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Versatile Fabrication of Complex Shaped Metal Oxide Nano-Microstructures and Their Interconnected Networks for Multifunctional Applications

Yogendra Kumar Mishra、Sören Kaps、Arnim Schuchardt 等 9 位作者2014-01-01KONA Powder and Particle Journal

Metal oxide nano-microstructures are applied in photocatalytic surfaces, sensors or biomedical engineering, proving the versatile utilization of nanotechnology. However, more complex or interconnected nano-microstructures are still seldomly met in practical applications, although they are of higher interest, due to en…

ZnO doping and propertiesGas Sensing Nanomaterials and SensorsMagnesium Oxide Properties and Applications

Supercapacitor/biofuel cell hybrids based on wired enzymes on carbon nanotube matrices: autonomous reloading after high power pulses in neutral buffered glucose solutions

Charles Agnès、Michael Holzinger、Alan Le Goff 等 7 位作者2014-01-01Energy & Environmental Science

An original supercapacitor/biofuel cell hybrid system based on compression of enzyme–carbon nanotubes enables high power discharge cycles with autonomous reloading.

Supercapacitor Materials and FabricationElectrochemical sensors and biosensorsConducting polymers and applications

Warm white light generation from a single phase Dy 3+ doped Mg 2 Al 4 Si 5 O 18 phosphor for white UV-LEDs

Zhipeng Ci、Qisheng Sun、Shengchun Qin 等 7 位作者2014-01-01Physical Chemistry Chemical Physics

A series of Mg2-xAl4Si5O18:xDy(3+) (0 ≤x≤ 0.18) samples were synthesized, for the first time, by a solid state method both in a reducing atmosphere and in air. XRD, diffuse reflectance spectra, excitation spectra, emission spectra, decay times and thermal quenching were used to investigate the structure, photoluminesc…

Luminescence Properties of Advanced MaterialsGlass properties and applicationsMicrowave Dielectric Ceramics Synthesis

Ultra-Thin Unidirectional Carpet Cloak and Wavefront Reconstruction With Graded Metasurfaces

Nasim Mohammadi Estakhri、Andrea Alù2014-01-01IEEE Antennas and Wireless Propagation Letters

Using a suitably designed, ultra-thin graded metasurface, we demonstrate the possibility of hiding an arbitrarily shaped/sized object from an impinging plane wave. The metasurface is tailored to provide an abrupt, inhomogeneous discontinuity to the electromagnetic field that compensates for the unwanted scattering cre…

Antenna Design and AnalysisMetamaterials and Metasurfaces ApplicationsAdvanced Antenna and Metasurface Technologies

Carbon Black Particle Exhibits Size Dependent Toxicity in Human Monocytes

Devashri Sahu、G. M. Kannan、R. Vijayaraghavan2014-01-01International Journal of Inflammation

Increased levels of particulate air pollution are associated with increased respiratory and cardiovascular mortality and morbidity. Some epidemiologic and toxicological researches suggest ultrafine particles (<100 nm) to be more harmful per unit mass than larger particles. In the present study, the effect of particle…

Nanoparticles: synthesis and applicationsAir Quality and Health ImpactsMedical and Biological Ozone Research

Photoirradiation wavelength dependence of cycloreversion quantum yields of diarylethenes

Takaki Sumi、Yuta Takagi、Akira Yagi 等 5 位作者2014-01-01Chemical Communications

The cycloreversion quantum yields of compounds 1b and 2b increased upon irradiation with light at shorter wavelengths. The irradiation wavelength dependence is ascribed to the energy barrier on the 2A potential energy surface in the excited electronic state.

Radical Photochemical ReactionsPhotochromic and Fluorescence ChemistryPhotoreceptor and optogenetics research

Linking crystal structure with temperature-sensitive vibrational modes in calcium carbonate minerals

Ben Xu、Kristin M. Poduska2014-01-01Physical Chemistry Chemical Physics

We demonstrate a correlation between how an IR-active vibrational mode responds to temperature changes and how it responds to crystallinity differences. Infrared (IR) spectroscopy was used to track changes in carbonate-related vibrational modes in three different CaCO3 polymorphs (calcite, aragonite, and vaterite) and…

High-pressure geophysics and materialsCrystal Structures and PropertiesCalcium Carbonate Crystallization and Inhibition

CO 2 activation and carbonate intermediates: an operando AP-XPS study of CO 2 electrolysis reactions on solid oxide electrochemical cells

Yi Yu、Baohua Mao、Aaron Geller 等 7 位作者2014-01-01Physical Chemistry Chemical Physics

Through the use of ambient pressure X-ray photoelectron spectroscopy and specially designed ceria-based solid oxide electrochemical cells, carbon dioxide (CO2) electrolysis reactions (CO2 + 2e(-)→ CO + O(2-)) and carbon monoxide (CO) electro-oxidation reactions (CO + O(2-)→ CO2 + 2e(-)) over cerium oxide electrodes ha…

Catalytic Processes in Materials ScienceAdvancements in Solid Oxide Fuel CellsCO2 Reduction Techniques and Catalysts

One-step synthesis of CoNi2S4 nanoparticles for supercapacitor electrodes

Weimin Du、Zhaoqiang Zhu、Yanbin Wang 等 7 位作者2014-01-01RSC Advances

A one-step solvothermal process is developed to synthesize novel CoNi2S4 nanoparticles. When applied as electrode materials of supercapacitors, CoNi2S4 nanoparticles with lower cost of production exhibit better electrochemical performances, i.e.: higher specific capacitance, better rate capability, and higher energy d…

Electrocatalysts for Energy ConversionSupercapacitor Materials and FabricationAdvanced battery technologies research

ZnS grain size effects on near-resonant Raman scattering: optical non-destructive grain size estimation

Andrew Fairbrother、Víctor Izquierdo‐Roca、Xavier Fontané 等 7 位作者2014-01-01CrystEngComm

Near-resonant Raman scattering measurements of zinc sulfide nanoparticles and thin films have been made and correlated to grain and particle size, respectively, using a 325 nm wavelength excitation source. The area ratios between the first, second, and third order peaks of ZnS identified as the T2(LO) mode decrease wi…

Quantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin FilmsCopper-based nanomaterials and applications

[Ag70(PW9O34)2(tBuCC)44(H2O)2]8+: ionothermal synthesis of a silver cluster encapsulating lacunary polyoxometalate ions

Zhan‐Guo Jiang、Kang Shi、Yu‐Mei Lin 等 4 位作者2014-01-01Chemical Communications

A silver alkynyl cluster containing a Ag70 shell and two lacunary [PW9O34](9-) templating ions was synthesized by an ionothermal approach. Fast core-shell electronic communication between silver(i) centers and polyoxometalates was verified via cyclic voltammetry studies in [BMIm]BF4.

Polyoxometalates: Synthesis and ApplicationsNanocluster Synthesis and ApplicationsAdvanced Nanomaterials in Catalysis

Tunable band gaps in silicene–MoS 2 heterobilayers

Nan Gao、J. C. Li、Qing Jiang2014-01-01Physical Chemistry Chemical Physics

The geometric and electronic properties of silicene paired with a MoS2 substrate are studied systematically by using density functional theory with van der Waals corrections. It is found that the nearly linear band dispersions can be preserved in the heterobilayers due to the weak interface interactions. Meanwhile, th…

Graphene research and applications2D Materials and ApplicationsPorphyrin and Phthalocyanine Chemistry

Dynamics of various polymer–graphene interfacial systems through atomistic molecular dynamics simulations

Anastassia N. Rissanou、Vagelis Harmandaris2014-01-01Soft Matter

The current work refers to a simulation study on hybrid polymer-graphene interfacial systems. We explore the effect of graphene on the mobility of polymers, by studying three well known and widely used polymers, polyethylene (PE), polystyrene (PS) and poly(methyl-methacrylate) (PMMA). Qualitative and quantitative diff…

Graphene research and applicationsPolymer crystallization and propertiesMaterial Dynamics and Properties

Antibacterial Activity of Synthesized Silver Nanoparticles from Tinospora cordifolia against Multi Drug Resistant Strains of Pseudomonas aeruginosa Isolated from Burn Patients

Khushboo Singh2014-01-01Journal of Nanomedicine & Nanotechnology

In the present study, antibacterial activity of silver nanoparticles synthesized from stem of Tinospora cordifolia were analysed against multidrug-resistant strains of Pseudomonas aeruginosa isolated from burn patients. As Pseudomonas aeruginosa is a scourge of hospital burn units and its emergence as multidrug-resist…

Nanoparticles: synthesis and applicationsPhytochemicals and Medicinal PlantsMedicinal Plants and Neuroprotection

Polarization enhancement of microwave absorption by increasing aspect ratio of ellipsoidal nanorattles with Fe 3 O 4 cores and hierarchical CuSiO 3 shells

Junjie Xu、Ji‐Wei Liu、Renchao Che 等 7 位作者2014-01-01Nanoscale

The shape anisotropy of the nanostructured nanorattles is one of the key factors that affect their microwave absorption performance. In the present study, the microwave absorption performance of ellipsoidal Fe3O4@CuSiO3 nanorattles with different aspect ratios was investigated. Results demonstrated that the ellipsoida…

Metamaterials and Metasurfaces ApplicationsElectromagnetic wave absorption materialsAdvanced Antenna and Metasurface Technologies