Materials Literature
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Abstract Layered transition‐metal dichalcogenides (TMDs) have shown promise to replace carbon‐based compounds as suitable anode materials for Lithium‐ion batteries (LIBs) owing to facile intercalation and de‐intercalation of lithium (Li) during charging and discharging, respectively. While the intercalation mechanism…
Osteosarcoma is among the most common cancers in young patients and is responsible for one-tenth of all cancer-related deaths in children. Surgery often leads to bone defects in excised tissue, while residual cancer cells may remain. Degradable magnesium alloys get increasing attention as orthopedic implants, and some…
Graphene Quantum Dots (GQDs) are considered to be a new class of materials with distinctive photoluminescence and low toxic level properties. Herein, we have reported the preparation of GQDs at different pH (pH 5, 8, 10, and 14) from pyrocatechol. UV-Visible absorption and normalized fluorescence spectra were applied…
Amorphous carbon films with a high hardness usually suffer from high internal stress. To deposit films with a hard top surface but reduced internal stress, a simple bilayer approach was used. Films were prepared by plasma source ion implantation, using only hydrocarbon precursors. The single layer with the highest har…
Introducing oxygen vacancy into oxides has become an effective strategy for enhancing the electrochemical performance. Herein, a series of identical two-dimensional BiOI nanosheets with various concentration of oxygen vacancies are rationally fabricated through a facile ion-exchange and annealing process under Ar atmo…
The structural, mechanical, and electronic properties, as well as stability, elastic anisotropy and effective mass of AlN/GaN/InN in the Pmn21 phase were determined using density functional theory (DFT). The phonon dispersion spectra and elastic constants certify the dynamic and mechanical stability at ambient pressur…
Abstract Cu‐exchanged LTA‐type aluminosilicate catalyst has been considered as an efficient catalyst for the selective catalytic reduction of NO x with ammonia (NH 3 ‐SCR). However, expensive organic structure‐directing agents (OSDAs) and the corrosive fluoride medium are inevitably used to synthesize LTA‐type molecul…
Abstract Macromolecular crowding is known to have a significant impact on the aggregation and folding of proteins. In this study, the role of different macromolecular crowders such as polyethylene glycol (PEG 200 and PEG 6000) and dextran (dextran 6000 and 70000) on the self‐assembly of silk fibroin protein is explore…
Rare earth Y 2 O 3 /Al 2 O 3 ceramic coatings were prepared on 6063 aluminum alloy via micro-arc oxidation. The corrosion and friction properties of the substrates were enhanced. Scanning electron microscopy results showed that the number of “crater” holes increased and decreased, and the diameter of micropores first…
The corrosion mechanism and behavior of Q235 steel treated with sodium lignosulfonate and a mixture of sodium lignosulfonate and sodium silicate inhibitors in simulated concrete pore (SCP) solutions containing 0.08-mol/L NaCl were evaluated using polarization methods, electrochemical impedance spectroscopy, scanning e…
Due to the unique physicochemical properties, heteroatom doping of porous carbon has attracted wide attention. However, the complicated synthesis process and high cost limit its mass production. In this work, nitrogen and oxygen co-doped porous carbon materials (N-O-PCMs) derived from pine mushroom (PM) were prepared…
BACKGROUND: Currently, considerable efforts to standardize methods for accurate assessment of properties and safety aspects of nanomaterials are being made. However, immunomodulation effects upon skin exposure to nanomaterial have not been explored. OBJECTIVES: To investigate the immunotoxicity of single-wall carbon n…
Polyurethane (PU) is a synthetic polymer obtained by polycondensation process of isocyanates and polyols, and for some cross-linked products with a third component as an extender. It is one of the most versatile macromolecular compounds, and it contains soft and hard segments. Beside (PU)'s physicomechanical and chemi…
Layered-MnO2/activated carbon composites were prepared by simply mixing activated carbons and Mn (NO3)2 solution, followed by heat treatment at 300 °C in order to develop high-performance and cost-effective active materials for supercapacitor electrodes. The effects of the loading mass of MnO2, the surface chemistry a…
The corrosion behavior of Fe-base alloy in H 2 SO 4 acid at different concentrations was evaluated. The effect of sodium tungstate inhibitor on Fe-base alloy in 10 % H 2 SO 4 solutions was evaluated by using weight loss and potentiodynamic polarization methods along with scanning electron microscope and energy dispers…
dielectric layer, is proposed and studied by numerical simulation. The simulated results show that the absorptivity of the absorber reaches 90% in the range of 0.91-1.86 THz, and the normalized bandwidth of the absorptivity is 68.6% under normal incidence. In the simulation, the effects of the geometric parameters of…
Summary Edible packaging from hydroxypropyl cassava starch with different degrees of substitution (DS), agar and maltodextrin films was produced by conventional cast extrusion. Microstructures showed hydrophobic agar aggregates (100–200 µm) dispersed in film matrices, giving nonsmooth surfaces that enhanced wettabilit…
In this work, a first study on kinetics and thermodynamics of thermal decomposition for synthesis of doped LiMn2O4 nanoparticles is presented. The effect of Mg doping concentration on thermal decomposition of synthesis precursors, prepared by ultrasound-assisted Pechini-type sol–gel process, and its significance on nu…
Abstract To develop strategies for efficient photo‐electrochemical water‐splitting, it is important to understand the fundamental properties of oxide photoelectrodes by synthesizing and investigating their single‐crystal thin films. However, it is challenging to synthesize high‐quality single‐crystal thin films from c…
Film blowing of Poly(ethylene terephthalate) (PET) is challenging due its inherently low melt viscosity and poor melt strength. In this study, it is shown how the rheological properties of a commercial PET can be altered by reactive extrusion using either pyromellitic dianhydride (PMDA) or a multifunctional epoxy (Jon…