Materials Literature
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With the simple dinuclear Zn–Nd complex [ZnNdL(H2O)(NO3)3] (1) (H2L = N,N′-bis(3-methoxysalicylidene)ethylene-1,2-diamine) as the precursor, tetranuclear [Zn2Nd2L2(4,4′-bpy)(NO3)6]·Et2O (2) and [Zn2Nd2L2(4,4′-bpe)]·2H2O (3) (4,4′-bpy = 4,4′-bipyridine, 4,4′-bpe = trans-bis(4-pyridyl)ethylene) complexes are formed: sui…
In this tutorial review, the underlying principles of vibrational pumping in surface enhanced Raman scattering (SERS) are summarized and explained within the framework of their historical development. Some state-of-the-art results in the field are also presented, with the aim of giving an overview on what has been est…
The effect of high temperature treatment of ordered mesoporous carbons (OMCs) under neutral atmosphere is studied for OMCs prepared by using different carbon precursors (furfuryl alcohol, sucrose, acenaphthene and mesophase pitch) and different ordered mesoporous silica (OMS) templates (MCM-48 and KIT-6). The OMS-temp…
A novel nonadecanuclear silver double cage was isolated, in which a square antiprism and a pentacapped pentagonal prism templated by a chloride ion share a tetragonal face to form a snowman-like cluster that is held together by bridging alkynyl groups and trifluoroacetates.
The hydrogenation of phenol to cyclohexanol under mild conditions (∼340 K) was achieved over Raney Ni catalyst in the aqueous phase. The adsorption–desorption properties of the reactants (phenol and H2) and the products (cyclohexanone and cyclohexanol) on the Raney Ni catalyst are different in the aqueous phase and th…
The investigations of sequential cyclic reduction and oxidation (redox) of solid oxide fuel cell (SOFC) Ni–yttria-stabilized zirconia (YSZ) anode substrates presented here are aimed at monitoring and understanding changes in critical physical and mechanical properties as a function of degree of oxidation at . The comm…
Nanotechnologies are already interacting with the environment. Scientists and engineers are manipulating matter at the nanoscale, and these nanoscale processes and products are being used by industry in commercially available products. These products are either applied directly to the environment or end up in the envi…
Nanostructured nickel hydroxides are galvanostatically deposited onto a stainless steel substrate by a plating bath of nickel sulfate, sodium acetate, and sodium sulfate at room temperature. The anodically deposited nickel hydroxide electrodes are highly porous and composed of interconnected nanoflakes about in thickn…
This article examines the feasibility of using multiwall carbon nanotubes (MWCNTs) as a fire retardant in silicone-based foams. MWCNTs were mechanically blended with polydimethylsiloxane reactants without any previous functionalisation treatment. The flammability of the materials was characterised as a function of the…
Degradation profiles induced by partial discharges and those induced by oxygen plasmas are compared for polyamide/mica nanocomposites. Both the resistances to partial discharges and to plasmas improve with an increase in nanofiller content. On the other hand, the partial discharge resistance is not improved if mum-siz…
Efficient post-functionalization of conductive polymer films was achieved by Cu(+)-catalyzed "click"-cycloaddition of novel poly(azidomethyl-EDOT) and various functionalized terminal alkynes under mild heterogeneous conditions with high conversion efficiencies.
Microporous titanosilicate Ti-MCM-68 (Ti-MSE) was successfully synthesized by post-synthetic isomorphous substitution of Ti for Al and proved to be a high-performance catalyst, in particular showing superior performance to TS-1, Ti-BEA, and Ti-MWW for phenol oxidation using H(2)O(2) as an oxidant.
The thermal conductivities of vinyl endblocked polymethylsiloxane reinforced with silicone nitride (Si 3 N 4 ) particles alone or in combination with silicone carbide whisker (SiC w ) were investigated in this article. The results indicate that the silicone rubber incorporating of 50 vol% hybrid Si 3 N 4 particles of…
Polyanline (PANI)–silica and poly(3,4-ethylenedioxythiophene) (PEDOT)–silica colloidal composite particles having a diameter of 200–300 nm were synthesized, then converted to intrinsically conducting polymer (ICP)-inks viasolvent exchange. These inks could be inkjet-printed on indium tin oxide-coated poly(ethylene ter…
Well-aligned rectangular-shaped nanodiamond fibers (NDFs) with a length-to-width ratio of over 1000 were formed on a large-scale via a self-assembly process by drying acid-treated nanodiamonds of a uniform size (∼4 nm) from an aqueous solution. Nanodiamond thin films (NDTFs), instead of NDFs, have also been prepared b…
Solid tumors have an acidic extracellular environment and an altered pH gradient across their cell compartments. Nanoparticles responsive to the pH gradients are promising for cancer drug delivery. Such pH-responsive nanoparticles consist of a corona and a core, one or both of which respond to the external pH to chang…
Zinc oxide (ZnO) nanowire arrays with controlled nanowire diameter, crystal orientation, and optical property were prepared on sol-gel ZnO-seed-coated substrates with different pretreatment conditions by a hydrothermal method. The vertical alignment, crystallinity, and defect density of ZnO nanowire arrays are found t…
Nanotechnology presents countless opportunities to develop new and improved consumer products for the benefit of society. However, as the industrial production and use of nanotechnology products continue to expand at a fast scale, potential human health concerns and ecological safeguards for the environment need to be…
Complex “chemical hydrides” present new families of materials for high gravimetric capacity hydrogen uptake. Such high capacity storage is offered reversibly with potentially rapid sorption kinetics and good cyclability by systems taking materials containing lithium and nitrogen as a basis. Such nitrides, imides and a…
Large-scale three-dimensional (3D) CdS nanocrystals with a flowerlike morphology were synthesized by a facile hydrothermal treatment from Cd(NO 3 ) 2, thiourea, and hexamethylenetetramine [(CH 2 ) 6 N 4, HMT], where HMT acted as a capping agent. The reaction conditions influencing the synthesis of these 3D CdS nanocry…