Now showing items 21-30 of 2359
Preparation and characterization of cellulose-coated chitosan beads with improved strength and acid resistivity
(J APPL POLYM SCI, 2012-10-25)
A new chitosan bead was successfully prepared by simply dropping acidic chitosan solution into 0.5 wt % alkaline cellulose solution. The X-ray photoelectron spectroscopy analysis and the scanning electron microscope ...
First-principles investigation on the phase stability and chemical bonding of mInSbnInTe phase-change random alloys
(SOLID STATE COMMUN, 2010-08)
The phase stability and bond character of mInSb.nInTe (m = 1, n = 2 or 3) phase-change materials have been investigated by means of ab initio calculations. The results show that In(3)SbTe(2) (IST312) is a metastable phase ...
Self-assembly of natural tripeptide glutathione triggered by graphene oxide
(SOFT MATTER, 2012)
A facile and straightforward approach for the preparation of graphene oxide-triggered self-assembly of natural tripeptide glutathione gels with different structures is reported. The morphologies of glutathione/graphene ...
Comment on "Formation of Large Voids in the Amorphous Phase-Change Memory Ge2Sb2Te5 Alloy" Reply
(PHYS REV LETT, 2010-01-08)
The effect of matrix morphology on nanocomposite properties
In order to understand the effect of bulk matrix morphology on polymer nanocomposite properties, nanocomposites containing chemically similar but morphologically different polyamide matrices and carbon nanofibers were ...
Biomimetic growth of hydroxyapatite on phosphorylated electrospun cellulose nanofibers
(CARBOHYD POLYM, 2012-11-06)
In biomimicking the formation of collagen fiber/hydroxyapatite (HAp) in natural bone, electrospun cellulose nanofiber(CelluNF)/HAp composites were synthesized in simulated body fluid (SBF). Their morphology and structure ...
Investigation on preparing boron nitride by nitriding pure boron at 1200-1550 degrees C
(PROG NAT SCI-MATER, 2012-10)
Boron nitride (BN) was prepared by nitriding pure boron (B) deposited on carbon substrates by chemical vapor deposition (CVD). Thermodynamic analysis of preparing BN by nitriding CVD B at 1200-1550 degrees C was firstly ...
Electronic mechanism of shear modulus enhancement in rare earth intermetallics Yb1-xTmxAl3
Rare earth elements doped thermoelectric materials Yb1-xMxAl3 (M = Ho, Er and Tm) demonstrated anomalously enhanced shear modulus [Zhou J et al, Intermetallics, 2010; 18:2394]. However, the origin of the shear modulus ...
Assembly of Silver Nanoparticles in Pearl-Necklace-Like Nanostructure Using a Polyelectrolyte
(CURR NANOSCI, 2010-12)
Pearl-necklace-like Ag nanostructures are prepared with microwave irradiation in a one-step process using polymethacrylic acid (PMAA) as a reducing agent, and AgNO(3) as a silver precursor without other chemical agent in ...
Ab initio study of Sb2SexTe3-x(x=0, 1, 2) phase change materials
(SOLID STATE SCI, 2011-01)
By means of ab lain total energy calculations, we have investigated the structure and properties of Sb2SexTe3-x (x = 0, 1, 2) alloys, a family of phase change materials for data storage. On the basis of analyzing the ...