Materials Literature
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A Na3V2O2(PO4)2F/reduced-graphene-oxide (RGO) sandwich structure has been synthesized by a facile one-step solvothermal method. Cubic Na3V2O2(PO4)2F nanoparticles are homogeneously trapped between conductive RGO sheets during its growth and assembled into a compact sandwich structure, which allows the electrically ins…
We report an approach to fully visualize the flow of two immiscible fluids through a model three-dimensional (3-D) porous medium at pore-scale resolution. Using confocal microscopy, we directly image the drainage of the medium by the nonwetting oil and subsequent imbibition by the wetting fluid. During imbibition, the…
Controllable drug delivery is one of the important ways for the therapy of bone cancer. Conventional mesoporous silica nano-particles may lack dual properties for combining controllable delivery of anti-cancer drugs and bone-forming bioactivity for bone cancer therapy. The aim of this study is to synthesize mesoporous…
Nano-size non- and amino-functionalized flexible crystalline metal-organic frameworks (MOFs) MIL-53(Al) and NH2-MIL-53(Al), two co-polyimides 6FDA/ODA-DAM (1 : 1 and 1 : 4) and cross-linked co-polyimide 6FDA-ODA-DAM (1 : 1, 2% agent cross-linking APTMDS) were used to prepare mixed matrix membranes (MMMs) whilst membra…
We report that the oxygen reduction reaction (ORR) activities of (001)-oriented manganese perovskite films decrease from 10 to 1 nm by more than an order of magnitude, which can be attributed to the barrier associated with interfacial band bending that impedes electron transfer to the electrolyte, and reduction of Mn3…
Controlling the outcome of reactions is a central issue of chemical research. Physical tools can achieve this if they are able to precisely dissociate specific bonds of a molecule. However, to control synthesis, such tools must induce the formation of new bonds between two reactants to yield a more complex product. In…
The magnetic properties of iron oxide nanoparticles govern their relaxivities and efficacy as contrast agents for MRI. These properties are in turn determined by their composition, size and morphology. Herein we present a systematic study of the effect of particle size and shape of magnetite nanocrystals synthesized b…
A detailed study of the electronic and geometric structure of V2O5 and its X-ray spectroscopic properties is presented. Cluster models of increasing size were constructed in order to represent the surface and the bulk environment of V2O5. The models were terminated with hydrogen atoms at the edges or embedded in a Mad…
Toluene was discovered as the structure template for the synthesis of large-cage RHO-type zeolitic imidazolate frameworks (ZIF-11 and ZIF-12) in an alcohol-based solution where benzimidazole-toluene interactions play a decisive structure-directing role; otherwise it leads to small-cage SOD-type ZIF-7 and ZIF-9 without…
Metal–organic frameworks (MOFs), with large surface area and selective gas adsorption capability, can be the promising additives in mixed matrix membranes (MMMs) for potential gas separation. In this study, mixed matrix membranes with dispersed Cu-BTC [Cu3(BTC)2] have been fabricated and employed for gas separation. T…
“Accelerated aging” is a simple and conceptually novel methodology for the synthesis of functional metal–organic materials, which seeks to provide a scalable, mild and environmentally-friendly alternative to solution-based or mechanochemical syntheses. Accelerated aging draws inspiration from slow processes of geologi…
Three-dimensional network structured α-Fe2O3 was prepared by a facile chemical corrosion of a stainless steel plate followed by thermal oxidation. When the architecture was directly used as an electrode for lithium ion batteries (LIBs), a high reversible capacity of 858.2 mA h g−1 was obtained at a current density of…
Air-stable, surface-oxide free Cu nanoparticles are, for the first time, synthesized by surrounding completely the Cu surface with oleic acid incorporated as a capping molecule. XPS analysis, in conjunction with TEM analysis, revealed that the oleic acid is chemisorbed to the Cu surface via a chemical interaction wher…
Bi(4)Ti(3)O(12) nanofibers with diameters of 50-100 nm have been fabricated for the first time through a simple and economical technique of electrospinning combined with subsequent calcination. The as-formed Bi(4)Ti(3)O(12) nanofibers are porous and composed of inter-linked nanoparticles of 30-50 nm in size. They exhi…
In the present study, a theoretical model was used to examine factors affecting the filtration characteristics of filters used for respiratory protection. This work was designed to support the particulate filter test requirements established in 1996. The major operating parameters examined in this work include face ve…
Substrate modification by an ultrathin ZnO layer followed by surface activation promotes homogeneous surface nucleation and the growth of a low-defect ZIF-8 tubular membrane that exhibits superb gas permeation and permselectivity.
Mass spectrometry (MS) has emerged as an important tool for studying anticancer metallodrugs in complex biological samples and for characterising their interactions with biomolecules and potential targets on a molecular level. The exact modes-of-action of these coordination compounds and especially of next generation…
Polyaniline/graphene oxide (PANI-GO) fibrous nanocomposites have been prepared and the electrochemical catalytic activity towards the electro-oxidation of ascorbic acid (AA), Dopamine (DA) and Uric acid (UA) has been investigated. The nanocomposites were synthesized via an in situ chemical polymerization method. The m…
We report the construction and electrochemical performance of a high power Li-ion hybrid electrochemical capacitor (Li-HEC) using monoclinic TiO2-B nanorods as anodes with activated carbon cathodes. First, TiO2-B nanorods are synthesized by a conventional hydrothermal approach and a subsequent ion-exchange reaction wi…
Localized surface plasmon resonance (LSPR) of noble metal nanoparticles (a.k.a. plasmonic nanoparticles) opens up a new horizon for advanced biomolecule sensing. However, an effective and practical sensing system still requires meticulous design to achieve good sensitivity and distinctive selectivity for routine use a…