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。
Nanostructured silver films were deposited at room temperature on polypropylene non-wovens by radio frequency magnetron sputter coating to obtain the antibacterial properties, and the relationship between sputter parameters and antibacterial properties were investigated in this paper. The antibacterial activity of the…
Exchange coupling between the radical iminosemiquinone ligands changes from ferromagnetic to antiferromagnetic in l.s. Co(III) complexes, whereas the same coupling in Ga(III) complexes is always antiferromagnetic.
Abstract The dissolution of cotton fibres has been studied at different development stages before and after the onset of secondary wall deposition in solvents of varying quality. We show that the dissolution of the primary wall is inefficient even in good solvents. In moderately good solvents, the inside of the second…
"Critical" channel diameters were found (below which space confinement takes effect, leading to more uniform and ordered mesopore structures) in the study of evaporation-induced co-assembly of triblock-copolymer (P123) and silica molecular precursors (TEOS, tetraethyl orthosilicate) by employing channels in anodized a…
During wet-chemical synthesis of nanoparticles it is believed that surfactants interact with the particles after their nucleation thereby controlling their crystal structure, shape and size. Contrary to this, our investigations presented in this paper reveal a new role for surfactants: influencing the reaction pathway…
We report on a new available strategy for fabricating CdS QD–polymer hybrids networks with enhanced photoluminescence (PL). Firstly, we synthesized a series of versatile polymeric ligands for the preparation of nanocrystals by catalytic chain transfer polymerization (CCTP) and radical addition–fragmentation polymeriza…
The equilibrium concentration of NH 3 in the volatile products of the reaction between Mg(NH 2 ) 2 and 2LiH and the decomposition of Mg(NH 2 ) 2 and LiNH 2, respectively, depends strongly on the reaction temperatures. The enthalpy changes of NH 3 generation in the decomposition of LiNH 2 and Mg(NH 2 ) 2 are deduced fr…
A detailed study into the synthesis and characterization of achiral nonsymmetric dimeric bidentate ligands formed by combining salicylaldimine and cyanobiphenyl rodlike anisometric segments through a flexible spacer (varying in its length and parity) and their Cu(II) and Pd(II) complexes is reported. The spacer parity…
Highly stable dendrimer-encapsulated Pd nanoparticles in ionic liquids were prepared for the first time by using charged PAMAM dendrimers as templates, which could maintain hydrogenation efficiency for up to at least 12 recycles.
The electromagnetic scattering from a conducting object coated with metamaterials, which have both negative permittivity and permeability is derived rigorously by using finite difference frequency domain (FDFD). A formulation for the FDFD method is presented. The scattering from circular and multilayers elliptic cylin…
This paper presents a converter topology used to interface a bank of Supercapacitors (SC) to a stiff DC-Link, like the one constituted by a typical battery. Main feature of the proposed converter is the reduced ratings of the power electronics switches compared to standard topologies. The capabilities of the proposed…
Combining B3PW hybrid exchange-correlation functional within the density functional theory (DFT) and a supercell model, we calculated from the first principles the electronic structure of both ideal PbZrO(3) (001) surface (with ZrO(2)- and PbO-terminations) and a neutral oxygen vacancy also called the F center. The at…
Aluminum–magnesium alloys can potentially be used as hydrogen storage materials. In order to enhance the kinetics of hydrogenation, it is desirable to have agglomerates of fine powders with very small grain size. Electrodeposition is a viable method to produce pure powders with an ultrafine structure. In this paper we…
Five new organic-inorganic assemblies, [Co(en)(3)][Co(en)(2)As(8)V(14)O(42)(H(2)O)].16H(2)O (1), [Ni(Meen)(3)](4)[Ni(Meen)(2)][As(8)V(14)O(42)(NO(3))](2).8H(2)O (2), [Cd(en)(3)][Cd(phen)(en)(H(2)O)(2)][(en)CdAs(8)V(13)O(41)(H(2)O)].1.5H(2)O (3), [Cd(phen)(2)(en)](2)[(phen)CdAs(8)V(13)O(41)(H(2)O)].21H(2)O.phen (4), [Z…
The synthesis, molecular and electronic structure of the first bis(alpha-diiminato)manganese(II) complex are reported, [Mn(II)(L )(2)] (S(t) = (3)/(2)) where (L )(1-) represents the one-electron reduced form of N,N'-bis(2,6-isopropylphenyl)-1,4-diaza-1,3-diene; density functional theoretical calculations using the B3L…
New free-base and Zn-porphyrins with either vinyl groups or p-phenylene vinylene groups substituted on the β carbon have been synthesized and studied from a photophysical viewpoint in toluene. A bathochromic shift of all absorption bands together with a pronounced decrease in the molar absorption coefficient at the wa…
The specific features revealed in the structure of the molybdenum and tungsten peroxo complexes with the ratios M: O2 = 1: 1, 1: 2, and 1: 4 are considered. It is demonstrated that the geometry of the coordination polyhedron of the metal atom is primarily determined by the “metal: peroxo ligand” ratio. Formally, the p…
We fabricated single cells with a (LNF) cathode and a scandia alumina–doped zirconia electrolyte. Cells with a cathode consisting of a current collecting LNF layer and an active layer were also fabricated by using a screen-printing technique. The active layer contained (SDC) or and LNF particles. The influence of the…
Pt nanotubes with mesoporous walls have been successfully prepared for the first time by the combination of hard templates (porous anodic alumina membranes, PAAM) and soft templates (lyotropic liquid crystals, LLC).
The propagation of pressure waves caused by a thermal shock in liquid mercury containing micro gas bubbles has been simulated numerically. In the present study, we clarify the influences of the introduced bubble size and void fraction on the absorption of thermal expansion of liquid mercury and attenuation of pressure…