Materials Literature
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We present a strategy for the synthesis of multiplexed spectral encoder beads based on combinations of different surface enhanced Raman (SERS) signatures generated by dye-functionalized Ag nanoparticle tags. A key problem in SERS-based multiplexing arises in balancing the competitive binding of different signal genera…
Abstract New A ‐site ordered perovskite structure oxides, CaCu 3 Fe 4 O 12 and LaCu 3 Fe 4 O 12 , were synthesized under high‐pressure and high‐temperature conditions. The compounds contain unusually high valence states of iron: Fe 4+ in CaCu 3 Fe 4 O 12 and Fe 3.75+ in LaCu 3 Fe 4 O 12 . Instabilities of the high oxi…
The crystal structure and photoluminescence properties of undoped and Ce 3+ ‐ or Tb 3+ ‐doped Lu‐α‐Sialon are reported. Lu‐α‐Sialon with the composition of Lu 0.367 Si 9.9 Al 2.1 ON 15 crystallizes in a trigonal system with a =7.8013(1) Å, c =5.6827(1) Å, in the space group P 31 c . The Lu 3+ ion is accommodated at th…
Abstract A series of soft to tough copolymers have been prepared by the cationic copolymerization of the modified linseed oils Dilulin or ML189 with DCPD. Soxhlet extraction and solid‐state 13 C NMR spectra indicate that the bulk copolymers consist of a cross‐linked oil/DCPD network interpenetrated with certain amount…
As a lead‐free positive temperature coefficient of resistivity (PTCR) material, (1– x mol%) BaTiO 3 – x mol% (Bi 1/2 K 1/2 ) TiO 3 – y mol% Y 2 O 3 –0.5 mol% TiO 2 (BT– x BKT–2 y Y–0.5TiO 2 ) systems were prepared by the conventional solid‐state reaction method. All samples containing <2 mol% BKT sintered in air po…
Abstract An optimized high temperature route in sealed platinum tubes was used for synthesis of pure powders of members of the homologues series InGaO 3 (ZnO) m . Single crystals of InGaO 3 (ZnO) 2 were grown from a K 2 MoO 4 flux. InGaO 3 (ZnO) 2 crystallises in the hexagonal crystal system ( P 6 3 /mmc ; No. 194), d…
This work reported the microstructural evolution and grain growth kinetics of ZrB 2 –SiC composites containing 10, 20, and 30 vol% SiC during heat treatment at 2000°C. The coarsening of ZrB 2 occurred in the three systems, whereas the obvious coarsening for SiC appeared only in the composite with 30 vol% SiC. The kine…
Bi-Tm-codoped, and Tm- and Bi- singly doped germanate glasses were prepared, and their luminescent properties were investigated. Intense broadband near-IR emission with FWHM of 300 nm was observed in the Bi-Tm codoped glass. The emission intensity of Tm(3+):(3)H(4)-(13)F(4) and (3)F(4)-(13)H(5) transitions in the Bi-T…
Au−Ag alloy nanoparticles with a homogeneous size distribution and good stability were synthesized by simultaneous one-step reduction of HAuCl 4 and AgNO 3, characterized by transmission electron microscopy (TEM), energy dispersion X-ray spectrometry (EDS), scanning electron microscopy (SEM), and selected-area electro…
The metal ion selectivity for M(III) (M = metal) ions exhibited by the highly preorganized ligand PDALC is investigated (PDALC = 2,9-bis(hydroxymethyl)-1,10-phenanthroline). The structures are reported of [Bi(PDALC)(H(2)O)(2)(ClO(4))(3)] x H(2)O (1), monoclinic, P2(1)/c, a = 12.8140(17), b = 19.242(3), c = 9.2917(12)…
CaCu 3 Ti 4− x Fe x O 12 (CCTFO, 0 ⩽ x ⩽ 0.2) ceramics were fabricated by the solid-state reaction method and the dielectric properties have been systematically studied. All ceramics showed the single cubic perovskite structure, and there was no secondary phase. The average grain size increased and the grain boundarie…
The electric and mechanical relaxation spectra of the solutions of lithium perchlorate (LiClO(4)) in propylene carbonate (PC)-based mixed solvents are studied. The frequency-dependent dielectric susceptivity and electric conductivity from 0.05 to 20 GHz are determined with microwave reflectometry, and the shear relaxa…
The inter- and intramolecular ordering of the trimetallic nitride endohedral fullerene ${\text{Dy}}_{3}\text{N}@{\text{C}}_{80}$ with icosahedral cage symmetry ${I}_{h}$ on Cu(111) has been studied by scanning tunneling microscopy and synchrotron-based x-ray photoelectron diffraction (XPD). ${\text{Dy}}_{3}\text{N}@{\…
The polyaniline (PANI) base was ball-milled with silver nitrate in the solid state. Samples were prepared at various mole ratios of silver nitrate to PANI constitutional units ranging from 0 to 1.5 for three processing times, 0, 5, and 10 min. The emeraldine form of PANI was oxidized to pernigraniline, and the silver…
This paper describes a comparative study of induction motor testing standards IEEE 112 and newly published IEC 60034-2-1, primarily used in the United States and Europe, respectively. IEC 60034-2-1 has been refined from its earlier version IEC 60034-2 with reference to the IEEE 112. Six induction motors are tested fol…
Vertical ZnO nanorods/polyaniline (NRs/PAN) heterostructured films have been fabricated by a facile electrochemical deposition process and characterized by AFM, TEM, XRD, and photoluminescence spectroscopy. The predeposited PAN thin film on ITO substrates possesses porous surface morphology, which acts as a significan…
We report a unique type of spin-crossover phenomenon in a three-dimensional (3-D) Fe−Mo network with a cubic structure, Fe 2 [Mo(CN) 8 ]·(3-pyCH 2 OH) 8 ·3H 2 O (3-py = 3-pyridyl). This compound exhibits an extremely gradual Fe II spin-crossover over a wide temperature range, which is more gradual than the crossover a…
We synthesized new cyanoaromatics, benzo[b]triphenylene-9,14-dicarbonitrile (DBTP) 1a and a graftable derivative, 9,14-dicyanobenzo[b]triphenylene-3-carboxylic acid (DBTP-COOH) 1b, easily prepared from commercial reagents. Their photosensitizing properties were investigated. Hybrid porous silica monoliths loaded with…
Emulsion crystallization has been reported as an approach to controlling particle properties, and is part of a wider set of techniques that can be used to form spherical particles. In the pharmaceutical industry, spherical particles are known to present distinctive advantages in terms of flow and compression propertie…
X‐ray diffractometry, scanning electron microscopy, transmission electron microscopy, and an impedance analyzer were used to examine the Nb–Co codoping effects on the densification, crystalline phase, microstructure development, and dielectric–temperature characteristics of BaTiO 3 –(Bi 0.5 Na 0.5 )TiO 3 ceramics. The…