Materials Literature
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Biochar properties can be significantly influenced by feedstock source and pyrolysis conditions; this warrants detailed characterisation of biochars for their application to improve soil fertility and sequester carbon. We characterised 11 biochars, made from 5 feedstocks [Eucalyptus saligna wood (at 400°C and 550°C bo…
This study proposes a reflective dual-mode liquid crystal display (RD-LCD) that can be operated in memory mode or dynamic mode according to the image contents. The proposed RD-LCD needs three states to represent dark and bright states, while a general reflective liquid crystal display has two states. Nevertheless, a c…
Abstract We investigate the mesoscopic resistance fluctuations (MRFs) that, as we showed previously, cause the exponentially decaying low‐temperature resistance anomaly in graphene monolayers. We determine autocorrelation functions and power spectra for the MRFs, finding that the fluctuations have shorter periods (as…
Fluorescence of semiconducting single-walled carbon nanotubes (SWNTs) normally exhibits diameter-dependent oxidative quenching behaviour. This behaviour can be changed substantially to become an almost diameter-independent quenching phenomenon in the presence of electron-withdrawing nitroaromatic compounds, including…
Kinetic studies for the non-isothermal decomposition of unirradiated and γ-irradiated silver acetate with 10(3) kGy total γ-ray doses were carried out in air. The results showed that the decomposition proceeds in one major step in the temperature range of (180-270 °C) with the formation of Ag(2)O as solid residue. The…
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This work focuses on improving the thermal stability of Mg nanoparticles (NPs) for use in hydrogen storage. Three ways are investigated that can achieve this goal. (i) Addition of Cu prevents void formation during NP production and reduces the fast evaporation/voiding of Mg during annealing. (ii) Alloying can prevent…
A matrix with extensively interconnected channels is an important feature to pursue ceramic membrane technology. This work attempts an alternative pore‐forming strategy through utilizing in situ generated poly( p ‐phenylene terephthalamide) (PPTA) nanorods as a pore former. Different from the conventional means, this…
Abstract The single‐crystal Raman spectra of minerals brandholzite and bottinoite, formula M[Sb(OH) 6 ] 2 •6H 2 O, where M is Mg +2 and Ni +2 , respectively, and the non‐aligned Raman spectrum of mopungite, formula Na[Sb(OH) 6 ], are presented for the first time. The mixed metal minerals comprise alternating layers of…
The dielectric properties of LaMn 1− x Fe x O 3 (LMFO, 0.1≤ x ≤0.5) under magnetic fields and electrical biases have been studied. A considerable low‐field magnetodielectric (MD) effect is observed for x ≤0.2, but it is suppressed by further Fe substitution. Besides the giant MD effect, the dielectric constants can al…
A combined exhaust gas aftertreatment system, consisting of a diesel oxidation catalyst (DOC), an NO x storage and reduction catalyst (NSRC, which also is called lean NO x trap, LNT), and a catalyst for selective catalytic reduction of NO x by NH 3 (NH 3 -SCR) is studied experimentally. The catalyst samples are placed…
ZnO films were grown by metalorganic chemical vapor deposition using the repeated temperature modulation in an H2 ambient. The crystalline quality, as defined by the full-width at half-maximum of the ω (101¯1) reflection, was found to be correlated with the photoluminescence (PL) lifetime at 300 K. The fine structure…
Scattering of x-rays enhanced by an electric dipole–electric quadrupole (E1–E2) event probe parity-odd atomic multipoles at the heart of many current theories of complex materials, e.g., Mott–Hubbard insulators and multiferroics. We achieve a complete decomposition of the E1–E2 scattering amplitude at spin–orbit split…
The growth, phase separation, crystallization behavior, and electrical properties of various Ge-doped Sb−Te thin films were examined. The films were deposited by combined plasma-enhanced chemical vapor and atomic layer depositions at a wafer temperature of 150 °C using Ge(i-C 4 H 9 ) 4, Sb(i-C 3 H 7 ) 3, and Te(i-C 3…
A method is proposed to generate entanglement between two distant atoms and to preserve the entanglement for a long time by using the properties of refocusing and phase compensation of left-handed (negative-index) materials and spontaneous emission. A distance of ten wavelengths in our method compared with less than o…
In this paper, mesoporous Eu2O3 microspheres and Eu2O3 nanoparticles-wires were synthesized and characterized by XRD SEM, and TEM. By means of adjusting synthetic parameters, two kinds of Eu2O(CO3)2H2O precursors with sphere-like and wire-like morphology were obtained respectively. By calcinating the precursors at 650…
A complex perovskite Ba(Mg 1/3 Ta 2/3 )O 3 (BMT) ceramic sample with an almost ideal ordering of B‐site cations was prepared by the conventional solid‐state reactions and its infrared (IR) reflective spectrum in the range 50–5000 cm −1 was measured at room temperature. IR symmetry coordinates and their polar direction…
The localized ultraviolet photoresponse in single bent ZnO micro/nanowires bridging two Ohmic contacts has been investigated. The ZnO micro/nanowire has a higher photoresponse sensitivity of about 190% at the bent region (bending strain: about 4%) than that at the straight region (about 50%). The rise and decay time c…
Miscibility and crystallization behaviors of poly(butylenes succinate) (PBS) and poly( l -lactic acid) (PLLA) segments in their multiblock copoly(ester urethane) were investigated by differential scanning calorimetry (DSC), polarized optical microscopy (POM), and wide-angle X-ray diffraction (WAXD). The single glass t…
Chitosan-polyvinyl alcohol (PVA) blend nanofibrous webs were fabricated in different blend ratios through electrospinning procedures. From scanning electron microscopy (SEM) results, 25/75 blend ratio of chitosan-PVA was selected for biological studies. In vivo studies were carried out on the dorsum of rats of two typ…