Materials Literature
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Two rarely seen 2D coordination polymers based on huge 36-metal pure lanthanide clusters, {[Gd36(NA)36(OH)49(O)6(NO3)6(N3)3(H2O)20]Cl2·28H2O}n (1) and {[Dy36(NA)36(OH)49(O)6(NO3)6(N3)3(H2O)20]Cl2·28H2O}n (2) (HNA = nicotinic acid), were synthesized and structurally characterized. The spherical Ln36 skeleton can be vie…
Nanowhiskers of crystalline polysaccharides, including cellulose and chitin, have recently been attracting much attention, especially as rigid filler components of novel nanocomposite materials. Good dispersion of these nanowhiskers in aqueous suspensions, which are usually prepared by appropriate acid hydrolysis of n…
Green-emitting phosphor Eu2+ doped NaBaScSi2O7 was synthesized by a solid-state reaction, and the photoluminescence properties were investigated in conjunction with a structural analysis. The crystallographic occupancy of Eu2+ in the Sc silicate NaBaScSi2O7 matrix was studied based on the Rietveld refinements results…
Nanogels based materials have high drug loading capacity, biocompatibility, and biodegradability which are the key points to design a drug delivery system effectively. The pursuit of this review article is to concisely describe the recent development of nanogel drug delivery system in terms of drug loading and swellin…
Photoelectrical properties of Tl1-xIn1-xSnxSe2 single crystalline alloys (x = 0, 0.1, 0.2, 0.25) grown using the Bridgman-Stockbarger method were studied. The temperature dependence of electrical and photoconductivity for the Tl1-xIn1-xSnxSe2 single crystals was explored. It has been established that photosensitivity…
ZnO based varistors are widely used for overvoltage protection in many electrical and electronic circuits, at voltages ranging from a few to over a million volts. By careful control of the microstructure, through nano-structuring by chemical routes, it should be possible to produce varistors with high breakdown voltag…
This article presents a facile approach for the preparation of durable and robust superhydrophobic textiles by simply dip coating in a nanocomposite solution of fluoro-free organosilanes. The superhydrophobic textiles exhibit good water repellency and excellent mechanical, chemical and environmental stability.
Many technological nanomaterials are intentionally 'doped' by introducing appropriate amounts of foreign elements into hosts to impart electronic, magnetic and optical properties. In fact, impurity doping was recently found to have significant influence on nucleation and growth of many functional nanocrystals (NCs), a…
A new tool to elucidate chemical bonding in bulk solids, surfaces and nanostructures has been developed. Solid State Adaptive Natural Density Partitioning (SSAdNDP) is a method to interpret chemical bonding in terms of classical lone pairs and two-center bonds, as well as multi-center delocalized bonds. Here we extend…
This work is mainly focused on investigating the influence of preparation methods on the physicochemical and catalytic properties of CuO–CeO2 catalysts for NO reduction by CO model reaction. Five different preparation methods have been used to synthesize CuO–CeO2 catalysts: mechanical mixing method (MMM), impregnation…
We developed a facile hydrothermal method for synthesizing ultrafine size-controllable earth-abundant Cu2ZnSnS4 (CZTS) nanocrystals using simple Cu(II), Zn(II) and Sn(II) inorganic salts and thiourea in a mixed ethylenediamine and di-water solution as precursors. X-ray diffraction, Raman scattering and transmission el…
To grow precisely aligned graphene on h-BN without metal catalyst is extremely important, which allows for intriguing physical properties and devices of graphene/h-BN hetero-structure to be studied in a controllable manner. In this report, such hetero-structures were fabricated and investigated by atomic resolution sc…
The direct use of cellulose to fabricate materials such as common plastics as synthetic polymers has hardly been investigated. In the present paper, bioplastics of a new class are constructed, for the first time, by hot-pressing cellulose hydrogel, and are different from common plastics in terms of their processabilit…
A red-emitting phosphor, Eu2+-activated Ca4(PO4)2O phosphor was synthesized by conventional solid-state reaction. X-ray powder diffraction confirmed the phase formation. The band gap of Ca4(PO4)2O was estimated to be about 4.75 eV from the diffuse reflection spectrum. The excitation and emission spectra, and the conce…
A two-dimensional pyramidal shape metamaterial-based absorber composed of multiple alternating metallic and dielectric thin films is proposed. This pyramid metamaterial absorber is a broadband, wide-angle, omni-directional and polarization-insensitive light absorbing device. The absorption performance of the absorber…
A facile hydrothermal method was used to synthesize luminescent carbon dots from single-walled carbon nanotubes (SWNTs). Then 4,7,10-trioxa-1,13-tridecanediamine (TTDDA) was grafted onto the carbon dots to increase their water solubility and luminescent properties. The as-prepared carbon dots were characterized by UV-…
Highly porous carbons with different textural properties were obtained in only one step by means of simple heat-treatment of organic salts of Na, K or Ca. The pore characteristics were tuned from a microporous to a mesoporous carbon by simply choosing the appropriate organic salt.
Colloidal Mn3O4 nanocrystals supported by graphene oxide (GO) and reduced graphene oxide (RGO) (Mn3O4/GO and Mn3O4/RGO nanocomposites) have been fabricated through a facile synthetic route with ultrasonic-assisted in ethanol amine (ETA)-water system. It is proposed that in the formation mechanism of these intriguing n…
A series of iso-structural green-emitting Na3(Y,Sc)Si3O9:Eu2+ phosphors with different Y/Sc ratios have been synthesized by a solid-state reaction. All of the phosphors exhibited strong broad absorption bands in the near ultraviolet (n-UV) range, and gave bright green emission upon 365 nm excitation light. As for the…
A highly stable p-type cuprous oxide (Cu2O) photoelectrode has been fabricated by direct anodization of the Cu foil, followed by a thermal treatment to introduce a protective layer of copper oxide (CuO) nanowires penetrating the surface of the Cu2O layer. The anodized Cu2O served as the seeding sites for the growth of…