Materials Literature
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We report on the facile preparation of biomass waste-derived microporous carbons and the investigation of their hydrogen storage performance. By adjusting the reaction parameters, different carbon materials with controlled morphology and texture were prepared through the carbonization and activation of the hydrolytic…
Single-walled carbon nanotubes (SWCNTs) functionalized by metals have great potential for applications in hydrogen storage, chemical sensors, and nanodevices. Because the exterior of single-walled silicon carbide (SiC) nanotubes has a higher reactivity than that of SWCNTs, it is highly desirable to investigate the fun…
One of the major concerns for the feasibility of phase-change memories is the reduction of the programming current. To this aim, several efforts have been dedicated both on cell geometry and on material engineering. This paper addresses programming-current minimization by the optimization of the cell geometry and mate…
In this letter, we demonstrate a gate-all-around single-wall carbon nanotube field-effect transistor. This is the first successful experimental implementation of an off-chip gate and gate-dielectric assembly with subsequent deposition on a suitable substrate. The fabrication process and device measurements are discuss…
A realistic model, consisting of six-layer slabs, and density-functional calculations were used to perform a detailed analysis of the structural and electronic properties of N doped TiO 2 (110). All the positions examined for adsorption of atomic N are unstable regarding the formation and further escape of N 2 (g). Th…
In order to disclose the dominant interfacial interaction between amino acids and ordered mesoporous materials, the adsorption behaviors of five amino acids on four mesoporous materials were investigated in aqueous solutions with adjustable amino acid concentration, ion strength, and pH. The selected amino acids were…
Well-oriented thin films of methyl-ammonium trihalogenostannates $\mathrm{C}{\mathrm{H}}_{3}\mathrm{N}{\mathrm{H}}_{3}\mathrm{Sn}{X}_{3}$ compounds $(X=\mathrm{Cl},\mathrm{Br})$ are grown by the single source thermal ablation technique. Optical absorption and structural analysis of $\mathrm{C}{\mathrm{H}}_{3}\mathrm{N…
ADVERTISEMENT RETURN TO ISSUEPREVCommunication to the...Communication to the EditorNEXTHigh Molecular Weight Polymethacrylates by AGET ATRP under High PressurePiotr Kwiatkowski, Janusz Jurczak, Joanna Pietrasik, Wojciech Jakubowski, Laura Mueller, and Krzysztof MatyjaszewskiView Author Information Institute of Organic…
Ordered porous metal nanomaterials have current and future potential applications, for example, as catalysts, as photonic crystals, as sensors, as porous electrodes, as substrates for surface-enhanced Raman scattering (SERS), in separation technology, and in other emerging nanotechnologies. Methods for creating such m…
We have studied the phase behavior of the poly(n-butyl acrylate)-b-poly(acrylic acid) block copolymer in a mixture of two miscible solvents, water and tetrahydrofuran (THF). The techniques used to examine the different polymers, structures and phases formed in mixed solvents were static and dynamic light scattering, s…
La 0.67 Sr 0.33 Mn 1− x Ti x O 3 (0≤ x ≤0.20) polycrystalline materials are prepared by employing lower annealing temperature compared to the temperatures reported for the materials of the same composition. The transport and magnetic properties of these materials are significantly different from those compounds prepar…
Molecular dynamics simulations have been used to examine the effect of the size of a spherical inclusion in generic model polymer nanocomposite systems. Results are presented concerning the effect of the increasing particle size on the thickness of the interphase, i.e., the perturbed zone of polymer surrounding the in…
In this study, the suspension of MoO 3 nanobelts was first prepared in a hydrothermal way from Mo powders and H 2 O 2 solution, which could be transformed into the suspension of H x MoO 3 nanobelts under an acidic condition using N 2 H 4 ·H 2 O as the reducing agent. Three paper-form samples made from MoO 3 and H x Mo…
We report on phonon properties and electronic transitions in $\mathrm{Ca}{\mathrm{Cu}}_{3}{\mathrm{Ti}}_{4}{\mathrm{O}}_{12}$, a material which reveals a colossal dielectric constant at room temperature without any ferroelectric transition. The results of far- and midinfrared measurements are compared to those obtaine…
A clear understanding of the mechanisms responsible for the protein-resistant nature of end-tethered poly(ethylene oxide) (PEO) surfaces remains elusive. A barrier to improved understanding is the fact that many of the factors involved (chain length, chain density, hydration, conformation, and distal chemistry) are in…
High Resolution Image Download MS PowerPoint Slide High-temperature-stable Au@SnO 2 core/shell supported catalyst was prepared by a simple intermetallics-based dry-oxidation approach in which the size of the core can be controlled easily by varying the size of the pre-made Au seeds. The change of their structure was i…
Wettability control has been widely investigated in the last decades for technological applications such as microfluidic devices and self-cleaning surfaces by modifying both the chemical composition and the geometric structure of the surfaces. Inspired by the typical morphology of superhydrophobic leaves (such as lotu…
Mesoporous silica nanoparticles (MSNs) containing a hexagonal array of one-dimensional channels with diameters of 2.4 nm were synthesized using a surfactant-templated, base-catalyzed condensation reaction. After extraction of the template, the highly porous 75 nm nanospheres were coated with a Gd−Si−DTTA complex to gi…
It is essential to determine the biodistribution, clearance, and biocompatibility of magnetic nanoparticles (MNPs) for in vivo biomedical applications to ensure their safe clinical use. We have studied these aspects with our novel iron oxide MNP formulation, which can be used as a magnetic resonance imaging (MRI) agen…
Utilizing a microwave setup, we experimentally verify our recently developed theory of energy squeezing and tunneling [Phys. Rev. Lett. 97, 157403 (2006)10.1103/PhysRevLett.97.157403] through an ultranarrow waveguide channel that mimics zero-permittivity properties. Exploiting the infinite phase velocity supported by…