Materials Literature
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We have carried out a fundamental study of the WGS reaction on model Au/CeO x /TiO 2 (110) and powder Au/CeO x /TiO 2 catalysts paying particular attention to the effect of ceria on the activity of the gold–titania systems. CeO x nanoparticles deposited on TiO 2 (110) act as anchoring sites for gold improving the disp…
We consider homogeneous crystallisation rates in confocal microscopy experiments on colloidal nearly hard spheres at the single particle level. These we compare with Brownian dynamics simulations by carefully modelling the softness in the colloid interactions with a Yukawa potential, which takes account of the electro…
Graphene as an important two-dimensional one-atom-thick nanosheet can be regarded as a solid and also a molecule. In this paper, we focused attention on the coordination ability of doping-induced defects, micro-scale size and atomic thickness of graphene, and anchored oxygen-donor coordination of graphene oxide to fer…
Exchange coupled hard/soft magnetic nanocomposites have long been in the interest of research for improving the energy density of the currently best hard magnetic materials such as Nd2Fe14B (512 kJ/m3) or SmCo5(230 kJ/m3). However, to compete with the energy density of a well textured single phase bulk magnet, the har…
Plasmonic polymers present an interesting concept that builds on the analogy between molecular polymers and linear chains of strongly interacting metal nanoparticles. Ensemble-averaged optical properties of plasmonic polymers are strongly influenced by their structure. In the present work, we formed plasmonic polymers…
Through calculating the band structures of the defect chalcopyrite semiconductor Cu1−xGaSbxTe2 with the proper addition of Sb to CuGaTe2, we have demonstrated that Sb actually mostly occupies the Te rather than Cu lattice sites. Such a dominant occupation increases the density of states (DOS) at the Fermi level and th…
We propose a new type of ‘smart’ nanofiber (NF) with dynamically and reversibly tunable properties for the ‘on–off’ controlled release of the polysaccharide dextran. The fibers are produced by electrospinning copolymers of N-isopropylacrylamide (NIPAAm) and N-hydroxymethylacrylamide (HMAAm). The OH groups of HMAAm are…
Monodisperse poly(acrylic acid)-modified Fe(3)O(4) (PAA@Fe(3)O(4)) hybrid microspheres with dual responses (magnetic field and pH) were successfully fabricated. The PAA polymer was encapsulated into the inner cavity of Fe(3)O(4) hollow spheres by a vacuum-casting route and photo-initiated polymerization. TEM images sh…
Achieving the unachievable: Hard supramolecular materials displaying autonomous self-healing have been considered unachievable because of the mobility required to reconstitute supramolecular interactions after rupture. Now, relatively hard thermoplastic elastomers have been reported that meet these requirements. The p…
Three carbohydrate-based bicyclic diols, 1,4:3,6-dianhydro-D-glucitol (isosorbide, Is), 2,3:4,5-di-O-methylene-galactitol (Galx) and 2,4:3,5-di-O-methylene-D-mannitol (Manx), were made to react in the melt and under the same conditions with dimethyl terephthalate and 1,4-butanediol to produce respectively three series…
Biomolecules capable of fabricating complex nanomaterials with required functions in nature have been exploited to artificially control nanomaterial synthesis in all aspects. This tutorial review provides an overview of recent efforts in biomimetic synthesis and the relevant mechanistic studies on biomolecular specifi…
We report the optical properties of tetraphenylethene (TPE) and other TPE derivatives functionalised with an octyl group (TPE-OCT) and polyethyleneglycol group (TPE-PEG) in the side chain. We compared TPE-OCT and TPE-PEG with TPE in both organic solvents and under aqueous conditions. All materials exhibit aggregation-…
We compute the classical eddy current losses in soft magnetic composite (SMC) materials, taking into account the eddy current paths appearing at the scale of the sample cross-section because of random contacts between the grains. The prediction of this loss contribution is a challenging task, because of the stochastic…
Localized surface plasmon resonances (LSPRs), collective electron oscillations in metal nanoparticles, are being heavily scrutinized for applications in prototype devices and circuits, as well as for chemical and biological sensing. Both the plasmon frequency and linewidth of a LSPR are critical factors for applicatio…
Single-molecule fluorescent microscopy allows semiconducting single-walled carbon nanotubes (SWCNTs) to detect the adsorption and desorption of single adsorbate molecules as a stochastic modulation of emission intensity. In this study, we identify and assign the signature of the complex decomposition and reaction path…
BaCa2MgSi2O8:Eu2+ phosphors have been prepared by a conventional high temperature solid state reaction technique. The emission and excitation spectra as well as the luminescence decays were investigated, showing that Eu2+ ions enter both Ba2+ and Ca2+ sites in the host. The structural refinement reveals that about 70%…
Novel Li-ion hybrid supercapacitors were developed containing composite cathodes of a conducting polymer – either polyaniline (PANI) or polypyrrole (PPy) – with Li(Mn1/3Ni1/3Fe1/3)O2 nanoparticles. Activated carbon (AC) anodes were used in the presence of an organic electrolyte. Using a PANI composite electrode result…
A novel β-diketone ligand, 4,4,5,5,5-pentafluoro-3-hydroxy-1-(phenanthren-3-yl)pent-2-en-1-one (Hpfppd), which contains a polyfluorinated alkyl group, as well as a conjugated phenanthrene unit, has been synthesized and utilized for the construction of two new europium coordination compounds [Eu(pfppd)3(H2O)2] 1 and [E…
Extremely thin absorber solar cells are built in which an Sb2S3 absorber coating is created by atomic layer deposition (ALD). The material is distributed homogeneously along the depth axis and is free of oxide. Under our conditions, an optimal thickness of 10 nm, Sb2S3, yields efficiencies of up to 2.6%.
Liquid crystals are ordered soft materials formed by self-organized molecules and can potentially be used as new functional materials for electron-, ion- or molecular-transport; optical; and bio-active materials. In particular, the columnar liquid crystals are promising candidates used in various optical and electroni…