Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
A facile synthesis of ultrathin single crystal ZnS nanowires with an average diameter of 4.4 nm in high yield (close to 100%) was firstly reported through the pyrolysis of a single-source precursor (zinc diethyldithiocarbamate). The obtained ultrathin ZnS nanowires exhibit good optical properties and hold promise for…
This review summarises the advances in synthetic methods of nanoparticles (NPs) for biomedical applications published in 2009.
A novel approach towards highly conductive free-standing chemically reduced graphene/carbon nanotube composite films via an in situ thermolysis of functionalized graphene/organic cobalt complexes was developed. By combining 1D-CNT and 2D-graphene, a synergistic effect of conductivity was established.
The reaction of 2,6-pyridinedimethanol (pdmH(2)), CoCl(2)·6H(2)O, Ln(NO(3))(3)·6H(2)O and pivalic acid (pivH) in the presence of triethylamine in MeCN and CH(2)Cl(2) under ambient conditions results in the tetranuclear heterobimetallic compounds [Co(II)(2)Ln(2)(pdmH)(4)(Piv)(6)]·4CH(3)CN (Ln = Y (1), Gd (2), Tb (3), H…
Carbon nanotubes (CNTs) have been a popular material in recent years, but their thermal characteristics have not been understood completely. We investigated the unique thermal stability of multi-walled carbon nanotubes (MWCNTs) and used nitric acid (HNO3) to purify MWCNTs to promote its activation energy (Ea). The stu…
Herein, we present a template- and surfactant-free electrochemical method for the fabrication of hierarchical porous CeO2 NWs and NWAs. These porous NWs/NWAs have diameters of 50–200 nm and lengths of up to several micrometres. Both the NWs and NWAs exhibit an excellent ability to remove Congo red in wastewater treatm…
We report a convenient method to incorporate pi-electron units into peptides that assemble into amyloid-like supramolecular polymers, discussing the scope of the process and preliminary characterization of the resulting nanomaterials. Self-assembly manipulates these "electronic peptides" into delocalized sub-10 nm 1-D…
Hybrid solar cells based on CdSe nanoparticles and a PPV-type polymer containing fluorene and thiophene units (PFT) were investigated. The CdSe/PFT devices showed very low photocurrent and fill factor values, which was attributed to the poor charge transport in the TOPO-capped CdSe nanoparticle phase. Thus, ternary sy…
Efficient electronic energy transfer (EET) in the newly synthesized dyads comprised of zinc porphyrin covalently linked to one, two or four numbers of boron dipyrrin (BDP) entities is investigated. Both steady-state and time-resolved emission as well as transient absorption studies revealed occurrence of efficient sin…
A simple formulation of a stable high internal phase emulsion of dicyclopentadiene which is cured by using properly selected ring opening metathesis polymerization initiators yields highly porous monolithic materials with paramount mechanical properties and the possibility of easy functionalisation.
We analyze the time harmonic Maxwell equations in a complex three-dimensional geometry. The scatterer $\Omega\subset\mathbb{R}^3$ contains a periodic pattern of small wire structures of high conductivity, and the single element has the shape of a split ring. We rigorously derive effective equations for the scatterer a…
Hydrogen gas is generated by the electrolysis of liquid ammonia which has high hydrogen capacity of 17.8 mass%. The metal amides are used as supporting electrolytes to dissolve the amide ion in liquid ammonia. The results presented here indicate that liquid ammonia is promising as an energy medium for hydrogen storage…
A cheap and more environmentally friendly method for the synthesis of high quality PbS nanoparticles in olive oil at 60 °C has been developed. Carefully controlling the conditions of reactions leads to PbS nanoparticles with well-defined sizes, and band gaps between 1.72 and 0.88 eV. The nanoparticles were characteriz…
Delafossite p-type CuFeO2 (CFO) semiconductors were synthesized by a modified solid state reaction technique and investigated by x-ray diffraction, x-ray photoemission spectroscopy (XPS), energy dispersive x-ray spectroscopy, and scanning electron microscopy, revealing the single-phase nature of CFO with 1:1 Cu/Fe ato…
Surface roughness on different length scales is favourable for superhydrophobic behaviour of surfaces. Here we report (i) an improved synthesis for hybrid raspberry-like particles and (ii) a novel method to obtain superhydrophobic films of good mechanical stability. Polystyrene spheres with a diameter of 400 nm-1 micr…
Shvo's cyclopentadienone-ligated ruthenium complex is an efficient catalyst for the liberation of exactly two molar equivalents of hydrogen from ammonia-borane, a prospective hydrogen storage medium. The mechanism for the dehydrogenation features a ruthenium hydride resting state from which dihydrogen loss is the rate…
Binding an established single-molecule magnet cluster of distorted cubane type [Mn(III)(3)Mn(IV)O(4)] to the lacunary site of an {alpha-P(2)W(15)} polyoxotungstate scaffold results in a surprising zero-field splitting inversion and the subsequent loss of magnetization bistability.
Advances in nanoscale processing and simulation have led to the capability to directly control the mechanical properties of a material through change of its structural makeup at the nanoscale. A novel class of mechanomutable materials in which mechanical properties can be both tunable and reversible via in situ modifi…
Organic fluorescent nanofibrils were fabricated from a linear carbazole trimer and employed for expedient detection of nitroaromatic explosives (DNT and TNT) and highly volatile nitroaliphatic explosives (nitromethane).
Carbon nanotubes (CNTs) have attracted tremendous attention in biomedical applications due to their molecular size and unique properties. This tutorial review summarizes the strategies to functionalize CNTs with bioactive carbohydrates, which improve their solubility, biocompatibility and biofunctionalities while pres…