Materials Literature
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The decomposition pathway is crucial for the applicability of LiBH(4) as a hydrogen storage material. We discuss and compare the different decomposition pathways of LiBH(4) according to the thermodynamic parameters and show the experimental ways to realize them. Two pathways, i.e. the direct decomposition into boron a…
A facile “hydrothermal-assisted crystallization” route for the synthesis of hierarchical magnetic yolk–shell microspheres with mixed barium silicate and barium titanium oxide shells has been developed. Various yolk–shell microspheres with different shell thicknesses and core sizes have been successfully synthesized by…
We propose a large-area SERS device with efficient fluorescence quenching capability. The substrate is based on anodic porous alumina templates with various pore size and wall thickness as small as 15 and 36 nm, respectively. The nano-patterned SERS substrate, with excellent control and reproducibility of plasmon-pola…
As-prepared samples of YPO(4):2Dy nanoparticles prepared by polyol route show strong blue luminescence because of strong host contribution, whereas 500 and 900 °C annealed samples show cold and warm white luminescence, respectively because of different energy transfer rates from host to Dy(3+). Li(+) co-doping improve…
KLaF(4), as a good host matrix for trivalent lanthanide (Ln(3+)) ions to fabricate upconversion (UC) or downconversion (DC) phosphors, has been rarely reported. Herein, monodisperse (∼10 nm) cubic-phase Ln(3+)-doped KLaF(4) nanocrystals (NCs) were synthesized via a facile thermal decomposition method. Upon excitation…
Unusually long bonds or short intermolecular contacts occur in the title compounds reminiscent of pancake bonding. Pancake bonding interactions seem analogous to π-stacking interactions, but they display much shorter contact distances than normally seen in van der Waals (vdW) dimers. The interpretation of these SN and…
CdTe/CdS core(small)/shell(thick) quantum dots (QDs) with tunable near-infrared fluorescence were directly synthesized in aqueous phase through a facile one-step strategy. The QDs possessed bright fluorescence, ultrasmall size, excellent photostability and good biocompatibility. Their applicability for biological imag…
The authors have performed a detailed study of the time stability and reproducibility of submicron Al/AlOx/Al tunnel junctions, fabricated using standard double angle shadow evaporations. The authors have found that by aggressively cleaning the substrate before the evaporations; thus preventing any contamination of th…
Carbon nanotubes (CNTs) having pristine structure (i.e. structure without any defect) have very high mechanical properties. However, CNTs suffer from defects which can appear during purification, production or deliberately introduced by chemical treatment. The present study is based on comparative investigation of eff…
We present the equilibrium configuration of amphiphilic ellipsoids and amphiphilic dumbbells with asymmetric shape (i.e., unequal surface areas for apolar and polar sides) and surface wetting properties at an oil–water interface. The equilibrium configurations are obtained by minimizing the attachment energy of each a…
Biomimetic fabrication has long been considered a short cut to the rational design and production of artificial materials or devices that possess fascinating properties, just like natural creatures. Considering the fact that graphene exhibits a lot of exceptional properties in a wide range of scientific fields, biomim…
Multifunctional, luminescent and magnetic systems were synthesised by a co-precipitation method and broadly investigated. In our studies down- and visible up-conversion of Yb3+ and Tb3+ doped GdPO4 nanocrystals were observed. The synthesised nanomaterials were analysed by X-ray diffraction (XRD) and transmission elect…
Cellulose nanocrystals (CNC) were grafted with photocleavable polymeric chains using Atom Transfer Radical Polymerisation (ATRP). The nanoparticle synthesis relies on two main steps: first the grafting of a photosensitive moiety bearing an ATRP initiating site onto the surface of CNC, followed by surface initiated ATR…
This study has been performed on the synthesis of a large area, uniform graphene film on tilted copper foil against gaseous flow in a chemical vapor deposition (CVD) system. The copper foil on which the graphene grows is tilted against gaseous flow in the CVD process, which promotes the uniformity of graphene due to g…
A simple eco-friendly carbohydrate gelator for phase selective gelation of oils from oil–water mixtures at room temperature, dye removal for water purification and X-ray crystal structure in the monohydrate form.
Graphene/porous cobalt nanocomposite was successfully prepared through a facile method, whose hydrogen storage capacity was up to 241.9 mA h g−1 at room temperature, higher than those of graphene and commercial cobalt.
This study presents a systematic detailed experimental and theoretical investigation of the electronic properties of size-controlled free and γ-Al(2)O(3)-supported Pt nanoparticles (NPs) and their evolution with decreasing NP size and adsorbate (H(2)) coverage. A combination of in situ X-ray absorption near-edge struc…
Quantum cutting (QC) of one visible photon into two infrared ones has been reported for the lanthanide ion couple (Tm(3+), Yb(3+)) in a variety of host lattices. The mechanism responsible for QC was assumed to be a cooperative energy transfer (ET) process from Tm(3+) to two Yb(3+) ions, however, no solid evidence was…
Self-assembled, monodispersed, uniform, and flower-like γ-AlOOH hierarchical superstructures have been synthesized in high yield via a simple, economical and environmentally friendly, hydrothermal route. The product possesses a large BET surface area of 145.5 m2 g−1. It is found that Pb(II) and Hg(II) ions can be quic…
Columnar liquid crystals with a C3 star-shaped heteroaromatic nitrogen-rich core, i.e. 2,4,6-tris(1′,2′,3′-triazol-4′-yl)-1,3,5-triazine (TTT), that show luminescence and solvatofluorochromism, and are also electron-acceptors are described. The core has been extended with polyalkoxybenzoyloxyphenyl groups situated at…