Materials Literature
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This work reports a X-ray absorption spectroscopy (XAS) study under “in operando” conditions of the structural and chemical changes undergone by WO 3 and W x Si y O z thin films used as electrochromic cathodes. The electrochromic films were prepared by magnetron sputtering deposition at oblique angles and then charact…
This study describes an integrated NH3 sensor based on a hydrogenated nanocrystalline diamond (NCD)-sensitive layer coated on an interdigitated electrode structure. The gas sensing properties of the sensor structure were examined using a reducing gas (NH3) at room temperature and were found to be dependent on the elec…
By merging bottom-up and top-down strategies we tailor graphene's electronic properties within nanometer accuracy, which opens up the possibility to design optical and plasmonic circuitries at will. In a first step, graphene electronic properties are macroscopically modified exploiting the periodic potential generated…
The combination of gasification and solid oxide fuel cells (SOFCs) has the potential to improve efficiency and reduce emissions for fuels, such as coal and biomass. Gasification syngas is a mix of fuel gases containing contaminants, such as sulfur and tar, which have the potential to cause degradation of the materials…
ABSTRACT The degradation of uncompatibilized and compatibilized PP/PA‐6 (70/30 wt %) with PP‐ g ‐MA under accelerated UV light was investigated using Fourier Transform Infrared Spectroscopy (FTIR) spectroscopy, melt flow index (MFI) tester, tensile test, differential scanning calorimetry (DSC), thermogravimetric analy…
Biodegradable polymers are frequently obtained from ring‐opening polymerizations (ROPs). Applications in the biomedical sector require medical‐grade materials free of any toxic residues, as well as polymers with well‐defined properties. Thus, the selection of nontoxic catalysts for ROP, which allow for well‐controlled…
Two-dimensional hexagonal mesoporous silica thin films of SBA-15 were synthesized on Si substrates via dip-coating using an evaporation-induced self-assembly process. The effect of the withdrawal speed on the thicknesses, one-dimensional pore alignments, and two-dimensional hexagonal pore arrays of the films was eluci…
Development of smart bioactive scaffolds is of importance in tissue engineering, where cell proliferation, differentiation and migration within scaffolds can be regulated by the interactions between cells and scaffold through the use of growth factors (GFs) and extra cellular matrix peptides. One challenge in this are…
Potassium cation is introduced into the {(P <sub>4</sub> Mo <sub>6</sub> } systems, leading to 18-connected assemblies, which represents the highest connection of the POMs and shows bifunctional electrocatalytic activities and excellent photocatalytic activities.
A unique example of discrete molecular entity Nd(y)Er(x)Yb(3-(x+y))Q9 (1) (Q = quinolinolato) containing three different lanthanides simultaneously emitting in three different spectral regions in the NIR, ranging from 900 to 1600 nm, has been synthesized and fully chararacterized. A simple molecular strategy based on…
Novel poly(indole-7-carboxylic acid) nanowires shows remarkable specific capacitance (373.2 F g <sup>−1</sup> ) and excellent cycle life (91% retention after 1000 cycles).
A compact large-signal model, called Compact Carbon Nanotube Model (CCAM), is presented that accurately describes the shape of DC and small-signal characteristics of fabricated carbon nano-tube FETs (CNTFETs). The new model consists of computationally efficient and smooth current and charge formulations. The model all…
ABSTRACT The self‐nucleation behavior of olefinic blocky copolymer (OBC) / organically modified montmorillonite (OMMT) nanocomposites with a novel collapsed clay structure (c‐OMMT) was studied and compared with that of the nanocomposites with an intercalated clay structure (OBC/i‐OMMT). Their behaviors appear differen…
Metal nanoparticles are commonly used for a wide range of applications. This paper presents a novel synthesis method using plasma vapor deposition and a subsequent thermal treatment to produce homogeneous particles within the nanometer range. A combination of high resolution transmission electron microscopy and scanni…
Relaxation of highly swollen (∼20–80%) ultrathin (≤21 nm) polystyrene films exposed to supercritical carbon dioxide (at 35 °C and 80 bar) is studied by monitoring the evolution of thickness as a function of time using X-ray reflectivity. Correlations between their swelling (that determines the departure from equilibri…
Novel ketal-based PEGylated chitosan conjugates (PCK) were fabricated as pH-sensitive micelles for curcumin delivery which could be released at tumor pH conditions and show good behavior <italic>in vivo</italic> .
In this paper, we have studied the sensor reduction problem for two-cell selective catalytic reduction (SCR) systems with applications to Diesel-engine-powered automotive systems. For the purpose of constructing feedback control loops, three NOx sensors and three ammonia sensors are necessary for the ideal case. Howev…
While the ordering of amino acids in proteins and peptide-based materials is known to affect their folding patterns and supramolecular architectures, tailoring self-assembly behavior in stimuli responsive peptides by isomerizing a peptide sequence has not been extensively explored. Here, we show that changing the posi…
Laser emission from nanowire-based devices is important for nanophotonic applications. Here we report the observation of optically pumped laser emission from ring resonators formed by quantum-dot-doped single polymer nanowire. By assembling a 500 nm diameter single polymer nanowire with an optical loss coefficient of…
Abstract The high-pressure behavior of a synthetic mordenite-Na (space group: Cmcm or Cmc21) was studied by in situ single-crystal synchrotron X-ray diffraction with a diamond anvil cell up to 9.22(7) GPa. A phase transition, likely displacive in character, occurred between 1.68(7) and 2.70(8) GPa, from a C-centered t…