Materials Literature
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Polarity is known to affect the growth and properties of ZnO single crystals and epitaxial films, but its effects are mostly unknown in ZnO nanorods. To leave polarity as the only varying parameter, ZnO nanorods are grown by chemical bath deposition under identical conditions and during the same run on O- and Zn-polar…
Cyclic voltammetry measurements are carried out in neutral phosphate-buffered electrolyte using n -type Ga-polar GaN thin-film photoelectrodes with and without cobalt phosphate (Co-Pi) modification. Without Co-Pi, the variation of the photocurrent with the bias potential exhibits a two-step behavior and under chopped…
Single-walled carbon nanotubes (SWCNTs) show great potential as an active material in electronic and photonic devices, but their applicability is currently limited by shortcomings in existing deposition methods. SWCNTs can be dispersed from liquid solutions; however, their poor solubility requires the use of surfactan…
The in-plane thermal conductivity of silicon phononic membranes is investigated by micro time domain thermoreflectance and Monte Carlo simulations. Strong reduction of thermal conductivity is observed mainly due to phonon boundary scattering for both aligned and staggered lattices of holes. The measured and calculated…
Abstract A neutral N‐heterocyclic phosphenium complex of manganese was synthesised by a metathesis approach and characterised by IR, NMR, and XRD studies. The short P−Mn distance suggests a substantial metal–ligand double bond character. Reaction with a hydride produced an anionic phosphine complex, which was also cha…
Forthcoming applications in electronics and optoelectronics make phosphorene a subject of vigorous research efforts. Solvent-assisted exfoliation of phosphorene promises affordable delivery in industrial quantities for future applications. We demonstrate, using equilibrium, steered and umbrella sampling molecular dyna…
Expanded polytetrafluoroethylene (ePTFE), also known as Gore-Tex, is widely used as an implantable biomaterial in biomedical applications because of its favorable mechanical properties and biochemical inertness. However, infection and inflammation are two major complications with ePTFE implantations, because pathogeni…
Abstract Dendrimers have emerged as a powerful class of nanomaterials in the nanomedicine field due to their unique structural features: globular, well‐defined, highly branched and controllable structure, nanosize‐scale, low polydispersity, and the presence of several terminal groups that can be functionalized with di…
The exceptional properties of graphene make it a promising candidate in the development of next-generation electronic, optoelectronic, photonic and photovoltaic devices. A holy grail in graphene research is the synthesis of large-sized single-crystal graphene, in which the absence of grain boundaries guarantees its ex…
The influence of halide ion on the peroxidase activity of protein-modified gold nanoparticles (AuNPs) has been explored, based on the Au–X interaction directed binding of halide ion to AuNPs. Due to different Au–X interactions, halide has been demonstrated to display different switching behaviors to the catalytic acti…
The reaction of Co(CH 3 COO) 2 ·4H 2 O with the Schiff base ligand LH 4 derived from o -vanillin and tris(hydroxymethyl)aminomethane produces the dinuclear mixed-valence complex [Co II Co III (LH 2 ) 2 (CH 3 COO)(H 2 O)](H 2 O) 3 ( 1 ), which has been investigated using IR spectroscopy, X-ray crystallography, temperat…
Ceres Power is continuing to make excellent progress in the development of its low-temperature metal supported SOFC design (the 'Steel Cell') based predominantly around the use of ceria. Major technological highlights over the last year include the completion of verification and validation testing on the latest (v4.0)…
The synthesis, crystal structure, magnetic, calorimetric, and Mössbauer studies of a series of new Hofmann-type spin crossover (SCO) metal–organic frameworks (MOFs) is reported. The new SCO-MOFs arise from self-assembly of Fe II, bis(4-pyridyl)butadiyne (bpb), and [Ag(CN) 2 ] − or [M II (CN) 4 ] 2– (M II = Ni, Pd). In…
Lithium-ion capacitors (LICs) and lithium-ion batteries (LIBs) are important energy storage devices. As a material with good mechanical, thermal, and chemical properties, low-carbon silicon oxycarbide (LC-SiOC), a kind of silicone oil-derived SiOC, is of interest as an anode material, and we have examined the electroc…
Electrospun nanofibrous membranes of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) seems not to be ideal for biomedical applications because of their hydrophobicity, and high crystallinity, as well as weak mechanical properties. It is found that hydrophilic drug such as tetracycline hydrochloride (TH) generally…
ABSTRACT Two porous porphyrin‐based covalent triazine frameworks (PCTFs), in which porphyrin is incorporated as building block, have been synthesized by the Friedel–Crafts reaction. The copolymer PCTFs show large Brunauer–Emmett–Teller specific surface area of up to 1089 m 2 g −1 , high CO 2 uptake capacity reaching 1…
Graphene, a very intriguing two-dimensional Dirac electronic system with high carrier mobility, is promising for spintronics. However, the long-range ferromagnetic order is always absent in pristine graphene. Here we report the fabrication and transport properties of graphene-$\mathrm{BiFe}{\mathrm{O}}_{3}$ heterostru…
High Resolution Image Download MS PowerPoint Slide Rh/SiO 2 catalysts promoted with Fe and Mn are selective for synthesis gas conversion to oxygenates and light hydrocarbons at 523 K and 580 psi. Selective anchoring of Fe and Mn species on Rh nanoparticles was achieved by controlled surface reactions and was evidenced…
In the recent years, nanotechnology has attained much attention in the every field of science. The synthesis, characterisation and applications of metallic nanoparticles (MNPs) have become an important branch of nanotechnology. In the current study, MNPs were synthesised through polyols process and applied in vitro to…
Significance Understanding the carrier dynamics in ultrasmall (<2-nm) gold nanoclusters is fundamentally important for their applications in solar energy storage and conversion. This work tackles how the electrons of gold nanoclusters flow after photoexcitation. The electron localization/delocalization is commonly…