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。
Topping it off: Layer-by-layer growth was used to produce a highly oriented crystalline surface coordination polymer made up of copper dithiooxamide complexes (see scheme; SAM=self-assembled monolayer). This example demonstrates that layer-by-layer growth in the liquid phase can produce a highly crystalline system eve…
Polycrystalline synthetic samples of Y 2 Ti 2− x Sn x O 7 with x = 0.4, 0.8, 1.2, and 1.6, together with Nd 2 Zr 2 O 7, Nd 2 Zr 1.2 Ti 0.8 O 7, and La 1.6 Y 0.4 Hf 2 O 7, were irradiated in situ in the intermediate voltage electron microscope (IVEM)-Tandem Facility at Argonne National Laboratory using 1.0 MeV Kr ions…
A boomerang-shaped organic gelator, a dehydrobenzo[12]annulene derivative with two methyl ester groups (see picture), successfully forms an organogel in various organic solvents. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy…
Abstract Solid oxide fuel cell (SOFC) is highly efficient and is a promising candidate for future power systems. Among the many types of SOFCs which have been reported, the micro tubular design offers improved thermal robustness, with the possibility of rapid start‐up/shut‐down. In this study, a new stack structure fo…
Abstract In this paper, a remote DC glow discharge at atmospheric pressure is employed for surface modification of PDMS aimed at improvement of its adhesive properties. The effects of the discharge on the surface properties of PDMS are probed using contact angle measurements, XPS and T‐peel tests. Results show that th…
Abstract Sealing properties and compression properties of two mica‐based materials, Thermiculite 866 and Statotherm HT were measured. Thermiculite 866 was tested in two forms: as‐made and precompressed (consolidated). Sealing tests were carried out at 800 °C with simulated fuel cell anode gas. Seals were pressed to a…
Abstract This article recalls basic properties of Slater type Orbital (STO) basis sets, in particular, with respect to satisfying Kato's electron‐nucleus cusp condition. It is shown that a suitable starting point is the set of hydrogen‐like orbitals or, more flexibly, their generalization as Coulomb Sturmians. A case…
By combining classical samplings with quantum chemistry semiempirical time-dependent Hartree-Fock calculations, the high impact of dynamic fluctuations on the NLO properties of helical strands has been evidenced. In particular, these fluctuations are responsible for relative variations of approximately 20% in the hype…
Abstract Injecting high electronic charge densities can profoundly change the optical, electrical, and magnetic properties of materials. Such charge injection in bulk materials has traditionally involved either dopant intercalation or the maintained use of a contacting electrolyte. Tunable electrochemical charge injec…
Tuning structures: We report a synthetically simple yet structurally rich gelator that self-assembles through hydrogen bonding under different cooling regimes into different nanoscale morphologies (see figure), which can be covalently captured and stabilised by alkene metathesis.
A novel conjugated polymer (RB-PPETE) of poly[p-(phenylene ethynylene)-alt-(thienylene ethynylene)] (PPETE) bearing covalently linked thienylene rings and Rhodamine B units has been synthesized and successfully used to detect metal ions. The Rhodamine B exists as a lactone, which is colorless and non-fluorescent. Hg(2…
We study the effect of confinement on diffusion-limited bimolecular reactions within a lattice model where a small number of reactants diffuse among a much larger number of inert particles. When the number of inert particles is held constant, the rate of the reaction is slow for small reaction volumes due to limited m…
Abstract A tubular array of TiO2 nanotubes on Ti matrix was used as a support for Ag or Cu sputter‐deposited layers intended for surface‐enhanced Raman scattering (SERS) investigations. The composite samples of Ag/TiO2–nanotube/Ti and Cu/TiO2–nanotube/Ti were studied with the aid of scanning electron microscopy (SEM)…
β‐SiAlON–cubic boron nitride (cBN) composites were prepared from β‐SiAlON and cBN powders at 1600°–1900°C under a pressure of 100 MPa by spark plasma sintering. The effects of cBN content and sintering temperature on densification and phase transformation of the β‐SiAlON–cBN composites were studied. When 10–30 vol% cB…
In this paper, novel multiaction antibacterial nanofibrous membranes containing apatite, Ag, AgBr and TiO2 as four active components were fabricated by an electrospinning technique. In this antibacterial membrane, each component serves a different function: the hydroxyapatite acts as the adsorption material for captur…
We present a two-fold study designed to elucidate the adhesion mechanism of human U937 monocytes on novel N-rich thin films deposited by plasma- and VUV photo-polymerisation, so-called "PVP:N" materials. It is shown that there exist sharply-defined ("critical") surface-chemical conditions that are necessary to induce…
Anode‐supported solid oxide fuel cells have been produced by water base sequential tape casting and cosintering. The curvature developed upon cosintering was monitored in situ . By tailoring the green microstructure, it was possible to reduce the curvature rate and to produce flat cells avoiding the need for a creep‐f…
We have measured the influence of mesoporous silica (MCM-41 and SBA-15) nanoparticles and dense silica nanoparticles on epinephrine oxidation, a pH-dependent reaction, whose rate is small in acidic or neutral solutions but much greater at higher pH. The reaction was measured by monitoring adrenochrome at 480 nm, the p…
We measured phonon dispersions of CaFe2As2 using inelastic neutron scattering and compared our results to predictions of density functional theory in the local density approximation. The calculation gives correct frequencies of most phonons if the experimental crystal structure is used, except observed linewidths/freq…
Let's twist again! Remarkable broad and twisted ribbons were generated from the self-assembly of oligo(p- phenylene ethylene) (OPE) bearing dimeric deoxycholic acid pendant groups (see graphic). Varying the bile acid led to nanostructures with drastically different morphologies. The distinctive aggregate shapes of the…