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A TEM Study of Oxide Layers Formed during Decarburization Annealing of Electrical Steel

Sehoon Jung、Min Serk Kwon、Jong‐Ho Park 等 5 位作者2011-01-01ISIJ International

It is very important to know the morphology and chemical properties of subscales of oxide layers on surface for controlling and understanding high temperature oxidation in electrical steel. In present work, the oxide layers were investigated by various methods of transmission electron microscopy (TEM) such as scanning…

Corrosion Behavior and InhibitionMetallurgical Processes and ThermodynamicsMagnetic Properties and Applications

Some Observations on Carbon Nanotubes Susceptibility to Cell Phagocytosis

Aneta Fraczek–Szczypta、Elżbieta Menaszek、S. Błażewicz2011-01-01Journal of Nanomaterials

The aim of this study was to assess the influence of different types of carbon nanotubes (CNTs) on cell phagocytosis. Three kinds of carbon nanotubes: single-walled carbon nanohorns (SWCNHs), multiwalled carbon nanotubes (MWCNTs), and ultra-long single-walled carbon nanotubes (ULSWCNTs) before and after additional che…

Nanoparticles: synthesis and applicationsGraphene and Nanomaterials ApplicationsNanotechnology research and applications

Methoxy-derivatization of alkyl chains increases the in vivo efficacy of cationic Mn porphyrins. Synthesis, characterization, SOD-like activity, and SOD-deficient E. coli study of meta Mn(iii) N-methoxyalkylpyridylporphyrins

Artak Tovmasyan、Zrinka Rajić、Ivan Spasojević 等 10 位作者2011-01-01Dalton Transactions

Cationic Mn(III) N-alkylpyridylporphyrins (MnPs) are potent SOD mimics and peroxynitrite scavengers and diminish oxidative stress in a variety of animal models of central nervous system (CNS) injuries, cancer, radiation, diabetes, etc. Recently, properties other than antioxidant potency, such as lipophilicity, size, s…

Porphyrin and Phthalocyanine ChemistryHeme Oxygenase-1 and Carbon MonoxideVitamin C and Antioxidants Research

Characterization and prediction of some engineering properties of polymer - Clay/Silica hybrid nanocomposites through ANN and regression models

D. Lingaraju、K. Ramji、N.B.R. Mohan Rao 等 4 位作者2011-01-01Procedia Engineering

The search from time immemorial for stronger, lighter and more durable materials used in construction and tools continues to this day. This urge to discover, invent and synthesize new materials has resulted in innumerable kinds of alloys, plastics and composites owing to the very exacting demands from different indust…

Polymer Nanocomposites and PropertiesTribology and Wear AnalysisPolymer Nanocomposite Synthesis and Irradiation

Pyrolysis Modelling of PVC Cable Materials

Anna Matala、Simo Hostikka2011-01-01Fire Safety Science

One of the most commonly used plastics in electrical cables is flexible PVC, which includes 30-40 wt. % combustible plasticizers. In this work, the effects of the modelling decisions and parameter estimation methods on the pyrolysis modelling of two PVC cables were studied. The kinetic and thermal parameters were esti…

Polymer crystallization and propertiesRecycling and Waste Management TechniquesPolymer Science and PVC

Epitaxial and Polycrystalline Gadolinia-Doped Ceria Cathode Interlayers for Low Temperature Solid Oxide Fuel Cells

Young Beom Kim、Joon Hyung Shim、Turgut M. Gür 等 4 位作者2011-01-01Journal of The Electrochemical Society

This paper presents the catalytic role of the gadolinia-doped ceria (GDC) and its surface grain boundaries in enhancing the oxygen incorporation kinetics of low-temperature solid oxide fuel cells (LT-SOFC). Epitaxial and polycrystalline GDC thin films were grown by pulsed laser deposition (PLD) on the cathode side of…

Electrocatalysts for Energy ConversionAdvancements in Solid Oxide Fuel CellsElectronic and Structural Properties of Oxides

Excited states and optical absorption of small semiconducting clusters: Dopants, defects and charging

Sean A. Fischer、Christine M. Isborn、Oleg V. Prezhdo2011-01-01Chemical Science

Spatially confined semiconductors form an exciting type of material with potential for numerous applications, many of which rely on the material's optical properties and excitation dynamics. For successful realization of the applications a detailed analysis of excitations in these materials is needed, extending beyond…

Quantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin FilmsMolecular Junctions and Nanostructures

Phosphorescent self-assembled PtII tetranuclear metallocycles

Sébastien Goeb、Valentina Prusakova、Xianghuai Wang 等 6 位作者2011-01-01Chemical Communications

A series of rigid Pt(II) diimine diacetylide complexes and their corresponding metallocyclic derivatives were synthesized through coordination-driven self-assembly. The photophysical properties of these complexes have been studied in detail, revealing exceptionally high RT phosphorescence quantum yields and lifetimes…

Molecular Sensors and Ion DetectionSupramolecular Chemistry and ComplexesLuminescence and Fluorescent Materials

Pulsed Laser Deposition of La0.6Sr0.4CoO3−δ-Ce0.9Gd0.1O2−δ Nano-Composite and Its Application to Gradient-Structured Thin-film Cathode of SOFC

Doo-Hwan Myung、Jaeyeon Hwang、Jongill Hong 等 7 位作者2011-01-01Journal of The Electrochemical Society

Overcoming the structural instability of a single-phase thin-film-processed cathode by replacing it with a cathode-electrolyte composite thin-film cathode is presented. The effect of the deposition materials change from a single-phase lanthanum strontium cobaltite (LSC) to a LSC-gadolinia-doped ceria (GDC) composite a…

Catalytic Processes in Materials ScienceAdvancements in Solid Oxide Fuel CellsElectronic and Structural Properties of Oxides

Synthesis and evaluation of gold nanoparticle-modified polyelectrolyte capsules under microwave irradiation for remotely controlled release for cargo

Loretta L. del Mercato、Edgar González、Azhar Z. Abbasi 等 5 位作者2011-01-01Journal of Materials Chemistry

The Layer-by-Layer fabrication of polyelectrolyte capsules with and without Au nanoparticles embedded into their walls is reported. We have studied the behaviour of these capsules under microwave irradiation. Their properties have been investigated by transmission electron microscopy and dynamic light scattering measu…

Polymer Surface Interaction StudiesBlock Copolymer Self-AssemblyDendrimers and Hyperbranched Polymers

Enantiopure sandwich-type nonanuclear LnIII3MnIII6 clusters

Yong Zheng、Xiang‐Jian Kong、La‐Sheng Long 等 5 位作者2011-01-01Dalton Transactions

Three enantiopure isostructural sandwich-type clusters, Ln(III)(3)Mn(III)(6) (Ln = Dy (1), Tb (2) and Gd (3)) have been synthesized through reactions of a chiral Schiff-base ligand ((S,E)-4-(2-hydroxybenzylideneamino)-2-hydroxybutanoic acid, H(3)L) with manganese and lanthanide ions, showing intramolecular antiferroma…

Organometallic Complex Synthesis and CatalysisMagnetism in coordination complexesLanthanide and Transition Metal Complexes

Palladium crystals of various morphologies for SERS enhancement

Limiao Chen、You‐Nian Liu2011-01-01CrystEngComm

Palladium (Pd) nanostructures with urchin-like, hemispherical, flower-like, and plate-like morphologies were controllably deposited on silicon substrates in aqueous hydrogen fluoride (HF) solution at room temperature. The morphology of the Pd nanostructures changed from urchin-like to hemispherical and flowerlike in t…

Gold and Silver Nanoparticles Synthesis and ApplicationsQuantum Dots Synthesis And PropertiesNanocluster Synthesis and Applications

Surface modification of poly(ethylene-co-acrylic acid) with amino-functionalized silica nanoparticles

Roberto Scaffaro、Luigi Botta、Giada Lo Re 等 6 位作者2011-01-01Journal of Materials Chemistry

In this work we studied the possibility to achieve a hybrid-surface through the modification, via a facile wet chemical process, of the surface of films of poly(ethylene-co-acrylic acid) (EAA) with amino-modified silica nanoparticles. Films of EAA were preliminarily activated by the introduction of –COCl groups on the…

Surface Modification and SuperhydrophobicityAdvanced Polymer Synthesis and CharacterizationPolymer Surface Interaction Studies

Construction and isomeric transformation of polyoxometalates directed by 1,ω-bis(pyridinium)alkane templates

Yun‐Yin Niu、Lingfang Wang、Xiao-Rui Lv 等 10 位作者2011-01-01CrystEngComm

Ten novel inorganic–organic hybrid polyoxometalates, namely, [1,3-bis(pyridinium) propane]2[α-Mo8O26] (1), [1,4-bis(pyridinium)butane]2[1D-Mo8O26] (2), [1,5-bis(pyridinium)pentane]2[θ-Mo8O26] (3), [1,6-bis(pyridinium)hexane]2[1D-Mo8O26] (4), [1,7-bis(pyridinium)heptane]2[β-Mo8O26] (5), [1,8-bis(pyridinium)octane]2[θ-M…

Metal-Organic Frameworks: Synthesis and ApplicationsPolyoxometalates: Synthesis and ApplicationsCarbon dioxide utilization in catalysis

Gold nanoparticles for highly sensitive and selective copper ions sensing—old materials with new tricks

Yi-Min Fang、Jing Song、Jin-Shui Chen 等 7 位作者2011-01-01Journal of Materials Chemistry

We report a new application of gold nanoparticles for visual detection of copper ions with high sensitivity and selectivity based on the colorimetric difference due to the strong and specific inhibition of Cu(NH3)62+ to the corrosion of gold nanoparticles at low concentration.

Gold and Silver Nanoparticles Synthesis and ApplicationsAdvanced biosensing and bioanalysis techniquesNanocluster Synthesis and Applications

Size-control synthesis of structure deficient truncated octahedral Fe3−δO4 nanoparticles: high magnetization magnetites as effective hepatic contrast agents

Chih-Chia Huang、Kuei-Yi Chuang、Chen-Pin Chou 等 10 位作者2011-01-01Journal of Materials Chemistry

This study reports the size-controlled synthesis of truncated octahedral Fe3−δO4 nanoparticles varying from 5 to 22 nm in edge length. Size-dependent XRD spectra show that the iron oxide gradually shifted from magnetite toward maghemite as the size decreased. The nonstoichiometric Fe3−δO4 was expressed the resulting i…

Nanoparticle-Based Drug DeliveryIron Metabolism and DisordersIron oxide chemistry and applications

Surface integrity of magnesium-calcium implants processed by synergistic dry cutting-finish burnishing

M. Salahshoor、Y. B. Guo2011-01-01Procedia Engineering

Biodegradable magnesium-calcium (MgCa) alloy is a very attractive orthopedic biomaterial compared to permanent metallic alloys. However, the critical issue is that MgCa alloy corrodes too fast in the human organism. It is expected that surface integrity of an MgCa implant has significant impact on the corrosion perfor…

Metal and Thin Film MechanicsMagnesium Alloys: Properties and ApplicationsSurface Treatment and Residual Stress

Argentophilic hydrogels: elucidating the structure of neutral versus acidic systems

Pablo Casuso、Pedro M. Carrasco、Iraida Loinaz 等 6 位作者2011-01-01Soft Matter

In this work we have studied the structure of silver(I) thiolate oligomers that lead to the formation of argentophilic hydrogels. The results showed two different and clearly distinguishable systems, depending on the neutral or acidic character of the thiol. Neutral systems gave opaque hydrogels, showed a fibrilar mic…

Supramolecular Self-Assembly in MaterialsDendrimers and Hyperbranched PolymersNanocluster Synthesis and Applications

Improved light olefin yield from methyl bromide coupling over modified SAPO-34 molecular sieves

Aihua Zhang、Shouli Sun、Zachary J. A. Komon 等 9 位作者2011-01-01Physical Chemistry Chemical Physics

As an alternative to the partial oxidation of methane to synthesis gas followed by methanol synthesis and the subsequent generation of olefins, we have studied the production of light olefins (ethylene and propylene) from the reaction of methyl bromide over various modified microporous silico-aluminophosphate molecula…

Catalytic Processes in Materials ScienceZeolite Catalysis and SynthesisCatalysis and Oxidation Reactions

Novel synthesis of bifunctional catalysts with different microenvironments

Manickam Sasidharan、Satoru Fujita、Masataka Ohashi 等 6 位作者2011-01-01Chemical Communications

Acid-base bifunctional activity governed by -NH(2) group's microenvironment is evident from two different catalysts scrutinized by interchanging the location of -SO(3)H/NH(2) groups on periodic mesoporous ethylenesilica. The hydrophobic local environment plays a significant role in one-pot deacetalization/nitroaldol c…

Catalytic Processes in Materials ScienceMesoporous Materials and CatalysisNanomaterials for catalytic reactions