Materials Literature
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The formation of onion-like fullerene and chemically converted graphene-like nanosheets from low-quality coals were observed during an oxidation-cum-extraction (OCE) process.
A series of AIEE-active difluoroboron β-diketonate complexes derivatives exhibit high-contrast mechanochromism, polymorphism-dependent fluorescence, and extremely high fluorescent quantum yields which could be as promising stimuli-responsive materials.
Due to its abundance, silicon is the preferred solar-cell material despite the fact that many silicon allotropes have indirect band gaps. Elemental silicon has a large impact on the economy of the modern world and is of fundamental importance in the technological field, particularly in the solar cell industry. Looking…
The cooperative action between the redox ability of MnO <sub>x</sub> layer and the acidity properties of the HZSM-5 zeolite over MnO <sub>x</sub> /HZSM-5 catalysts significantly promotes the catalytic oxidation of toluene.
AIM: In the present study, we report a cost-effective, eco-friendly, and an efficient alternative method for large scale production of silver nanoparticles (AgNPs) from Adansonia digitata fruit pulp extract. The study mainly focused on the synthesis, characterization, and antimicrobial properties of AgNPs. MATERIALS A…
Post-treatment using 3 M NaOH at 60 °C for 1 h improves the performance of plasma electrolytic oxidation coated magnesium.
The electronic and magnetic properties of n- and p-type impurities by means of group V and VII atoms substituting sulfur in a MoS <sub>2</sub> monolayer were investigated using first-principles methods based on density functional theory.
The layered semiconductor SnS2 spurs much interest for both intercalation and optoelectronic applications. Despite the wealth of research in the field of metal dichalcogenides, the structure-property relationship of this compound remains unclear. Here we present a thorough study combining single-crystal X-ray diffract…
A novel film electrode was assembled via a simple filtration process, with an rGO paper as the substrate and Ni-Mn LDH/graphene superlattice composites as the functional layer. The electrode presented typical pseudocapacitive behaviours with excellent rate property and cycle stability.
In this paper two groups supporting different views on the mechanism of light induced polymer deformation argue about the respective underlying theoretical conceptions, in order to bring this interesting debate to the attention of the scientific community. The group of Prof. Nicolae Hurduc supports the model claiming…
Black phosphorous (BP), the most thermodynamically stable allotrope of phosphorus, fills up the lacuna left by other two-dimensional materials with a band gap from 0.3 to 2 eV.
We demonstrate in this paper the feasibility to elaborate rare-earth free permanent magnets based on cobalt nanorods assemblies with energy product (BH)max exceeding 150 kJ m(-3). The cobalt rods were prepared by the polyol process and assembled from wet suspensions under a magnetic field. Magnetization loops of dense…
This paper proposes and analyzes two fully discrete mixed interior penalty discontinuous Galerkin (DG) methods for the fourth order nonlinear Cahn--Hilliard equation. Both methods use the backward Euler method for time discretization and interior penalty DG methods for spatial discretization. They differ from each oth…
In this work, sharp-interface limits for the degenerate Cahn--Hilliard equation with a polynomial double-well free energy and a mobility that vanishes at the minima of the double well are derived. For the choice of a quadratic mobility, the leading order sharp-interface motion is not governed by pure surface diffusion…
Agradecimentos: This work was supported in part by the Brazilian Agencies CAPES, CNPq and FAPESP. The authors thank the Center for Computational Engineering and Sciences at Unicamp for financial support through the FAPESP/CEPID Grant # 2013/08293-7. J. M. S. acknowledges the support from CAPES through the Science With…
Although endovascular stenting has been used as an interventional therapy to treat cardio- and cerebro-vascular diseases, it is associated with recurrent vascular diseases following stent thrombosis and in-stent restenosis. In this study, a metallic stent was coated with dopamine-conjugated hyaluronic acid with differ…
A single cell with a 2.5 wt% MgO-modified Ni–SDC anode exhibits great long-term stability in humidified CH <sub>4</sub> .
The tetranuclear Ni <sup>II</sup> complexes with the Ni <sub>4</sub> O <sub>4</sub> cubane-like core ( <bold>1</bold> ) and the Ni <sub>4</sub> O <sub>6</sub> defective dicubane core ( <bold>2</bold> ) were studied, and the latter identified as a first single-molecule magnet with such topology.
Three cysteine based Schiff bases were synthesized and their corrosion inhibition properties on mild steel in 1 M HCl solution were evaluated using weight loss and electrochemical studies and quantum chemical calculations.
Two-dimensional semiconductors with layer thicknesses of a few nanometers to tens of nanometers have attracted tremendous research interest due to their fascinating electrical, optical, and optoelectronic properties and technologically important applications. In this work, two dimensional ternary ZnIn2S4 nanosheets wh…