Materials Literature
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A second polymorphic form of a 1 : 2 : 3 pamoate : DABCO : water salt has been obtained by liquid-assisted grinding, and it is shown that interconversion between this salt and a salt with 1 : 1 : 2 stoichiometry is facile via liquid-assisted grinding with additional amounts of pamoic acid (to generate the 1 : 1 : 2 sa…
Controlled reductive assembly of capped Keggin anions [PMo(12)O(40)(ML(m))(n)](3-) has been achieved by reduction of [PMo(12)O(40)](3-) with sodium-mercury amalgam in the presence of metal halides, as exemplified by the rational syntheses of mono-capped [PMo(12)O(40){Co(MeCN)(2)}](3-) and bi-capped [PMo(12)O(40)(VO)(2…
The filling of hierarchical branched porous anodic alumina (PAA) templates with magnetic and metallic nanowires using pulsed electrodeposition is here addressed in detail. We show that the electrodeposition potential (and current) reveals clear anomalies when each generation of branched pores created by steady-state o…
The prediction of the charge mobility in conjugated organic systems is of great interest in order to evaluate their potential use as active materials in a wide class of devices.In this field, one of the most used approaches for modeling this process is the Marcus theory, where one of the key parameters to be calculate…
Abstract Solid catalysts consisting of polyoxometalates (POM) namely phosphotungstic acid H3PW12O40 (HPW) supported on a mesoporous sieve MCM‐41 have been prepared and characterized by FT‐IR, X‐ray diffraction, nitrogen adsorption and high resolution transmission electron microscope (HRTEM). The HPW/MCM‐41 with differ…
Achievable tunable left-handed metamaterials are physically designed and numerically characterized at terahertz (THz) frequency in this letter. The Lu2.1Bi0.9Fe5O12(LuBiIG) garnet films prepared by liquid phase epitaxy (LPE) method on a gadolinium gallium garnet (GGG) substrate are used to achieve negative permeabilit…
The surface morphology of CeO(2)(111) single crystals and silicon supported ceria films is investigated by non-contact atomic force microscopy (NC-AFM) and Kelvin probe force microscopy (KPFM) for various annealing conditions. Annealing bulk samples at 1100 K results in small terraces with rounded ledges and steps wit…
Si/SnSe2 multilayer films with different thickness of Si layers and monolayer SnSe2 film were prepared by radio-frequency magnetron sputtering system. X-Ray diffraction analysis revealed the change of phase structure with annealing temperature for the Si/SnSe2 multilayer films and SnSe2 films. It showed the inserting…
Multiferroic composite thin films prepared from ferrimagnetic zinc ferrite (ZFO) and ferroelectric barium titanate (BTO) show sizable magnetic exchange bias. After field cooling in +3 T, an exchange-bias field of about −37 mT for a 65% ZFO/35% BTO and of about −34 mT for a 35% ZFO/65% BTO composite is observed at 10 K…
Highly fluorescent Ag nanoclusters (NCs) were successfully prepared by a simple and nontoxic approach, and the as-prepared Ag NCs could be utilized for the AFu detection with a lower detection limit of 0.001 U L(-1).
The physical and electrochemical properties of strontium substituted cerium vandates in which a portion of the cerium cations have been substituted with transition metals (Ce 0.8 Sr 0.1 Cu 0.05 TM 0.05 VO 4−0.5x , TM = Ni or Co) were investigated and their suitability for use in solid oxide fuel cell (SOFC) anodes was…
In this study, we prepared ordered mesoporous phenolic resins templated by poly(ethylene oxide)-b-(ε-caprolactone) (PEO-b-PCL) diblock copolymers blended with a star PEO octa-functionalized polyhedral oligomeric silsesquioxane (PEO-POSS) homopolymer. Increasing the PEO-POSS content, and thereby increasing the PEO-to-P…
Palm based fly ash (PFA) is a solid waste of palm oil processing industry which contains silica components. These components are typically used to improve the mechanical properties of rubber-based products. This research aims to study the effect of the PFA as a filler on the morphology and properties of thermoplastic…
Cathodic reduction of aqueous MnO 4 − ions in the presence of various alkaline metals except for Na + ions led to the deposition of birnessite-type layered MnO 2 . The highest crystallinity was obtained when electrolyzed in a 2 mM KMnO 4 and 50 mM KCl at a constant potential of 0 V vs Ag/AgCl. The cathodic formation o…
A general and facile synthetic strategy for fabrication of a series of high-yield and uniform rare-earth oxysulfate hollow spheres is demonstrated as the first example via calcination corresponding rare-earth coordination compounds obtained using L-cysteine as a biomolecular template. Furthermore, the hollow spheres c…
We designed gold nanoparticles (AuNPs) capped with iodine and polyethylene glycol (PEG) to provide effective enhancement for X‐ray CT imaging. The methoxy PEG‐iodine‐capped AuNPs were prepared through the chemisorption of iodine and substitution of methoxy PEG‐SH onto the surface of gold nanoparticles, and severe aggr…
Glasses formed with heavy metal (atomic weight >100) oxides (HMO) have received significant attention because of their interesting physical and optical properties. In this perspective, bismuth (atomic weight = 209) oxide containing glasses is one of the most important members of this family. Bismuth oxide glasses are…
Graphene is a flat monolayer of carbon atoms arranged in a two-dimensional hexagonal lattice. It is the strongest material ever measured with strength exceeding more than hundred times of steel. However, the strength of graphene is critically influenced by temperature, vacancy defects (missing carbon atoms) and free e…
有稀土元素(RE ) 的高铬生铁(HCCI ) nanoparticles 或种体在扔的过程被制作。阶段作文和微观结构被 X 光检查衍射(XRD ) 和光显微镜学(OM ) 分别地分析。坚硬和影响坚韧被 Rockwel-hardmeter 和影响测试机器测试。然后，骨折的形态学被扫描电子显微镜学(SEM ) 研究。结果证明有是 M7C3 碳化物 + a-Fe 的 RE nanoparticles 或种体的增加的 HCCI 的阶段作文没显然变化。然而，主要 M7C3 碳化物形态学随 RE nanoparticles 的增加有大变化，它从长板条改变了到小粒或岛形状。当 RE nanoparticles 的内容是 0.4 wt.% 时，…
Plasma treatment is a widely used method in microfabrication laboratories and the plasticware industry to functionalize surfaces for device bonding and preparation for mammalian cell culture. However, spatial control of plasma treatment is challenging because it typically requires a tedious masking step that is prone…