Advanced Materials & Manufacturing – Page 344

Fuel cell catalysts based on core-shell nanoparticles

Xu H., Zalitis C., Rivera-Hernandez M., Albrecht T., Kucernak A., Imperial College London, UK

In this contribution, we focus on the different approaches to dispersing Pt and Co/Pt core/shell nanoparticles in solution and then depositing them on representative catalyst supports. These include gold or highly ordered pyrolytic graphite (HOPG) [...]

Size dependent photoluminescence characteristics of GaN nanoparticles

Chen Y., Kang K.S., Jyoti N., Kim J., Inha University, KR

Various size of GaN nanoparticles have been fabricated with sol-gel method using Ga(NO3)3 as a presusor, HNO3 as a solvent, NH3OH as a pH adjusting agent, and citric acid as a chelating agent. After adding [...]

Synergistic effect of Cobalt and Nitrogen doping on Anatase Titania for Photodegradation under Visible light

Binitha N.N., Yaakob Z., Silija P.P., Resmi M.R., Suraja P.V., National University of Malaysia, MY

This work reports on the synergistic effect of cobalt on Carbon and Nitrogen codoped anatase titania photocatalysts prepared via sol–gel method using urea as the nitrogen source. Visible light activity is achieved as result of [...]

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 [...]

Microwave-assisted synthesis of water soluble ZnSe@ZnS quantum dots

Bailon-Ruiz S.J., Perales-Perez O., Singh S.P., University Of Puerto Rico at Mayaguez, PR

Semiconductors nanocrystals known as quantum dots (QD’s) have attracted much attention because of their optical properties can be tuned just by controlling their crystal-size, composition and shape at the nanoscale. Compared to organic dyes, quantum [...]

Synthesis of Nanocrystalline VOx/MgO Aerogels and Their Application for Destructive Adsorption of CF2Cl2

Ilyina E.V., Mishakov I.V., Vedyagin A.A., Bedilo A.F., Klabunde K.J., Boreskov Institute of Catalysis, RU

Nanocrystalline VOx/MgO is extensively studied as a potential catalyst and adsorbent. In this commutation we shall report further advances to the recently developed method for synthesis of binary VOx/MgO aerogels by hydrolysis of the V [...]

Synthesis of nanocrystalline (Zn1-xCox)Al2O4 solid solution: structural and optical properties

Fernández-Osorio A., Hernández- Mendoza D., Pineda-Villanueva E., Universidad Nacional Autonoma de Mexico, MX

New inorganic pink pigments based on nanocrystalline (Zn1-xCox)Al2O4 solid solution, were prepared using the hydrothermal method, obtaining nanoparticles below 8 nm. The spinel ZnAl2O4 was chosen as host hue to introduce Co(II) ions, because zinc [...]

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 [...]

Application of Sugimoto model on particle size prediction of colloidal TiO2 nanoparticles

Mehranpour H., Askari M., Ghamsari M.S., Farzalibeik H., Sharif University of Technology, IR

This can be provided by understanding the nucleation and growth mechanism of nanoparticles. In this paper, the nucleation and the growth of TiO2 nanoparticles were studied with Sugimoto model, in a homogeneous closed system which [...]