Li Y.Y. – TechConnect Briefs

Fabrication of the α–Fe2O3 nanowires and application of the photodetector/optical switching

Hsu L.C., Li Y.Y., National Chung Cheng University, TW

In this study, we demonstrate a rapid and easy method to synthesis α-Fe2O3 nanowires (NWs). The density of the α-Fe2O3 NWs were successfully control by different thickness of Fe thin film within 10 hours by [...]

Synthesis of platelet carbon nanofibers by an injection CVD method and their applications in hydrogen storage

Wu H.C., Li Y.Y., National Chung Cheng University, TW

In this manuscript, there are some significant results summarized as follows: 1. The platelet graphite nanofiners (PGNFs)were continuously produced by a vertical chemical vapor deposition reactor. 2. A detailed study found that the sulfur concentration [...]

Platelet graphite nanofibers synthesized by the pyrolysis of poly(ethylene glycol)/hydrochloric acid mixture and nickel catalyst

Lin W-H, Li Y.Y., Lin W-H, National Chung Cheng University, TW

The synthesis of platelet graphite nanofibers (PGNFs) by the thermal decomposition of mixture contain poly(ethylene glycol) (PEG) and hydrochloric acid (HCl) at 700 oC using Ni as a catalyst.The PGNFs synthesized with mix HCl in [...]

A simple route to synthesize impurity-free high-oriented SiOx nanowires

Chiu S.C., Li Y.Y., National Chung Cheng University, TW

Impurity-free silicon oxide nanowires were synthesized on a 3 cm x 3 cm alumina plate uniformly by thermal evaporation of a mixture of powder of graphite powders and Si-SiOx particles under argon atmosphere with a [...]

Growth _–Fe2O3 nanowires with different crystal direction of iron film

Hsu L.C., Li Y.Y., National Chung Cheng University, TW

–Fe2O3 nanowires (NWs) were synthesis from different crystal direction of iron film by thermal oxidation in oven. The crystal direction of iron film was successfully control by sputtering 50 nm iron on different direction of [...]

Thermostability of TiO2 nanoparticle and its Photocatalytic Reactivity at Different Anatase/Rutile Ratio

Tseng Y-H, Lin H-Y, Kuo C-S, Li Y.Y., Lin H-Y, Huang C.P., Industrial Technology Research Institute, TW

Thermostability study of commercial P25 TiO2 nanoparticles was carried out by ascending annealing temperature from 400 to 1100 oC. The thermostability of TiO2 structure was measured by X-ray diffraction (XRD). Anatase-Rutile phase transition occurred only [...]

Sol-gel synthesis and photoluminescent characteristics of Eu doped Gd2O3 nanophosphors

Lin C.C., Lin K.M., Lin C.C., Lin K.M., Li Y.Y., Lin C.C., Lin K.M., National Chung Cheng University, TW

Eu-ion doped Gd2O3 nanophosphor powders were prepared by sol-gel method using GdCl3 and EuCl3 at 800-1100 oC. The size of phosphors was about 50-200nm depending on the synthesis temperature for 2hr. Nanophosphors was examined by [...]

Synthesis silica sphere and core-shell Gd2O3:Eu3+@SiO2 phosphor nanoparticles by sol-gel method

Lin C.C., Lin K.M., Lin C.C., Lin K.M., Li Y.Y., Lin C.C., Lin K.M., National Chung Cheng University, TW

The welldispers and nano-scale of silica sphere were synthesized through sol-gel process by TEOS as the precursor at room temperature. We also can control sphere size with the diameter 60 nm, 180 nm and 300 [...]

Thermostability of TiO2 nanoparticle and its Photocatalytic Reactivity at Different Anatase/Rutile Ratio

Tseng Y-H, Lin H-Y, Kuo C-S, Li Y.Y., Lin H-Y, Huang C.P., Industrial Technology Research Institute, TW

Thermostability study of commercial P25 TiO2 nanoparticles was carried out by ascending annealing temperature from 400 to 1100 oC. The thermostability of TiO2 structure was measured by X-ray diffraction (XRD). Anatase-Rutile phase transition occurred only [...]

In Situ Synthesis of Carbon Nanotubes by Polymer Materials

Huang C.W., Hsu L.C., Li Y.Y., CCU, TW

Catalytically grown carbon nanotubes were prepared by in situ thermal decomposition of the polymer materials. Polymer material (PEG, polyethylene glycol) was employed as carbon source and nickel-based materials were used as catalytic precursors. These materials [...]