alloy – TechConnect Briefs

Optimization of Catalyst Nano-structures through Alloying and De-alloying Process—Research on Ag-Co catalyst for Catalytic Oxygen Reduction in Alkaline Media

Jiang R., U.S. Army Research Laboratory, US

Optimization of particle size and particle’s nano-structure at the atomic level can precisely and effectively tune catalytic properties of materials, and enabling enhancement in both catalytic activity and stability. We synthesized a highly active and [...]

Highly Crystalline Poly(lactic acid) (PLA) Alloys Containing Stereocomplexes

Oyama H.T., Abe S., Rikkyo University, JP

Poly(lactic acid) (PLA) is known as a bio-based polymer, which usually has low heat tolerance. Furthermore, the brittleness of PLA limits its applications. It is reported that the melting temperature (Tm) of crystalline stereocomplexes (sc) [...]

Electropulsing induced nanophase decomposition and structural characteristics of film of alloy ZA27

Zhu Y., To S., Lee W.B., Hong Kong Polytechnic University, CN

Nanophases appear very stable and hardly decompose completely under conventional thermal aging, because of their strong preferred crystal orienttation. As one of the advanced processes, electropulsing has been recognized for its efficiency in reducing residual [...]

Optical Properties of Ternary Alloyed Cd1-xZnxSe Semiconductor Nanocrystals

Chen I-H., Wang K-W, Chung S-R, National Formosa University, TW

In order to obtain high quantum yield (QY) nanocrystals and simplify the preparation procedure, one-pot synthetic method is conducted to prepare ternary alloyed nanocrystals. Ternary alloyed Cd1-xZnxSe (x=0, 0.2, 0.5, 0.8 and 1) semiconductor nanocrystals [...]

AuAg-alloy-nanoprobes for specific nucleic acid detection

Doria G., Larguinho M., Dias J.T., Pereira E., Franco R., Baptista P., CIGMH/DCV & REQUIMTE/DQ, PT

Due to their unique optical properties, noble metal nanoparticles, and in particular gold nanoparticles (AuNPs), have been extensively used for the development of new molecular diagnostic assays[1]. These optical properties derive from the characteristic surface [...]

An Embedded Atom Method for Alloy Nanoparticles

Shan B., Hyun J., Wang L., Yang S., Kapur N., Nicholas J.B., Nanostellar Inc., US

We present the development and application of a high-accuracy embedded atom method (EAM) potential for the simulation of metal alloy nanoparticles. The potential was parametrized by a large set of density functional theory (DFT) calculations [...]