Materials Literature
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Residues of Phyllostachys pubescens bamboo obtained from central Louisiana, USA, were comprehensively investigated for use in liquefaction. The results showed that bamboo branches had the highest Klason lignin and ash content, about 26% and 2.75%, respectively. The epidermis layer sample had relatively higher carbohyd…
ZnO:Cl thin films grown on glass substrates at 200 °C by the pulsed laser deposition (PLD) technique using ZnO:Cl targets show preferential c-axis (0002) orientation having hexagonal wurtzite structure without secondary phases. The chlorine concentration in the ZnO:Cl thin films is varied from 1.04 to 7.28 at%. X-ray…
Toughening ceramics has been a long-standing challenge. By chemically infiltrating B4C into aligned carbon nanotubes (CNTs) sheets, we fabricate a novel CNT/B4C composite with a fracture strength approaching the theoretical maximum of B4C matrix. The CNT/B4C composites simultaneously possess a strongly bonded tube/mat…
The present study reports the influence of chemical and electrical treatments (CET) of Li-modified sodium potassium niobate [Li0.06(Na0.5K0.5)0.94NbO3, LNKN] piezo-biomaterial on in vitro bioactivity. The chemical treatment of LNKN substrate was performed by Ti sputtering, followed by immersion in NaOH aqueous solutio…
As a growth-dominated phase change material, Sb4Te (ST) has fast crystallization speed while thermal stability is very poor, which makes it unsuitable for application in phase change random access memory (PCRAM). After doping Ti, the crystallization temperature is greatly improved to 210.33 °C, which is much higher th…
Cross-plane thermal conductivity kth measurements of vertical stacks of FePt/C were used to estimate the in-plane thermal conductivity of Heat Assisted Magnetic Recording (HAMR) media that consist of columnar FePt grains segregated by thin C grain boundaries. FePt/C multilayers with varied repeat units and FePt layer…
In this work, the role of europium doping of glasses formulated in the ternary system ZnO – CdO – TeO 2 is described. The Eu ‐doped oxide glasses were prepared by the conventional melt‐quenching method and by using three different compositions. Structural studies reveal that there exists a good affinity between Cd and…
The consumption of canned food products from dented cans is not recommended by surveillance and consumer protection agencies due to the possibility of aluminium pick up, which may migrate from package to food/beverage. However, it is necessary to raise scientific data that will support any decision concerning the cons…
Surface plasmon resonance (SPR) is an interesting optical property that has been intensively studied in recent years. Herein, we report that the SPRs of gold nanorods (Au NRs) embedded in electrospun poly(vinyl alcohol) nanofibrous films can be manipulated via several approaches such as the change of Au NR percentage…
The optical properties of epitaxial perovskite-structure relaxor ferroelectric PbSc0.5Nb0.5O3 thin films are studied in broad spectral and temperature ranges by variable-angle spectroscopic ellipsometry. The films possess a metrically tetragonal crystal structure with a biaxial in-plane compressive strain of 0.1%–0.8%…
To explain the similarities between a glass and amorphous C-S-H, a C-S-H molecular structure with stoichiometry of (CaO)1.7(SiO2)1(H2O)1.9 is produced using a mixed reactive-nonreactive force field modeling. As the consequence of reactive modeling using REAXFF potential, part of water molecules in the interlayer spaci…
Highly porous carbon xerogels (CXGs) were synthesized to be used as support for PtRu nanoparticles. Metal particles were deposited on CXGs by means of the sulfite complex method for the first time. Catalysts so-obtained were submitted to thermal treatment in H2, at different temperatures, in order to increase the part…
NiCoMnAl thin films were deposited onto unheated substrates using dc magnetron co-sputtering. The microstructure of as-deposited films consisted of nanocrystals in an amorphous matrix and did not exhibit a martensitic phase transformation. After heat treatment, films crystallized into a B2 austenite phase, which exhib…
Understanding the mechanism of linear acene decomposition and its reactivity is a prerequisite for controlling the stability of acenes and their future applications. Previously, we suggested that long acenes may undergo polymerization since the polymerization product is thermodynamically more stable than the dimerizat…
A form of photoelectrode architecture suitable for inorganic semiconductor solar cells is reported. The developed architecture consists of hierarchically organized TiO 2 nanostructures with several tens of nanometer‐sized particles that have a large surface area and open channels with several hundred‐nanometer‐gaps pe…
Stabilize me: A metal oxide host with a trapped unstable {Mo36}-type polyoxomolybdate guest exhibits independent reduced diamagnetic building blocks and paramagnetic centers (both types with colors other than the dark blue of the Mo centers). The guest in such systems is stabilized especially by a hydrogen-bond networ…
Sponge-like Si nanostructures embedded in SiO2 were fabricated by spinodal decomposition of sputter-deposited silicon-rich oxide with a stoichiometry close to that of silicon monoxide. After thermal treatment a mean feature size of about 3 nm was found in the phase-separated structure. The structure of the Si-SiO2 nan…
We characterized the microwave-frequency (0.5–6 GHz) dielectric properties of aqueous dispersions of pristine and purified single-walled carbon nanotubes (SWCNTs). SWCNTs were synthesized by two CVD-based methods and purified using two acid-based purification methods. We characterized the structural and chemical diffe…
A 3D organic-inorganic hybrid compound, (2-MepyH)3[{Fe(1,10-phen)3}3][{Pr4Sb12O18(OH)Cl(11.5)}(TDC)(4.5)({Pr4Sb12O18(OH)Cl(9.5)} Cl)]·3(2-Mepy)·28H2O (1; 2-Mepy=2-methylpyridine, 1,10-phen=1,10-phenanthroline, H2TDC=thiophene-2,5-dicarboxylic acid), was hydrothermally synthesized and structurally characterized. Unusua…
We use first-principles molecular dynamics to study the electrochemical solid-solid interface between lithium metal and lithium electrolyte LiBH4. An external bias is applied by using an effective screening medium. We observe large polarization in the LiBH4, because the lithium cations in LiBH4 are shifted more on one…