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。
Power transformers' reliability can be seriously affected by partial discharges. For this reason, it is necessary to implement technical methods to identify endangered equipment before catastrophic failures occur. A well-known method that can be applied either in the laboratory or in the field is the detection and loc…
We report the time- and symmetry-dependent surface-enhanced Raman scattering (SERS) of gold nanoparticle (AuNP) aggregates. The addition of p-aminothiophenol (p-ATP) instantly induces the aggregation of AuNPs, confirmed by large absorption in the near-IR region. Dynamic light scattering measurements show that the addi…
The AgCrS2 layer sulfide exhibits ferroelectricity below TN = 42 K as its AgCrO2 oxide counterpart. By considering the different Ag and Cr environments, these results offer new opportunities to discover magnetoelectrics in triangular lattice antiferromagnets.
The synthesis of composite microgels consisting of pH-responsive latexes with gold nanoparticles was investigated along with the optical properties of the products. The gold nanoparticles were deposited by wet chemical reduction from gold ions adsorbed in cross-linked poly(2-vinylpyridine) latexes, by which the mean p…
The magnetic and electronic modifications induced at the interfaces in ${({\text{SrMnO}}_{3})}_{n}/{({\text{LaMnO}}_{3})}_{2n}$ superlattices have been investigated by linear and circular magnetic dichroism in the $\text{Mn}\text{ }{L}_{2,3}$ x-ray absorption spectra. Together with theoretical calculations, our data d…
We present a computational investigation of free-standing graphene bilayer edge (BLE) structures, aka ``fractional nanotubes.'' We demonstrate that these curved carbon nanostructures possess a number of interesting properties, electronic in origin. The BLEs, quite atypical of elemental carbon, have large permanent ele…
Activated carbons with large mesopore volumes were prepared from waste coffee grounds by chemical activation with ZnCl 2 . These carbons exhibited excellent electrochemical double-layer capacitance of up to 368 F g −1 in 1 M H 2 SO 4 . The effect of carbonization temperature and ZnCl 2 ratio on carbon pore development…
The structure of a catalyst often changes as a result of changes in the reactive environment during operation. Examples include changes in bulk phases, extended surface structures, and nanoparticle morphologies; now we report real-time characterization of changes in the structure of a working supported catalyst at the…
We investigated element-specific magnetic moments and the spin-resolved unoccupied density of states (DOS) of polycrystalline ${\text{Co}}_{2}\text{Ti}Z$ $(Z=\text{Si},\text{ }\text{Ge},\text{ }\text{Sn},\text{ }\text{Sb})$, ${\text{Co}}_{2}{\text{Mn}}_{x}{\text{Ti}}_{1\ensuremath{-}x}\text{Si}$ and ${\text{Co}}_{2}{\…
ADVERTISEMENT RETURN TO ISSUEPREVCommunication to the...Communication to the EditorNEXTBinaphthalene-Based, Soluble Polyimides: The Limits of Intrinsic MicroporosityNicola Ritter†, Markus Antonietti†, Arne Thomas†, Irena Senkovska‡, Stefan Kaskel‡, and Jens Weber*†View Author Information† Max Planck Institute of Collo…
We introduce the first π-conjugated polymer-based, black-to-transmissive and multicolored switching electrochromic device (ECD) constructed in a Pseudo 3-Electrode Electrochromic Device (P3-ECD) architecture. In this ECD, the non-electrochromic, yet electroactive, polymer poly(3,4-propylenedioxypyrrole- N -propionitri…
We elucidate the termination surface of cleaved single crystals of the ${\text{BaFe}}_{2\ensuremath{-}x}{\text{Co}}_{x}{\text{As}}_{2}$ and ${\text{Fe}}_{y}{\text{Se}}_{1\ensuremath{-}x}{\text{Te}}_{x}$ families of the high-temperature iron-based superconductors. By combining scanning tunneling microscopic data with l…
In recent years carbon-nanotube-based thermal interface materials have shown great potential for solving the thermal management problem of integrated circuits and nanodevices. For a long time, the exceptionally high thermal boundary resistances (TBRs) between carbon nanotubes (CNTs) and their surroundings have been su…
We provide a simple analytical model for the modification of optical properties of active molecules and other objects when they are placed in the vicinity of metal nanoparticles of subwavelength dimensions. Specifically, we study the enhancement of optical radiation, electroluminescence, and photoluminescence absorbed…
Highly dispersed colloidal gold (Au) nanoparticles were synthesized at room temperature using glow discharge plasma within only 5 min. The prepared Au colloids were characterized with UV-visible absorption spectra (UV-vis), X-ray photoelectron spectroscopy (XPS), and transmission electron microscopy (TEM) equipped wit…
We investigated the temperature dependence of the upper critical field $[{H}_{c2}(T)]$ of fluorine-free ${\text{SmFeAsO}}_{0.85}$ and fluorine-doped ${\text{SmFeAsO}}_{0.8}{\text{F}}_{0.2}$ single crystals by measuring the resistive transition in low static magnetic fields and in pulsed fields up to 60 T. Both crystal…
The structural and electronic properties of the neutral and positively charged oxygen vacancies (F and F+ centres) in the bulk and on the (001) surfaces of SrTiO3 crystal are examined within the hybrid Hartree-Fock and density functional theory (HF-DFT) method based upon the linear combination of atomic orbital (LCAO)…
The effect of calcium doping on the performance of Co/CeO(2) catalysts in ethanol steam reforming was examined using various characterization techniques including CO temperature-programmed reduction, O(2) and CO pulse chemisorption, laser Raman spectroscopy, X-ray diffraction, isotopically labeled oxygen exchange, and…
Superhydrophobicity, superfluidity, superlubricity, and supersolidity (4S) at the nanometer-sized liquid−solid or solid−solid contacting interfaces have long been issues of puzzling with the common characteristics of nonsticky and frictionless motion. Although the 4S occurrences have been extensively investigated, the…
In this paper, practical design issues related to the use of high-strength neodymium-iron-boron magnets are described. These magnets have increasing utility in transportation systems (maglev, linear and rotary motors), bearings, and in eddy-current brakes. However, careful design must be done to utilize the full capab…