Ivan V. Korendovych、Richard J. Staples、William M. Reiff 等 4 位作者2004-05-29Inorganic Chemistry
A new, stable iron(III) complex with a pentadentate amide-containing macrocyclic ligand was prepared and fully characterized. The complex adopted a pentagonal-bipyramidal geometry, where an equatorial plane is occupied by the pyridine nitrogen, two deprotonated amide nitrogens, and two secondary amines from the macroc…
Magnetism in coordination complexesLanthanide and Transition Metal ComplexesMetal-Catalyzed Oxygenation Mechanisms
Takako Nakamura、Masahiro Suzuki、Masatou Ishihara 等 6 位作者2004-05-29Langmuir
Photolysis of perfluoroazooctane with diamond films led the chemical modification of the surface to introduce perfluorooctyl functional groups, confirmed by means of Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, and time-of-flight secondary ion mass spectrometry m…
Metal and Thin Film MechanicsDiamond and Carbon-based Materials ResearchAdhesion, Friction, and Surface Interactions
Peter R. Lang2004-05-29Journal of Physics Condensed Matter
The symmetry break of the particle interaction field at surfaces causes a variety of interfacial effects including the variation of the relative stability of different phases of a given compound. In many materials surface melting is observed, i.e. a surface near a portion of the system is in a less ordered state than…
Material Dynamics and PropertiesSurfactants and Colloidal SystemsPickering emulsions and particle stabilization
Thomas Q. Chastek、Timothy P. Lodge2004-05-29Macromolecules
The ordering kinetics of the cylinder phase were characterized using polarizing optical microscopy (POM). Measurements were made on a poly(styrene- b -isoprene) diblock copolymer with block lengths of 15 and 13 kg/mol, respectively, in solution with dibutyl phthalate at a polymer volume fraction of 0.50. Thermal quenc…
Polymer crystallization and propertiesBlock Copolymer Self-AssemblyMachine Learning in Materials Science
Liang Zhao、Zhiqiang Xu、H. Grove 等 13 位作者2004-05-29Inorganic Chemistry
A series of [3 x 3] Mn(II)(9), antiferromagnetically coupled, alkoxide-bridged, square grid complexes, derived from a group of "tritopic" dihydrazide ligands, is described. The outer ring of eight Mn(II) centers in the grids is isolated magnetically from the central Mn(II) ion, leading to an S = 0 ground state for the…
Metal-Organic Frameworks: Synthesis and ApplicationsMagnetism in coordination complexesLanthanide and Transition Metal Complexes
Debashish Das、C. M. Srivastava、D. Bahadur 等 5 位作者2004-05-29Journal of Physics Condensed Matter
We have synthesized La 0.67 Ca 0.33 MnO 3 (LCMO): x ZnO ( ) composites through a citrate gel route and have characterized them for magnetic and magnetotransport properties. In lower concentrations ( ), ZnO mostly goes into the perovskite lattice substituting Mn in LCMO and segregates less in the grain boundary region,…
Magnetic and transport properties of perovskites and related materialsMultiferroics and related materialsAdvanced Condensed Matter Physics
Hongchu Du、Fangli Yuan、Shulan Huang 等 5 位作者2004-05-29Chemistry Letters
Abstract A new reaction was developed to synthesize ZnO nanoparticles with nearly uniform, spherical morphologies and controlled size range from 25–100 nm via esterification between zinc acetate and ethanol under solvothermal condition. The ZnO nanoparticles were characterized by X-ray diffraction and transmission ele…
ZnO doping and propertiesQuantum Dots Synthesis And PropertiesCopper-based nanomaterials and applications
Heqing Huang、Stephen E. Rankin、Lynn S. Penn 等 5 位作者2004-05-29Langmuir
Tethering of monodisperse, chain-end-functionalized polymer from dilute solution to a solid surface shows three regimes of kinetics. This paper presents support for the hypothesis that the experimentally observed third regime is indeed the transition from mushroom to brush and that it occurs in a spatially nonuniform…
Surface Modification and SuperhydrophobicityPolymer Surface Interaction StudiesAdhesion, Friction, and Surface Interactions
Andrew J. Archer、Christos N. Likos、Robert Evans2004-05-29Journal of Physics Condensed Matter
We show that a simple soft-core binary fluid mixture with purely repulsive interactions exhibits a λ-line, i.e., a line of continuous transitions to a state characterized by undamped periodic concentration fluctuations (microphase separation). For states in the disordered fluid phase the bulk pair correlation function…
Phase Equilibria and ThermodynamicsMaterial Dynamics and PropertiesTheoretical and Computational Physics
Xiaosheng Fang、Changhui Ye、Xiaoxia Xu 等 6 位作者2004-05-29Journal of Physics Condensed Matter
α-Al 2 O 3 nanowires have been synthesized in bulk quantity by using simple physical evaporation of mixture of pure Al powders and nanometre-sized TiO 2 powders at 1150 °C. Scanning electron microscopy and transmission electron microscopy observations show that α-Al 2 O 3 nanowires have diameters ranging from 20 to 60…
ZnO doping and propertiesSemiconductor materials and devicesGa2O3 and related materials
Г. Б. Стефанович、A. L. Pergament、Andrei Velichko 等 4 位作者2004-05-29Journal of Physics Condensed Matter
Thin films of amorphous vanadium oxide have been prepared by electrochemical anodic oxidation. The phase composition of anodic films on vanadium has been shown to depend on the oxidation conditions (electrolyte composition, oxidation current, and time), and the stoichiometry can be controlled from V O2 to V2O5. Physic…
ZnO doping and propertiesTransition Metal Oxide NanomaterialsElectronic and Structural Properties of Oxides
Jason T. Calla、Robert J. Davis2004-05-29The Journal of Physical Chemistry B
Alumina-supported Au particles (1.16 wt %) were prepared by a deposition-precipitation method involving a HAuCl4 precursor. X-ray absorption spectroscopy at the Au L(III) edge was used to monitor the evolution of the Au oxidation state and atomic structure during pretreatment in He up to 623 K. Although the as-prepare…
Advanced Chemical Physics StudiesCatalytic Processes in Materials ScienceCatalysis and Oxidation Reactions
Jeong Won Kang、Sung‐Ho Hwang2004-05-29Journal of Physics Condensed Matter
This work, by means of molecular dynamics simulations, shows that the features of C 60 encapsulation into boron nitride nanotubes (BNNTs) are similar to the features of that into carbon nanotubes (CNTs), whereas the encapsulating and the internal dynamics of the C 60 @BNNT are different from those of the C 60 @CNT. Si…
Graphene research and applicationsDiamond and Carbon-based Materials ResearchBoron and Carbon Nanomaterials Research
Maxim G. Ryadnov、Derek N. Woolfson2004-05-29Journal of the American Chemical Society
Fiber Recruiting (FiRe) peptides are described. These are derivatives of self-assembling fiber (SAF) forming peptides that are conjugated with small molecules (in our case, biotin or a FLAG-tag octapeptide). The FiRe peptides are co-assembled into fibers and used as bait to recruit folded and functional proteins to th…
Supramolecular Self-Assembly in MaterialsSilk-based biomaterials and applicationsBone and Dental Protein Studies
Hideki Abe、Naoki Takahashi、Kang Ju Kim 等 5 位作者2004-05-29Biomacromolecules
Thermal degradation processes of end-capped poly(L-lactide)s (PLLAs) were investigated by means of several thermoanalytical techniques under both isothermal and nonisothermal conditions. Based on the thermogravimetric analysis, it was found that two distinct processes at temperatures below and above 330 degrees C were…
biodegradable polymer synthesis and propertiesCarbon dioxide utilization in catalysisBiopolymer Synthesis and Applications
Ian W. Hamley、Valeria Castelletto、Zhou Lü 等 6 位作者2004-05-29Macromolecules
Hierarchical ordering in a series of side-group liquid-crystal block copolymers was investigated in the bulk via differential scanning calorimetry (DSC), polarized light microscopy, small-angle X-ray scattering (SAXS), and small-angle neutron scattering (SANS). The diblock copolymers comprise a polystyrene block and a…
Liquid Crystal Research AdvancementsSurfactants and Colloidal SystemsBlock Copolymer Self-Assembly
Vladimir Privman、Denis Tolkunov2004-05-29arXiv
We review our recent results on short time approximations, with emphasis on applications for which the system-environment interactions involve a general non-Hermitian system operator and its conjugate. We evaluate the onset of decoherence at low temperatures in open quantum systems. The developed approach is complemen…
Mesoscale and Nanoscale PhysicsMaterials Sciencecond-mat.stat-mechStrongly Correlated Electronsquant-ph
H. Bréquel、Julien Parmentier、Steffen Walter 等 17 位作者2004-05-29Chemistry of Materials
Three silicon oxycarbide glasses (SiCO) with increasing C content were obtained through pyrolysis in inert atmosphere at 1000 °C of sol−gel derived siloxane networks containing Si−CH 3 and Si−H bonds. The glasses were further annealed at 1200, 1400, and 1500 °C to follow their evolution at high temperature. Quantitati…
Advanced ceramic materials synthesisGlass properties and applicationsBuilding materials and conservation
B. Lakshmi、G. Favrot、D. Heiman2004-05-29arXiv
The spin state of holes bound to Mn acceptors in GaMnAs is investigated by optical spectroscopy. Concentrations of Mn from 10^17 to 10^19 cm^-3 were studied as a function of magnetic field and temperature. The photoluminescence from recombination of electrons with holes bound in the Mn-acceptor complex (MAC) displays…
Materials Science
Jianfeng Zhang、Xiuzhi Susan Sun2004-05-29OpenAlex
Blending poly(lactic acid) (PLA) with wheat starch compatibized by maleic anhydride (MA) was performed with a lab-scale co-extruder. An initiator, 2,5-bis(tert-butylperoxy)-2,5 dimethylhexane (L101), was used to improve compatability among PLA, starch and MA. Interfacial adhesion between PLA and starch was significant…
biodegradable polymer synthesis and propertiesMicroplastics and Plastic PollutionCarbon dioxide utilization in catalysis