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。
The catalytic effect of tetraphenylporphyrin on the oxygen reduction with ferrocene in 1,2-dichloroethane can be finely tuned by varying the molar ratio of the acid to the catalyst present in the solution. The mechanism involves binding of molecular oxygen to the protonated free porphyrin base, in competition with ion…
We have performed coarse grained molecular dynamics simulations (CGMD) to investigate the interactions of generation 7, 5 and 3 (G7, G5 and G3) charge-neutral polyamidoamine (PAMAM) dendrimers with a DPPC (dipalmitoylphosphatidylcholine) monolayer at the air–water interface (model pulmonary surfactant) during the end-…
Alumina is traditionally considered to be inappropriate as a support for high-performance gold catalysts. Here, a highly active Au/meso-AlO catalyst for liquid-phase alcohol oxidations was synthesized using a home-made mesoporous γ-Al2O3 (meso-AlO) via a cation–anion double hydrolysis (CADH) method.
The atom substitution preference of ternary additions in Ni3M-type GCP (geometrically close-packed) compounds with D0a structure was determined from the direction of single-phase region of the GCP phase on the reported ternary phase diagrams. In Ni3Nb, Co and Cu preferred the substitution for Ni-site, Hf, Ta, Ti, V an…
Hexa-Zn-tungstoarsenate(III) [Zn(Hen)]6[B-α-AsW9O33]2·6H2O (1) consists of two [B-α-AsW9O33]9− subunits incorporating a unique turbine-shaped [Zn(Hen)]618+ cluster, which represents the first hexa-ZnII substituted sandwich-type polyoxometalate.
The complexes [Fe(dm4bt)(3)][FeCl(4)](2) (1) and [Fe(dm4bt)(3)][FeBr(4)](2) (2) were prepared from the reaction of 2,2'-dimethyl-4,4'-bithiazole (dm4bt) with FeCl(3)·6H(2)O and FeBr(3), respectively, in methanol. Both complexes were characterized by IR, UV-Vis and (1)H NMR spectroscopy and their structures were studie…
Thermo-responsive PNIPAAm rich hydrogels with controllable properties have been prepared by introducing small quantities of peptide–PNIPAAm bioconjugates where the peptide self-assembled into a β-sheet rich fibrillar network. This was achieved in a one pot synthesis using a thiol-modified peptide as the chain-transfer…
Herein, we report the manganese complex with a novel trianionic ligand, the pentafluorophenyldipyrrinphenol ligand DPPH(3). The X-ray crystal structure reveals that the Mn(III) complex exists in a dimeric form in the solid state. Electrochemical studies indicate two quasi-reversible one electron oxidation processes. E…
Single crystalline strontium borate (SrB2O4) nanorods were synthesized for the first time via a facile sol–gel route at low temperature. The SrB2O4 nanorods have a good crystalline nature with the growth direction along the [511] orientation and they are transparent from the ultraviolet to the visible regimes. Nanosca…
Bit patterned media (BPM) is fabricated by a directed self-assembled polymer mask. CoPt magnetic dots with 17 nm pitch (2.5 Tb/in2) consists of ridge-and-groove servo patterns as well as circular data tracks. Distribution of dot size and dot pitch is 16% and 15%, respectively. The position error signal (PES) is estima…
Pharmaceutical cocrystals are of great interest because of their potential to enhance solubility and bioavailability of poorly water-soluble drugs. Cocrystal development is however limited by their poor thermodynamic stability in aqueous environments. The work presented here describes the mechanisms by which cocrystal…
Abstract: Various levels of manganese (Mn)-doped ZnO were synthesized by precipitation method. Characterization was carried out by XRD, TEM, SEM, EDX, BET and the band gap measured by UV-visible reflectance. In the XRD pattern of samples, there is no signature of impurity peaks, which could indicate Mn-related seconda…
A molecular detection method utilizing the magnetically induced aggregation of silver nanoparticle (NP)-embedded silica NPs for SERS activation is described. Here, silver embedded magnetic NPs (Ag-M-dots) composed of a magnetic core and silica shells, on whose surface silver NPs were formed, were used. Because the mag…
Surface Sb/Ni and Sn/Ni alloys were found to efficiently minimize the negative effects of sulfur on the performance of Ni/zirconia anode-supported solid oxide fuel cells (SOFC). Prior to operating on fuel gas containing low concentrations of H 2 S, the nickel/ zirconia anodes were briefly exposed to antimony or tin va…
Conductive titania nanofibres supporting Pt nanoparticles were synthesised in a one-pot method based on the electrospinning technique. The dimensions of both the oxide fibres and platinum particles were tuneable, leading to versatile nanomaterials with possible applications as electrodes for energy conversion devices.
α-Co(OH)2 hierarchical nanoflowers were synthesized using a microemulsion as a nanoreactor. These structures were self-assembled from cobalt hydroxide nanoflakes and possessed flowerlike morphology with a diameter of 200–500 nm. These α-Co(OH)2 nanoflowers exhibited high specific area and porosity and show high activi…
Addition of neutral R123 molecules (10(-7) M) to an as-prepared gold nanoparticles (AuNPs) suspension generated flocculates that are a small number of closely adjacent particles. Formation of AuNP flocculates was evidenced by the coupled localized plasmon peak at 720-750 nm. The AuNP flocculates provided pronounced SE…
Blinking dynamics of CdSe/ZnS semiconductor quantum dots (QD) are characterized by (truncated) power law distributions exhibiting a wide dynamic range in probability densities and time scales both for off- and on-times. QDs were immobilized on silicon oxide surfaces with varying grades of hydroxylation and silanol gro…
Here we report the synthesis of a novel liquid crystal based on zinc oxide nanoparticles. Due to the presence of fluxional ligands, the hybridized material presents mesomorphic behavior even for a high content of inorganic material. In combination with promising luminescent properties, it may well be exploited for ele…
Hydrogelation of a pyridine derivative (1) possessing tetrazole moieties as end groups, without long alkyl chain groups, results in the formation of a Mg(NO3)2 coordination polymer gel. The polymer exhibits a strong fluorescence enhancement upon gel formation. 1 can also be gelated with a variety of magnesium anions s…