Materials Literature
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An unprecedented guest-host redox strategy is developed to generate strong basicity on mesoporous silica, which breaks the tradition of thermally induced decomposition of precursors. New materials possessing ordered mesostructure, strong basicity, and excellent catalytic activity are thus successfully fabricated at a…
In this study, two types of functionalized multi-walled carbon nanotubes were dispersed in an epoxy resin system (SC-15) at room and elevated temperatures using a combination of sonication and high shear mixing methods to determine optimal mechanical and thermal properties. At first, 0.1 wt% - 0.3 wt% of amino-functio…
We correlate the localization of silver nanoparticles inside cells with respect to the cellular architecture with the molecular information in the vicinity of the particle surface by combining nanoscale 3D cryo-soft X-ray tomography (cryo-SXT) with surface-enhanced Raman scattering (SERS). The interaction of the silve…
Nitrogen-doped graphene with up to 22.1% N/C atom and 7.15 × 104 Sm−1 electrical conductivity was synthesized by ionic-liquid-assisted electrolysis with subsequent thermal annealing of the resultant ionic-liquid-functionalized graphene sheet.
Understanding of the influence of nanotextured surface topographies on surface-enhanced Raman scattering (SERS) is still rather limited, even after intensive research in recent years; this is mainly due to the absence of a synthesis system to control the surface morphologies on metal meso-/nanoparticles. Here, a facil…
We report a self-assembled metallo suprapolymer gel exhibiting remarkable self-healing features. The Ni2BTC metallo suprapolymer gels result from the complexation of Ni(2+) metal ions by a tritopic ligand (bis-terpyridine cyclam) in dimethylformamide (DMF) and an annealing step at 50 °C for 24 hours. The self-healing…
We present the high-resolution (HRES-MS) and ion-mobility (IMS-MS) mass spectrometry studies of icosahedral nanoscale polyoxometalate-based {L(30)}{(Mo)Mo(5)} Keplerate clusters, and demonstrate the use of IMS-MS to resolve and map intact nanoclusters, and its potential for the discovery of new structures, in this cas…
The properties of cubic (Pm3m, 221 space group) perovskite prototypes PbTiO3 (PTO), SnTiO3 (STO), and SnZrO3 (SZO) were investigated via first-principles calculation using the density functional theory as implemented in CASTEP computer code. The lattice parameters of PbTiO3 (as the reference compound) were calculated.…
Uniform-sized and monodisperse CeO2 mesoporous hollow nanospheres composed of ceria nanocrystals were synthesized via a template-free and surfactant-assisted benign hydrothermal route. On the basis of a time-dependent experiment, the precipitation–dissolution–renucleation–assembly and Ostwald ripening processes mechan…
A commercial aluminum alloy was subjected to severe plastic deformation through equal channel angular pressing (ECAP). The alloy contains a low volume fraction of α -AlFeSi located essentially at the grain boundaries. The corrosion behavior of the ECAP’ed alloy was investigated in NaCl solution using potentiodynamic p…
Abstract. Controlling the growth of zinc oxide nanowires is necessary to optimize the performances of nanowire-based devices such as photovoltaic solar cells, nano-generators, or light-emitting diodes. In this view, we investigate the nucleation and growth mechanisms of ZnO nanowires grown by metalorganic vapor phase…
This paper reports facile and cost effective methods for fabricating MoS 2 nanosheets and for assembling layered MoS 2 -graphene nanocomposites. The MoS 2 nanosheets were obtained by ultrasonicating commercial MoS 2 powder in N-methyl-pyrrolidinone (NMP). The MoS 2 -graphene nanocomposites were assembled by the vacuum…
The aim of this work was to investigate the effect of the cerium concentration on the morphology and anticorrosion performance of cerium-silane hybrid coatings on hot dip galvanized (HDG) steel substrates. 3-glycidoxypropyltrimethoxysilane (GPTMS) and bisphenol A (BPA) were employed as precursors to prepare the sol-ge…
Silver-based nanostructures were prepared through reduction/oxidation reactions of aqueous silver nitrate solutions mediated by extracts of red fruits of the piquin pepper (Capsicum annuum var. aviculare) at room temperature. Detailed morphological and microstructural studies using X-ray diffraction, conventional and…
A number of cyclic peptides including [FR]4, [FK]4, [WK]5, [CR]4, [AK]4, and [WR]n (n = 3–5) containing L-amino acids were produced using solid-phase peptide synthesis. We hypothesized that an optimal balance of hydrophobicity and charge could generate self-assembled nanostructures in aqueous solution by intramolecula…
In this work, a biologically catalysed CO2 mineralization process for the capture of CO2 from point sources was designed, constructed at a laboratory scale, and, using standard chemical process scale-up protocols, was modelled and evaluated at an industrial scale. A yeast display system in Saccharomyces cerevisae was…
The present work is a comparative evaluation of physical and biological properties of electrospun biodegradable fibrous scaffolds based on polycaprolactone (PCL) and its blend with polycaprolactone-polyethyleneglycol-polycaprolactone (CEC) with and without nanohydroxyapatite (nHAP) particles. The fiber morphology, por…
The paper reports robust ferromagnetic Cu-doped ZnO micron-scale polycrystalline films via spin-coating using high-quality doped nanocrystals. A reliable magnetic response is observed in the 900 °C vacuum annealed film without any ferromagnetic contribution from other sources. Post-annealing treatment in terms of atmo…
We synthesized uniform crimped microfibers with controlled dimensions using a microfluidic approach, whereby a liquid jet flows from a narrow channel into a wider channel. The liquid jet, sheathed by an immiscible non-reacting liquid, undergoes ultraviolet (UV)-initiated gelation upstream of the channel widening. At t…
7-(Fur-2-yl)benzotriazinyl 1 is the first example of a hydrazyl radical dimer with a thermally accessible triplet state. The triplet exciton (|D| = 0.018 cm(-1), |E| = 0.001 cm(-1)) was observed by solid-state VT-EPR spectroscopy between 5 and 140 K. VT crystallography, DFT calculations and magnetic susceptibility stu…