TW – Page 17 – TechConnect Briefs

The Reaction of Nano-scale Iron Fluidized in Microwave Radiation Field to Treat Chlorobenzene

Lee C-L, Wang H.P., Wang Y-S, Wu C-R, Wang H.P., Wang Y-S, Jou C.-J.G., National Kaohsiung First University of Science and Technology, TW

Microwave (MW) energy is combined with nano-scale iron particles fluidized in aqueous chlorobenzene (CB) solution for reducing the activation energy of CB to enhance it decomposition. When the metal particles are fluidized in solution, the [...]

Hydrothermal Growth of ZnO Nanostructures Using Zinc Thin Films as Seed Layer

Yang J-Y, Cheng H-W, Cheng T.-C., Cheng H-W, Cheng T.-C., Li Y., National Chiao Tung University, TW

Different zinc oxide nanostructures are selectively synthesized by a simple reaction of zinc acetate dihydrate with hexamethyltetramine (HMT) under mild hydrothermal conditions using zinc thin films as seed layer. Scanning electron microscopy (SEM) result of [...]

Preparation of Nanosize Copper Recycled from an Electroplating Wastewater

Huang C.H., Wang H.P., National Cheng Kung University, TW

Chemical structure of copper recycled directly from an electroplating (EP) wastewater for preparing core-shell nanoparticles has been studied by X-ray based spectroscopy in the present work. Experimentally, about 40-50% of copper in the EP wastewater [...]

Preparation of nitrogen-doped mesoporous TiO2 with a room-temperature ionic liquid

Hsiung T-L, Wang H.P., Wei Y-L, National Cheng Kung University, TW

A nitrogen-doped mesoporous TiO2 (N-TiO2) was synthesized using a room-temperature ionic liquid (RTIL) (C4mimBF4) as the template. By 1H NMR (Figure 1), interactions between Ti and nitrogen of the RTIL are observed. The nanosize mesoporous [...]

Microwave-assisted superparamagnetic FePt synthesis for MRI application

Tsai J.L., Tsai M.J., Tsai T.Y., Tsai J.L., Tsai M.J., Tsai T.Y., Tsai J.L., Tsai M.J., Tsai T.Y., Lai P.S., National Chung Hsing University, TW

uperparamagnetic iron oxide (SPIO) nanoparticles have demonstrated their practicability as MRI T2-shortening agents for non-invasive cell labeling, drug delivery or tumor detections in clinical practice. Recently, superparamagnetic chemically disordered face-centered cubic (fcc) FePt nanoparticles has [...]

Formation mechanism of copper-silver metal nanoparticle encapsulated in carbon shell

Kang H.Y., Wang H.P., Huang C.H., Tsai C.K., National Cheng Kung University, TW

The formation mechanism of nanosize copper-silver encapsulated in the inert carbon shell (CuAg@C) has been studied by in-situ small angle X-ray scattering (SAXS) spectroscopy. SAXS is a very useful method in studies of electron density [...]

Incorporation of plasma modified multi-walled carbon nanotubes into TiO2 photoanode for dye-sensitized solar cells (DSSC)

Chan Y.F., National Cheng Kung University, TW

Dye-sensitized solar cells (DSSC) are fabricated using photoanode comprises of nanocomposite material of TiO2 and multi-walled carbon nanotubes (MWNT) treated in situ by plasma and subsequent functionalization by grafting of maleic anhydride (MA). The carboxyl [...]

Evaluation of Uncertainty in Nanoparticle Size Measurement by Differential Mobility Analysis

Lin C-M, Yu T.-C., Lai S.H., Ho H.C., Weng H.F., Wang S-H., Chen C-J., Center for Measurement Standards, Industrial Technology Research Institute, TW

This paper presents the measurement results and the uncertainty analysis for four batches of polystyrene latex (PSL) spheres with nominal sizes of 20 nm, 100 nm, 300 nm and 500 nm using the measurement system [...]

Theoretical Studies in Epitaxial Stabilization of ZnO-based Light-emitting Semiconductors

Liu P-L, Siao Y-J, Lee M.H., National Chung Hsing University, TW

The device quality ZnO films are expected to next generation materials applied in the field of photo-electronic devices. We find that (0001)-oriented ZnO, Zn0.875Be0.125O, Zn0.875Mg0.125O, and Zn0.875Al0.125O strained layer lattices soften as lattice parameter of [...]

Growth and optical properties of high-density InN nanodots

Ke W.C., Lee S.J., Lee T.C., Kao C.Y., Chen W.K., Cheng Y.C., Chou W.C., Chang W.H., Lin J.C., Lin W.J., Cheng Y.C., Lee S.J., Lee T.C., Lin J.C., Lin W.J., Yuan Ze University, TW

High density InN/GaN nanodots were successfully grown by pulsed mode (PM) metal organic chemical vapor deposition (MOCVD). InN nanodots density of up to ~5×1010 cm-2 at a growth temperature of 550 ℃ was achieved The [...]