16 Result(s)
within
Characterization and Evaluation of Materials
Physical Chemistry
**ao-**a Jiang
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Article
Polyvinylpyrrolidone-assisted aqueous synthesis of monodisperse CH3NH3PbBr3 perovskite nanocrystals
Metal halide perovskites are difficult to be prepared entirely in water due to their ionic nature. Aqueous synthesis routes of methylammonium lead bromide (CH3NH3PbBr3) perovskite were reported previously, but th...
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Article
SnSe nanoparticles with the ultra-low lattice thermal conductivity: synthesis and characterization
Tin selenide (SnSe) with an orthorhombic system has recently become a hot spot in the thermoelectric field owing to its low thermal conductivity and high melting point. In this work, P-type SnSe nanoparticles ...
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Article
Pt-Ni alloy catalyst supported on carbon aerogel via one-step method for oxygen reduction reaction
Carbon-supported platinum-nickel alloy catalysts have become one of the main choices of proton exchange membrane fuel cells (PEMFCs) due to the high catalytic activity toward oxygen reduction reaction (ORR). I...
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Article
RETRACTED ARTICLE: Determination of acetaminophen spatial distribution and content in tablets using confocal micro-Raman spectroscopy map**
This study focused on the development of an effective method to determine the spatial distribution and content of acetaminophen in intact tablets. We scanned tablets by confocal micro-Raman spectroscopy using ...
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Article
Accurately controlling the shell thickness in the core–shell microspheres with single silica core and poly (butyl acrylate) rubber shell via emulsion polymerization
The shell thickness of core–shell microspheres with a rigid core and soft rubber shell has been accurately controlled through the emulsion polymerization. When the amount of BA monomer and SiO2 is fixed, the morp...
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Article
Nanocomposite of polyrotaxane derivative and graphene with increased dielectric constant
Polyrotaxane, owing to the special topological interlocked structure, has attracted more and more attention from researchers. In this paper, a new polyrotaxane derivative has been synthesized based on the poly...
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Article
Facile synthesis of amine-functionalized MIL-53(Al) by ultrasound microwave method and application for CO2 capture
An amine functional MIL-53(Al) material was prepared through a clean, rapid, energy-efficient method of microwave and ultrasound irradiation. The pure phase NH2-MIL-53(Al) can be formed in 25 min, utilizing the s...
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Article
Synthesis and Z-scan measurements of third-order optical nonlinearity of azothiazole- and azobenzothiazole-containing side-chain polymers
A series of aromatic azothiazole and azobenzothiazole compounds containing vinyl have been designed as monomers. The polymers containing azothiazole and azobenzothiazole NLO chromophore in each side chain have...
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Article
Fabrication of graphene oxide decorated with Fe3O4@SiO2 for immobilization of cellulase
Fe3O4@SiO2–graphene oxide (GO) composites were successfully fabricated by chemical binding of functional Fe3O4@SiO2 and GO and applied to immobilization of cellulase via covalent attachment. The prepared composit...
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Article
Nanotechnology knowledge diffusion: measuring the impact of the research networking and a strategy for improvement
Given the global increase in public funding for nanotechnology research and development, it is even more important to support projects with promising return on investment. A main return is the benefit to other...
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Article
Generalized syntheses of mesoporous γ-Al2O3 functionalized with metal oxides by a one-pot, two-step strategy
Although much attention has been paid to the preparation of mesoporous aluminas, limited reports are concentrated on their functionalization due to the inherent difficulty. In this work, a one-pot, two-step st...
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Article
The effect of [Fe3+]/[Fe2+] molar ratio and iron salts concentration on the properties of superparamagnetic iron oxide nanoparticles in the water/ethanol/toluene system
In this study, we developed a convenient one-pot method with sodium oleate as both the surfactant and precipitant to synthesize pure magnetite nanoparticles in the water/ethanol/toluene system. The initial mol...
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Article
Novel soluble fluorine-containing polyamides derived from 2-(4-trifluoromethylphenoxy)terephthalic acid and trifluoromethyl-substituted aromatic bis(ether amine)s
A series of new fluorine-containing polyamides were prepared directly by polycondensation of 2-(4-trifluoromethylphenoxy)terephthalic acid with four trifluoromethyl-substituted aromatic bis(ether amine)s in N-met...
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Article
PVP-capped twinned gold plates from nanometer to micrometer
PVP (poly(vinyl pyrrolidone))-capped micrometer-sized twinned gold (Au) plates with the shape of hexagon or triangle have been successfully synthesized in a large quantity by reducing hydrogen tetrachloroauric...
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Article
Magnesium oxide-supported polytitazane cobalt(III) complex for catalytic epoxidation of α-pinene with molecular oxygen
Magnesium oxide-supported polytitazane cobalt complex has been prepared and found to be a very effective catalyst for the epoxidation of α-pinene in the presence of an aldehyde as a reductant. XPS data show th...
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Article
Reaction of E-1,4-poly(2-triethylsilyl-1,3-butadiene) with iodine monochloride
Addition of iodine monochloride to E-1,4-poly(2-triethylsilyl-1,3-butadiene) (I) followed by treatment with potassium fluoride dihydrate yields a copolymer comprised of E and Z-1,4-(2-iodo-1,3-butadiene) (E an...
