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BN Domains Included into Carbon Nanotubes: Role of Interface

V. V. Ivanovskaya、Alberto Zobelli、P. R. Briddon 等 4 位作者2009-01-01OpenAlex

We present a density functional theory study on the shape and arrangement of small BN domains embedded into single-walled carbon nanotubes. We show a strong tendency for BN hexagon formation at the simultaneous inclusion of B and N atoms within the walls of carbon nanotubes. The work emphasizes the importance of a cor…

Carbon Nanotubes in CompositesGraphene research and applicationsBoron and Carbon Nanomaterials Research

Thermal properties of low density polyethylene-filled kenaf cellulose composites.

Behjat Tajeddin、Russly Abdul Rahman、Luqman Chuah Abdullah 等 5 位作者2009-01-01Universiti Putra Malaysia Institutional Repository (Universiti Putra Malaysia)

The main objective of this paper is to investigate the thermal properties of the kenaf cellulose (0 - 50 %wt) and the low-density polyethylene (LDPE) composites. In addition, the effect of two different weights of compatibilizing agent, polyethylene glycol (PEG),was examined. Each sample of biocomposites was subjected…

Nanocomposite Films for Food PackagingNatural Fiber Reinforced CompositesAdvanced Cellulose Research Studies

One-pot aqueous synthesis of high quality near infrared emitting Cd1−xHgxTe nanocrystals

Vladimir Lesnyak、Andrey A. Lutich、Nikolai Gaponik 等 7 位作者2009-01-01Journal of Materials Chemistry

An efficient one-pot aqueous synthesis of alloyed Cd1−xHgxTe nanocrystals (NCs) is realized and the influence of the experimental conditions and of the initial composition of the NCs on their optical properties is discussed. This approach obtains stable NCs with an emission tunable in the red and the near infrared (NI…

Quantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin FilmsNanocluster Synthesis and Applications

Polymorphism and its effects on the magnetic behaviour of the [Fe(sal2-trien)][Ni(dmit)2] spin-crossover complex

C. Faulmann、Petra Ágota Szilágyi、Kane Jacob 等 5 位作者2009-01-01New Journal of Chemistry

The syntheses, structural characterisation, and magnetic and spectroscopic properties of three new polymorphs of the spin-crossover complex [Fe(sal2-trien)][Ni(dmit)2] are reported. The results are discussed as a function of their intra- and intermolecular arrangement. Correlation of their crystal structures and magne…

Magnetism in coordination complexesLanthanide and Transition Metal ComplexesMetal-Catalyzed Oxygenation Mechanisms

Charge injection/extraction at a metal-dielectric interface: Experimental validation

Eugen R. Neagu、C.J. Dias2009-01-01IEEE Electrical Insulation Magazine

Electron injection from a silver cathode into a polyethylene terephthalate film, and electron extraction at the anode, have been experimentally demonstrated. There is no experimental evidence of a threshold electric field for injection or extraction.

High voltage insulation and dielectric phenomenaPower Transformer Diagnostics and InsulationElectrostatic Discharge in Electronics

SURFACE WAVE MODES IN CHIRAL NEGATIVE REFRACTION GROUNDED SLAB WAVEGUIDES

Jianfeng Dong2009-01-01Electromagnetic waves

Abstract—The surface wave modes in the chiral negative refraction grounded slab waveguides in which the slab or cladding consists of chiral negative refraction metamaterial are investigated. The dispersion relations, electromagnetic fields, energy flow distribution and the total power of surface wave modes are present…

Metamaterials and Metasurfaces ApplicationsPlasmonic and Surface Plasmon ResearchAdvanced Antenna and Metasurface Technologies

Template-assisted electrodeposition of SixGe1−x nanowires with varying length and composition from two different ionic liquids

Rihab Al‐Salman、Frank Endres2009-01-01Journal of Materials Chemistry

We have recently reported that “luminescent” SixGe1−x can be electrodeposited from 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)amide ([Py1,4]Tf2N) at room temperature. Interestingly, 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)amide ([EMIm]Tf2N) ionic liquid delivers a germanium-rich SixGe1−x…

Advancements in Battery MaterialsSupercapacitor Materials and FabricationSemiconductor materials and devices

Adsorption and Inhibitive Properties of Clarithromycin for the Corrosion of Zn in 0.01 to 0.05 M H2SO4

Emeka Chima Ogoko、S. A. Odoemelam、Benedict I. Ita 等 4 位作者2009-01-01Portugaliae electrochimica acta

The corrosion of zinc in 0.01 to 0.04 M H 2 SO 4 was studied using gravimetric and gasometric methods of monitoring corrosion. The results obtained indicate that clarithromycin is a good adsorption inhibitor for the corrosion of zinc in H 2 SO 4 . The inhibition efficiency of clarithromycin increases with increasing c…

Corrosion Behavior and InhibitionElectrochemical Analysis and ApplicationsMagnesium Oxide Properties and Applications

Formulation and evaluation of sustained release microspheres of rosin containing aceclofenac

Lakshmana Prabu S、Shirwaikar Aa、Annie Shirwaikar 等 4 位作者2009-01-01OpenAlex

Aceclofenac was microencapsulated using rosin by o/w emulsion solvent evaporation technique. The effect of three formulation variable s including the drug:polymer ratio, emulsifier (polyvinyl alcohol) concentration and or ganic solvent (dichloromethane) volume were examined. The prepared batches were characterized for…

Nanoparticle-Based Drug DeliveryAdvanced Drug Delivery SystemsPlant-based Medicinal Research

Preferential CO oxidation in a H2-rich stream promoted by ReOx species attached to Pt metal particles

Yōichi Ishida、Tatsuya Ebashi、Shin‐ichi Ito 等 6 位作者2009-01-01Chemical Communications

Clusters of ReO(x) are formed and attached to Pt metal particles during H(2) reduction treatment on Pt-ReO(x)/SiO(2), and the synergy between Pt metal surface and neighboring ReO(x) clusters gives high catalytic performance in the preferential CO oxidation in the presence of H(2)O and CO(2) as more realistic reaction…

Electrocatalysts for Energy ConversionCatalytic Processes in Materials ScienceCatalysis and Oxidation Reactions

Cluster formation of Janus polymer microgels

Melanie Bradley、Joanne Rowe2009-01-01Soft Matter

Spherical particles whose surfaces are divided into two distinct chemical regions are termed Janus particles. The anisotropic architecture of Janus particles allows their directed assembly into multiple-particle structures. Here, a heteroaggregation technique between positively charged poly(2-vinylpyridine) microgel p…

Advanced Polymer Synthesis and CharacterizationSurfactants and Colloidal SystemsPickering emulsions and particle stabilization

Inhibition of photobleaching and blue shift in quantum dots

Huaping Chen、Hongwei Gai、Edward S. Yeung2009-01-01Chemical Communications

Photobleaching and spectral diffusion (blue shift) of quantum dots at the solid/liquid interface are suppressed by adding mercaptoethylamine.

Gold and Silver Nanoparticles Synthesis and ApplicationsQuantum Dots Synthesis And PropertiesMolecular Junctions and Nanostructures

Amphibious polymer-functionalized CdTe quantum dots: Synthesis, thermo-responsive self-assembly, and photoluminescent properties

Li Zhou、Chao Gao、Weijian Xu2009-01-01Journal of Materials Chemistry

A straightforward strategy is presented to functionalize aqueous-phase synthesized CdTe quantum dots (QDs) with thermo-sensitive poly(2-(dimethylamino)ethyl methacrylate) (PDMAEMA) via direct surface-initiated oxyanionic vinyl polymerization. The polymer grafting quantity can be facilely controlled in a wide range up…

Advanced biosensing and bioanalysis techniquesQuantum Dots Synthesis And PropertiesPolymer Surface Interaction Studies

Universal behaviour in the mechanical properties of weakly aggregated colloidal particles

Stephen Kamp、Maria Kilfoil2009-01-01Soft Matter

We study the evolution of the elastic shear modulus of weakly aggregated colloidal particles during the onset of a delayed collapse under gravity. The early lifetime is characterised by an elastic shear modulus that increases logarithmically in time, following which the gels experience a catastrophic failure and the e…

Material Dynamics and PropertiesPickering emulsions and particle stabilizationBiocrusts and Microbial Ecology

Fractioning HiPco and CoMoCAT SWCNTs via density gradient ultracentrifugation by the aid of a novel perylene bisimide derivative surfactant

Claudia Backes、Frank Hauke、Cordula D. Schmidt 等 4 位作者2009-01-01Chemical Communications

HiPco and CoMoCAT single-walled carbon nanotubes (SWCNT) were fractionated with the aid of a novel perylene bisimide surfactant by combined co-surfactant and replacement density gradient ultracentrifugation (DGU).

Carbon Nanotubes in CompositesGraphene research and applicationsNanopore and Nanochannel Transport Studies

Mechanical and wear properties of oil palm and glass fibres reinforced polyester composites

B.F. Yousif、N.S.M. El Tayeb2009-01-01International Journal of Precision Technology

In the current study, mechanical and tribological characteristics of neat polyester and its composites were evaluated. Polyester composites were based on either synthetic or natural fibres, i.e. chopped strand mat glass fibres reinforced polyester (CGRP) and oil palm fibres reinforced polyester (OPRP) composites. Abra…

Natural Fiber Reinforced CompositesTribology and Wear AnalysisMechanical Engineering and Vibrations Research

Ag-Perovskite Composite Materials for SOFC Cathode–Interconnect Contact

L. T. Wilkinson、J.H. Zhu2009-01-01Journal of The Electrochemical Society

Silver-perovskite composites with the perovskite being either (LSCF) or (LSM) were evaluated as the contact material between the ferritic interconnect alloy Crofer 22 APU and the LSM cathode. The area-specific resistances (ASRs) of the test specimens were highly dependent on the volume percentage and the type of the p…

Advancements in Solid Oxide Fuel CellsFuel Cells and Related MaterialsElectronic and Structural Properties of Oxides

Selection of Optimized Materials for CBRAM Based on HT-XRD and Electrical Test Results

R. Bruchhaus、Matthias Honal、R. Symanczyk 等 4 位作者2009-01-01Journal of The Electrochemical Society

Among emerging memory technologies that rely on the bistable change of a resistor, the conductive bridging random access memory (CBRAM) is of particular interest due to its excellent scaling potential into the sub-20 nm range and low power operation. This technology utilizes electrochemical redox reactions to form nan…

Advanced Memory and Neural ComputingChalcogenide Semiconductor Thin FilmsPhase-change materials and chalcogenides

Boron fullerenes B32+8k with four-membered rings and B32 solid phases: geometrical structures and electronic properties

Xian‐Lei Sheng、Qing‐Bo Yan、Qing‐Rong Zheng 等 4 位作者2009-01-01Physical Chemistry Chemical Physics

Based on ab initio calculations, we have studied the geometrical, electronic properties and chemical bonding of boron fullerenes B(32+8k) (0 < or = k < or = 7) with four-membered rings and B(32) solid phases. The relative energies and the energy gaps between the highest occupied molecular orbital (HOMO) and the lowest…

Graphene research and applicationsFullerene Chemistry and ApplicationsBoron and Carbon Nanomaterials Research

Statistics of High Purity Nickel Microstructure From High Energy X-ray Diffraction Microscopy

Christopher M. Hefferan、Shiu Fai Li、Jonathan Lind 等 7 位作者2009-01-01OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information)

We have measured and reconstructed via forward modeling a small volume of microstructure of high purity, well annealed nickel using high energy x-ray diffraction microscopy (HEDM). Statistical distributions characterizing grain orientations, intra-granular misorientations, and nearest neighbor grain misorientations ar…

Microstructure and mechanical propertiesMicrostructure and Mechanical Properties of SteelsAdvanced Materials Characterization Techniques