) → Sm(3+) energy transfer scheme has been proposed to realize the sensitization of Sm(3+) ion emission by Eu(2+) ions. Following this energy transfer model, near-UV convertible Sm(3+)-activated orange phosphors have been obtained in Sr3Y(PO4)3:Eu(2+), Tb(3+), Sm(3+) powders.
An AIPE-active iridium(III) complex was found to possess high specificity for mitochondria, superior photostability, low cytotoxicity, and high resistance to the loss of mitochondrial membrane potential. Thus, this complex can be used for mitochondrial imaging and tracking in living cells.
A highly efficient upconversion-C60 nanoplatform was demonstrated for NIR imaging-guided photodynamic therapy of cancer.
A thermoelectric thin-film device consisting of n-type Bi2Te3 and p-type Sb2Te3 thin-film legs was prepared on a glass substrate by using co-evaporation and annealing process. The Seebeck coefficient and the power factor of the co-evaporated Bi2Te3 film were −30 µV/K and 0.7 × 10−4 W/K2·m, respectively, and became sub…
In this study, synthesis of novel nitrogen-containing mesoporous carbons with the use of both colloidal silica as a template and chitosan as a new promising carbon precursor was performed. The prepared materials were characterized by adsorption of nitrogen, high-resolution transmission electron microscopy (HR-TEM), sc…
Pre-introducing an extra carbon source into the porous aromatic framework of PAF-1 followed by thermolysis affords a new microporous carbon material, which demonstrates a CO2 uptake capacity of 93 cm(3) g(-1) (equivalent to 4.1 mmol g(-1) or 18.2 wt%) at 295 K and 1 bar.
Mononuclear complex Co(hpbdti)2·3CH3OH (1) was synthesized [hpbdtiH = 2-(2-hydroxyphenyl)-4,5-bis(2,5-dimethyl(3-thienyl))-1H-imidazole], showing multiple-step field-induced slow magnetic relaxation behaviors, and photochromic properties in CH2Cl2-CH3CN solution.
Trivalent lanthanide ions (Ln(3+))-doped inorganic nanoparticles (NPs) as potential luminescent bioprobes have been attracting tremendous interest because of their unique upconversion (UC) and downconversion (DC) luminescence properties. NaScF4, as an important host material, has been rarely reported and its crystal s…
Conducting polymers are at the forefront of nanomaterial's research but the fundamental mechanisms that govern the formation of functional nanostructures and control their electromagnetic (EM) properties are still unknown. Herein, we report for the first time a detailed correlation between acquired morphology, structu…
In this paper, inverted hybrid solar cells (HSCs) with planar heterojunction (PHJ) and n–i structure are fabricated from an aqueous-solution-processed poly(p-phenylenevinylene) (PPV) precursor and 2-mercaptoethylamine (MA)-stabilized CdTe nanocrystals (NCs). Firstly, one densely stacked, smooth CdTe film with a wide a…