Japan Advanced Institute of Science and Technology

Direct imprinting of liquid silicon

Masuda T., Shimoda T., Japan Advanced Institute of Science and Technology, JP

Silicon is one of the most important materials for electronics. The most widespread process for microfabrication technology of silicon is photolithography including etching process. However, huge capital outlay and large-scale equipment has been recognized as [...]

Effects of Preparation Methods and Electronic States of the AuPd Bimetallic Nanoparticles on the Activity for Aerobic Oxidation of Alcohols

Nishimura S., Yakita Y., Katayama M., Higashimine K., Ebitani K., Japan Advanced Institute of Science and Technology, JP

Bimetallic nanoparticles (NPs) have attracted great interests and potentials in advanced nancatalysts because they achieved unique catalytic performances different from those of monometallic NPs. However, the contributions of their morphologies and/or electronic states to the [...]

Effects of Preparation Methods and Electronic States of the AuPd Bimetallic Nanoparticles on the Activity for Aerobic Oxidation of Alcohols

Nishimura S., Yakita Y., Katayama M., Higashimine K., Ebitani K., Japan Advanced Institute of Science and Technology, JP

Bimetallic nanoparticles (NPs) have attracted great interests and potentials in advanced nancatalysts because they achieved unique catalytic performances different from those of monometallic NPs. However, the contributions of their morphologies and/or electronic states to the [...]

Spectroscopic study on the charge redistribution between Au and Ag in Au@Ag core-shell nanoparticles

Nishimura S., Anh D.T.N., Mott D., Ebitani K., Maenosono S., Japan Advanced Institute of Science and Technology, JP

Charge transfer in heteromeric structures such as Au@Ag core-shell nanoparticles (NPs) and Au@Ag@Au double-shell NPs was demonstrated using X-ray absorption near-edge structure (XANES) and X-ray photoelectron spectroscopy (XPS) techniques. XANES analyses confirmed that the d-orbital [...]

In Situ Quick XAFS Study on the Formation Mechanism of Cu Nanoparticles Synthesized in Aqueous Phase

Nishimura S., Takagaki A., Maenosono S., Ebitani K., Japan Advanced Institute of Science and Technology, JP

The formation mechanism of copper nanoparticles (NPs) using poly(N-vinyl-2-pyrrolidone) (PVP) as a capping agent was investigated by measurements of X-ray diffraction (XRD), transmission electron microscopy (TEM), in situ time-resolved X-ray adsorption fine structure (XAFS) analysis, [...]