Materials Literature
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The structure and magneto-dielectric properties of Sm2NiMnO6 double perovskite have been investigated. The pure monoclinic bulk phase of Sm2NiMnO6 is an intrinsic B-site disordered ferromagnet showing a second order magnetic phase transition ∼157 K, along with a low temperature re-entrant spin glass-like transition (∼…
Annular rings with controllable sizes are successfully created on the surface of COOH-functionalized mesoporous silica (namely, XC-CAR-10, where X represents the number of carbons in the diamines used) for the adsorption of metal ions. In particular, excellent adsorption ability and selectivity towards Pb2+ (ca. 300 μ…
The effect of citrate as a crystal habit modifier on the morphology of zinc oxide has been explored in a wide range of citrate/Zn ratio from 0 to 0.67. With an increase in concentration of citrate at the lower range of the ratio, the aspect ratio of the hexagonal prismatic crystals of ZnO decreases, forming flatter di…
A microporous hydrophobic polyaniline (PANi) integrated poly(hexamethylene diisocyanate tripolymer/polyethylene glycol) [poly(HDT/PEG)] gel electrolyte was successfully synthesized via a two-step aqueous solution polymerization process. An ionic conductivity of 12.11 mS cm−1 at room temperature was obtained for the PA…
Wide wavelength range (550-1600 nm) measurements of nonlinear optical properties of ca. 5 nm CdS quantum dots (QDs) colloidal solution were performed using the Z-scan technique with femtosecond laser pulses at 1 kHz. Parameters characterizing nonlinear absorption and nonlinear refraction were determined. Nonlinear abs…
To evaluate pulmonary toxicity of multi-walled carbon nanotubes (MWCNTs), F344 rats of both sexes were exposed by inhalation to 0.2, 1 or 5 mg/m(3) MWCNT aerosol for 6 h/day, 5 days/week for 2 weeks using a whole-body exposure system. At the end of the 2-week exposure period, one-half of the rats were necropsied, and…
This paper presents a combinatorial deposition of a nano-thin film yttria-stabilized zirconia (YSZ) electrolyte deposited on a nanoporous anodic aluminum oxide (AAO) membrane, which serves as a supporting and gas-permeable substrate. The dense YSZ electrolyte was deposited by combining atomic layer deposition (ALD) an…
SERS hot spots with outstanding enhancement ability can spontaneously form in a reversible and reproducible way by the self-approach of flexible silver nanorods driven by the capillary force of solvent evaporation, and at the same time the target analytes can be trapped in the top-closed silver nanorods in the solvent…
Phase change materials are attractive candidates for use in ohmic switches as they can be thermally transitioned between amorphous and crystalline states, showing several orders of magnitude change in resistivity. Phase change switches are fast, small form factor, and can be readily integrated with MEMS and CMOS elect…
An electrode material consisting of graphene decorated with molybdenum dioxide nanoparticles (G–MoO2) is developed. The material exhibits not only a high specific capacitance but also an excellent cycling performance as well as good rate capability in lithium ion capacitors (LICs). The specific capacitance of the G–Mo…
Single-walled carbon nanotubes (SWNT) could replace silicon in high-performance electronics with their exceptional electrical properties and intrinsic ultra-thin body. During the past five years, the major focus of this field is gradually shifting from proof-of-concept prototyping in academia to technology development…
Recent studies have examined the possibility of growing honeycomb silicene and germanene, the silicon and germanium analogues of graphene. Here we use first-principles calculations to examine the relative stability of a number of other single-layer structures that are derived from prominent surface reconstructions of…
Gold nanoclusters with five discrete sizes (Au4, Au8, Au10, Au13, and Au25) are synthesized in a protein template with predefined conformation via a CO-mediated synthesis.
A unique cell-membrane-permeable europium complex has been developed as a probe for time-gated luminescence detection of singlet oxygen (1O2). Combined with the time-gated luminescence imaging technique, the probe was successfully used for investigating the time-dependent generation and distribution of 1O2 induced by…
Nano-sized layered cadmium, magnesium and potassium–Mn oxides were synthesized and characterized by scanning electron microscopy, energy-dispersive X-ray mapping, transmission electron microscopy, X-ray diffraction spectroscopy, and atomic absorption spectroscopy. These oxides showed water oxidizing activity in the pr…
A novel strategy for surface modification of multi-walled carbon nanotubes (MWCNTs) using reversible addition fragmentation transfer (RAFT) derived pH- and thermo-responsive polymers was developed via a combination of mussel inspired chemistry and a Michael addition reaction. In this procedure, pristine MWCNTs were fi…
Highly dispersed polypyrrole (PPy) is firstly designed for decorating onto the surface of pristine multiwalled carbon nanotubes (CNTs), then used in the facile synthesis of a CNT/PPy core/shell composite, which provides a potential application for further modification as a base-material due to its high dispersibility.…
A series of flame retarding biodegradable polylactic acid composites (FR-PLA) based on aluminum hypophosphite (AHP) and expanded graphite (EG) were prepared by the melt-compounding method. The effect of AHP and EG on the flame retardancy and thermal stability of PLA were investigated by thermogravimetric analysis (TGA…
A high-yielding dispersion of graphene at high concentration in solvent is critical for practical applications. Herein, we demonstrate the formation of a stable dispersion of pristine graphene in ethanol by exfoliating graphite flakes into individual graphene layers using a non-ionic polymer surfactant under bath-type…
Elsewhere, laboratory-scale solar cells have been demonstrated which show clear evidence of the successful exploitation of semiconducting single walled carbon nanotubes (SWNTs) as primary absorbers of sunlight energy. The unique properties of SWNTs may allow for high efficiency solar cell devices however little progre…