Preparation of TiO2 nanoparticles by submerged arc nanoparticle synthesis system

2010 ◽  
Vol 495 (2) ◽  
pp. 476-480 ◽  
Author(s):  
Liang-Chia Chen
Keyword(s):  
Tio2 Nanoparticles ◽  
Nanoparticle Synthesis ◽  
Synthesis System ◽  
Submerged Arc

Fabrication of copper oxide nanofluid using submerged arc nanoparticle synthesis system (SANSS)

2005 ◽  
Vol 7 (2-3) ◽  
pp. 313-320 ◽  
Author(s):  
Chih-Hung Lo ◽  
Tsing-Tshih Tsung ◽  
Liang-Chia Chen ◽  
Chun-His Su ◽  
Hong-Ming Lin
Keyword(s):  
Copper Oxide ◽  
Nanoparticle Synthesis ◽  
Synthesis System ◽  
Submerged Arc

Preparation of silver nanofluid by the submerged arc nanoparticle synthesis system (SANSS)

2007 ◽  
Vol 434-435 ◽  
pp. 659-662 ◽  
Author(s):  
Chih-Hung Lo ◽  
Tsing-Tshih Tsung ◽  
Hong-Ming Lin
Keyword(s):  
Nanoparticle Synthesis ◽  
Synthesis System ◽  
Submerged Arc

Photocatalytic and UV Characterization of TiO2 Nanofluid Prepared by SANSS on HVAC

2007 ◽  
Vol 364-366 ◽  
pp. 937-941
Author(s):  
Ching Song Jwo ◽  
Chien Chih Chen ◽  
Ho Chang ◽  
Sih Li Chen ◽  
Shin Jr Ho
Keyword(s):  
Ambient Pressure ◽  
Nanoparticle Synthesis ◽  
Ammonia Emission ◽  
Synthesis System ◽  
Reaction Cell ◽  
Simple Measurement ◽  
Degradation Reaction ◽  
Submerged Arc ◽  
Ammonia Flux

This study develops a measurement method for testing the efficiency of photocatalysts in the degradation of NH3 gaseous concentrations. The catalysts used in this study are the same as those used previously in our UV/VIS spectrophotometer. Reaction measurements were carried out at 27°C and 17°C under ambient pressure on Heat Ventilating and Air Conditioning (HVAC) system. Quartz plates were coated with TiO2 nanocatalyst. Then the plate was put in the stable reaction cell under different flow rates of circulation. The experiment gives a direct and simple measurement of ammonia flux and hence of overall ammonia emission rate. The results reveal that the Submerged Arc Nanoparticle Synthesis System (SANSS) TiO2 nanocatalyst has excellent degradation efficiency towards NH3, so that when it is exposed to UV irradiation for 60 minutes, the gaseous concentration can be reduced to 10% of the original concentration. In addition, the rate constant of the degradation reaction of the self-made TiO2 nanocatalyst towards NH3 is as high as 0.039min-1.

A Study on Dynamic Stability of the Fe3O4 Magnetorheological Fluid

2007 ◽  
Vol 561-565 ◽  
pp. 2175-2178
Author(s):  
Ho Chang ◽  
Kuan Lin Tsai ◽  
Tsing Tshih Tsung
Keyword(s):  
Dynamic Stability ◽  
Nanoparticle Synthesis ◽  
Magnetorheological Fluid ◽  
Superior Performance ◽  
Synthesis System ◽  
Magnetic Nanofluid ◽  
Particle Size Analyzer ◽  
Magnetic Microparticle ◽  
Submerged Arc ◽  
Off Time

In this paper investigates the dynamic stability of Fe3O4 magnetorheological fluid produced by Submerged Arc Nanoparticle Synthesis System which our team has modified, that is, the dynamic stability of magnetic microparticle in Brownian motion. Through this modified system, parameters such as the exact peak current, the time of discharge and off time, and voltage can be preset. The results of the experiment show that the Fe3O4 magnetorheological fluid produced by the modified submerged arc nanoparticle synthesis system has wt 20% and vol 1% surfactants after being mixed with water. After being placed aside for one day and 15 days respectively, the average diameters of the two nanofluid measured with particle size analyzer and TEM are both 40nm. Furthermore, after analyzed through Brookhaven ZetaPlus the zeta potential of the two nanofluid both reach 40mv, which proves that the magnetic nanofluid show superior performance of suspension.

scholarly journals Stabilization Methods in the Submerged Arc Discharge Synthesis of Carbon Nanostructures

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Lorenzo Hernandez-Tabares ◽  
Juan G. Darias-Gonzalez ◽  
Frank J. Chao-Mujica ◽  
Luis M. Ledo-Pereda ◽  
Manuel Antuch ◽  
...  
Keyword(s):  
Carbon Nanostructures ◽  
Arc Discharge ◽  
Control Strategies ◽  
Nanoparticle Synthesis ◽  
Electrode Erosion ◽  
Arc Power ◽  
Key Factor ◽  
Product Homogeneity ◽  
Method Analysis ◽  
Submerged Arc

Many papers, in which the submerged arc discharge (SAD) method in nanoparticle synthesis was used, reported similar operating parameters, but different electrode erosion rate values, different yields and purities of the obtained nanostructures, and a different sort of contaminants present in the synthesis. Analyzing these articles, we found insufficient attention to ensure the arc power stability, which is a key factor guaranteeing the product homogeneity and quality. This paper presents an analysis of different control strategies, remarks their advantages and drawbacks, and proposes the most appropriate technique to be used in SAD. The most appropriate technique is proposed from the SAD stabilization method analysis.

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