Materials Literature
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A very simple and versatile polymer assembly approach was developed. We use methoxy-mercapto-poly(ethylene glycol) (mPEG-SH) to conjugate multiple Au shapes to form dense Au monolayer films (MLFs) with 5 nm gaps and generate gigantic enhancement. The results of the discrete dipole approximation (DDA) method to calcula…
The performance of pseudocapacitors usually depends largely on careful manipulation of nano-architectures and suitable composition of the active materials. Herein, NiTi layered double hydroxide (LDH) thin films with uniform density were synthesized by a process including two hydrothermal treatment steps and the compos…
Gold nanoparticles were deposited on carbon nanotubes to provide access to a nanohybrid structure which was involved in the aerobic oxidation of alcohols. The nanohybrid-catalyzed reaction was shown to be highly efficient under mild conditions (i.e. room temperature, air) and selective oxidation of alcohols to the cor…
An existing phase-fieldmodel of two immiscible fluids with a single soluble surfactant present is discussed in detail. We analyze the well-posedness of the model and provide strong evidence that it is mathematically ill-posed for a large set of physically relevant parameters. As a consequence, critical modifications t…
Relatively low quantum yield (QY), time-consuming scanning and strong absorption of light in tissue are some of the issues present in the development of upconversion nanoparticles (UCNPs) for biomedical applications. In this paper we systematically optimize several aspects of optical excitation of UCNPs to improve the…
In this article, rare earth (RE) ion doped β-NaGdF4 crystals with multicolor up-conversion (UC) emissions and paramagnetic properties were synthesized via a simple one-step precipitation method at room-temperature for the first time. Different surfactants, including Na2EDTA, PVP, SDS, and Na2tar, were introduced to co…
The exploration of nanomaterials as catalysts for hydrogen and oxygen evolution is highly desirable for renewable and clean energy applications. We have obtained highly efficient and stable copper nanoparticles (4–6 nm) by thermal decomposition of aligned copper oxalate nanorods (obtained by a microemulsion method) in…
The mesoporous carbon fibers, of about 400 to 900 nm in diameter, have been synthesized by an electrospinning method with PF resin and PVP as carbon sources and triblock copolymer Pluronic P123 and tetraethyl orthosilicate (TEOS) as mesoporous templates. All materials have large surface areas (1215–2092 m2 g−1), high…
A versatile ionothermal strategy is proposed to synthesize nanostructured nickel compounds as energy storage materials, such as Ni(NH3)6Cl2 crystals, nanosheet-like NiCl2, nanoflower-like (NF) α-Ni(OH)2, and mesoporous NF-NiO. The primal solution is a choline chloride (ChCl)–urea mixture-based ionic liquid with nickel…
A multifunctional core-shell nanocomposite platform consisting of a photoluminescent nanodiamond (ND) core with uniform porous silica coatings is presented. This design intended for drug delivery applications allows simultaneous stable fluorescent imaging with high loading capacity of bioactive molecules. Despite irre…
The rate capability of carbon-based electrochemical capacitors (ECs) is an important issue for applications and the three-dimensional (3D) hierarchically ordered porous carbon (HOPC) can reduce the diffusion length to improve the rate performance by the unique architectural design. In this study, a modified dual-templ…
Narrow size dispersion ZnTi–layered double hydroxide (LDH) nanosheets with lateral dimensions in the range 40–80 nm have been synthesised using a reverse microemulsion method. Electron Spin Resonance (ESR) and X-ray photoelectron spectroscopy (XPS) measurements reveal that Ti3+ sites are generated within these nanosiz…
Swift fabrication of a non-covalently modified reduced graphene oxide electronic sensor has been developed. An unparalleled detection limit is demonstrated for Hg(2+), down to the picomolar range.
Cathodic corrosion has been successfully applied to obtain well-dispersed core–shell tin/tin oxide nanoparticles in room temperature ionic liquids (RTILs) for the first time. RTILs served as a reactant, and to some extent, solvents and electrolytes as well, avoiding the use of nocuous organic solvents.
Reaction of the OOO-coordinating tridentate bis(phenolate) protio-ligand 2,2'-{oxybis(methylene)}bis{4,6-di(1-methyl-1-phenylethyl)phenol} (L(O3)-H2), with 1 equiv. of KN(SiMe3)2 in toluene or THF yielded [K(L(O3)-H)] (1) or [K(L(O3)-H)(THF)] (2), respectively. Single-crystal X-ray diffraction studies of 1 and 2 revea…
Lanthanide-doped core-shell upconversion nanocrystals (UCNCs) have tremendous potential for applications in many fields, especially in bio-imaging and medical therapy. As core-shell UCNCs are mostly synthesized in organic solvents, tedious organic-aqueous phase transfer processes are usually needed for their use in bi…
Mg(BH4)2 exhibits a high hydrogen content of 14.9 wt% and thermodynamic stability in the overall decomposition reaction that corresponds to hydrogen desorption at around room temperature. However, the potential applications in hydrogen storage are restricted by high kinetic barriers. In this study, we show the synthes…
Divalent metal ions were found to trigger the shrinkage of a supramolecular hydrogel based on a peptide dendron, and the shrinkable gel could be further used to control the release of vitamin B1.
The importance of the exposed interface between Au and the support metal oxide has been suggested in the literature. Here we summarize evidence that provide strong support as well as conflicting evidence for this type of active sites and the potential reaction mechanism that takes place. Evidence from three reactions…
Although undoped diamond is insulating, hydrogenated bulk diamond surfaces exhibit surface conductivity under air and are electrochemically active in aqueous solutions. Due to their large surface/volume ratio, similar surface effects may exhibit a dramatic impact on the properties of nanodiamonds. Here we show that pl…