Materials Literature
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Because of their unique heterostructure characteristics and anisotropic surface properties, Janus particles have gained growing interest in a number of novel applications. For the first time we demonstrate a facile, but versatile and general strategy for large-scale building of Janus particles with controlled structur…
Colloidal systems are involved in crystallization processes in many different ways: on one hand, colloids may be used as controlling or structure-directing agents, as nanoreactors and as scaffolds and templates for crystallization. On the other hand, it is very often desirable to obtain colloidal particles in a crysta…
Halide-templated tert-butylethynide Ag14 complexes undergo reversible exchange with copper(I) to afford a series of mixed Ag14-nCun (n = 1-6) species. Up to six silver atoms in the cluster can be replaced with copper(I) to give a core structure featuring a Ag8Cu6 rhombic dodecahedron. These clusters are useful models…
MnO2/polyaniline (PANI) coaxial nanocables were fabricated through an oxidative template route, where MnO2 nanorods were selected as the reactive templates for polymerization of aniline in acidic aqueous solution. It was found that PANI could be coated on the surfaces of MnO2 nanorods, accompanied by dissolution of th…
CrOx, Ce0.5Zr0.5O2 and 10Cr/Ce0.5Zr0.5O2 catalysts were prepared to investigate the separate effect of Cr and Ce0.5Zr0.5O2 for selective catalytic oxidation of NO. It was found that the co-actions of CrOx and Ce0.5Zr0.5O2 exhibited the higher catalytic activity than separate effect of CrOx or Ce0.5Zr0.5O2. The separat…
Several chemical hydrides, such as NaBH4, LiAlH4, AlH3 and B–N–H compounds, containing high hydrogen capacity (>10 wt%) have attracted increasing attention as promising hydrogen storage candidates recently. However, to realize a wide use of these hydrides in the future “hydrogen economy”, a serious challenge that we h…
Abstract– Hypervelocity (2.5–7.8 km s−1) impact experiments into sandstone were carried out to investigate the influence of projectile velocity and mass, target pore space saturation, target‐projectile density contrast, and target layer orientation on crater size and shape. Crater size increases with increasing projec…
It is becoming increasingly clear that the exotic properties displayed by correlated electronic materials such as high- T c superconductivity in cuprates, colossal magnetoresistance (CMR) in manganites, and heavy-fermion compounds are intimately related to the coexistence of competing nearly degenerate states which co…
Introduction to silk and sericulture Silk reeling and silk fabric manufacture Structural aspects of silk Mechanical and thermal properties of silk The dyeing of silk Developments in the processing and applications of silk Spider silks and their applications.
We demonstrate that giant Faraday rotation in graphene in the terahertz range due to the cyclotron resonance is further increased by constructive Fabry-Perot interference in the supporting substrate. Simultaneously, an enhanced total transmission is achieved, making this effect doubly advantageous for graphene-based m…
The present study explores the in situ fabrication of chitosan-silver nanocomposites in view of their increasing applications as antimicrobial packaging, wound dressing and antibacterial materials. Chitosan/Silver nanocomposites were prepared by embedding of silver nanoparticles in Chitosan polymer. Synthesis of nanoc…
Bio-plastics are a form of plastics derived from plant sources such as sweet potatoes, soya bean oil, sugarcane, hemp oil, and corn starch. These polymers are naturally degraded by the action of microorganisms such as bacteria, fungi and algae. Bio-plastics can help alleviate the energy crisis as well as reduce the de…
The adsorption and corrosion-inhibition properties of caffeine as an eco-friendly corrosion inhibitor for mild steel in acid medium were investigated by electrochemical and spectroscopic techniques. Polarization experiments indicated that caffeine behaves as a cathodic-type inhibitor. Impedance data showed that surfac…
Small-molecule hydrogelators have been widely used to engineer supramolecular hydrogels for biomedical applications. Typically, a change of the solubility of small molecules in solvent is used to trigger the gelation process. This requires a switch of pH or solvent by mixing two different types of solutions. However,…
We present for the first time the growth of dense arrays of silicon and silicon carbide nanowires directly on graphene as well as methods of transferring these novel hybrids to arbitrary substrates. Improved electrical contact for SiC nanowire/graphene hybrid is demonstrated in the application of a robust supercapacit…
Normal Raman and tip-enhanced Raman scattering (TERS) spectra were recorded for single-walled carbon nanotube (SWCNT)-polystyrene (PS) nanocomposites to investigate the distribution of SWCNTs in the nanocomposites and local interactions at an interface between SWCNTs and PS. The normal Raman spectra do not show an evi…
A novel concept that employs dual chamber SOFC technology with a porous electrolyte, which allows the controlled distribution of gaseous O2 at the anode side, was successfully designed using an all porous structure. The oxidative reforming of hydrocarbon streams can consequently operate in a similar fashion to single…
A n-UV convertible phosphor Sr3Tb(PO4)3:Mn(2+) with tunable-emitting color has been synthesized by solid state reaction. The GSAS refinement shows that the obtained powder crystallizes as a cubic unit cell with space group I43d, and Mn(2+) ions occupy the Sr(2+) crystallographic sites. Under (7)F6→(5)D3 of Tb(3+) exci…
The development of versatile bioactive surfaces able to emulate in vivo conditions is of enormous importance to the future of cell and tissue therapy. Tuning cell behaviour on two-dimensional surfaces so that the cells perform as if they were in a natural three-dimensional tissue represents a significant challenge, bu…
Three different chemical modification routes of wood cellulose fibers were studied to develop environmentally friendly film-forming materials. Cellulose fibers were modified via the periodate oxidation and were further derivatized using either chlorite oxidation, bisulfite addition or reductive amination with taurine,…