The Influence of Ammonia Addition on the Surface Characteristics of Fe3O4/Carbon Nanoparticles in Submerged Arc Discharge

The main objective of the present paper is to clarify the effect of anode/cathode geometry combinations on the yield rate and quality of the Multiwalled Carbon Nanotubes (MWCNTs) produced by submerged arc discharge technique. The effects of current intensity and the discharging medium (solvent) are also investigated. The morphology and crystalline perfection of the produced MWCNTs are confirmed by transmission electron microscopy (TEM) and Electron diffraction. Thermogravimetric analysis (TGA) is conducted to check the quality of the MWCNTs in a quantitative manner. The flat ended anode/cathode combination of diameters 4 and 12 mm respectively exhibited the highest yield at 70 A using deionized water as solvent. Through careful selection of the process parameters, the yield rate of MWCNTs obtained is found to be higher than most of the reported values in literature. However, the best quality of MWCNTs with purity as high as 95%, average thermal stability of 745°C as well as good batch homogeneity, is obtained with KCl solution and tapered male/female anode combination. The best quality MWCNTs is used successfully as reinforcement for A356 aluminum silicon composite.

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Surface treatment of carbon nanoparticles by nitrogen/oxygen alternating current arc discharge and the application in ABS/EPDM composites

Composites Part B Engineering ◽

10.1016/j.compositesb.2017.07.082 ◽

2017 ◽

Vol 129 ◽

pp. 97-106 ◽

Cited By ~ 3

Author(s):

F. Wang ◽

D.L. Sun ◽

R.Y. Hong ◽

M.R. Kumar

Keyword(s):

Surface Treatment ◽

Carbon Nanoparticles ◽

Arc Discharge ◽

Alternating Current

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Novel quantification for silver ion generated by the submerged arc discharge method

International Journal of Materials and Product Technology ◽

10.1504/ijmpt.2019.097676 ◽

2019 ◽

Vol 58 (2/3) ◽

pp. 239

Author(s):

Kuo Hsiung Tseng ◽

Chih Ju Chou ◽

Sheng hao Shih ◽

Der Chi Tien ◽

Hsueh Chien Ku ◽

...

Keyword(s):

Arc Discharge ◽

Silver Ion ◽

Discharge Method ◽

Submerged Arc

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Single-step synthesis of nanocomposite of copper and carbon nanoparticles using arc discharge in liquid nitrogen

Materials Chemistry and Physics ◽

10.1016/j.matchemphys.2009.02.060 ◽

2009 ◽

Vol 116 (1) ◽

pp. 125-128 ◽

Cited By ~ 18

Author(s):

Tawatchai Charinpanitkul ◽

Apinan Soottitantawat ◽

Nattaporn Tonanon ◽

Wiwut Tanthapanichakoon

Keyword(s):

Liquid Nitrogen ◽

Carbon Nanoparticles ◽

Arc Discharge ◽

Single Step

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Relationship between Ag nanoparticles and Ag ions prepared by arc discharge method

Nanotechnology Reviews ◽

10.1515/ntrev-2017-0167 ◽

2018 ◽

Vol 7 (1) ◽

pp. 1-9 ◽

Cited By ~ 3

Author(s):

Kuo-Hsiung Tseng ◽

Chih-Ju Chou ◽

To-Cheng Liu ◽

Der-Chi Tien ◽

Chun Yung Chang ◽

...

Keyword(s):

Arc Discharge ◽

Electric Arc ◽

Submicron Particles ◽

Silver Colloid ◽

Dilution Factor ◽

Upward Trend ◽

Chemical Substances ◽

Vis Spectroscopy ◽

Discharge Method ◽

Submerged Arc

AbstractThis study used the submerged arc discharge method (SADM) to produce metal fluid containing nanoparticles and submicron particles, whereby the energy focused by an electric arc was used to disintegrate silver (Ag) metal in deionized water (DW). No additional chemical substances were required throughout the process, which enabled production to be fast and straightforward. This study proposed using colorimetry to define the interrelation between concentration and nano Ag as well as the Ag ions (Ag+) within a nano silver colloid (NSC) of a specific dilution factor, involving ultraviolet-visible (UV-Vis) spectroscopy and the measuring of electrical conductivity. The results showed that Ag+activity increased under various dilution conditions, displaying an upward trend in activity with an increase in the dilution factor. The absorption values of Ag+and nanoparticles increased over time, and the Ag+activity increased by up to a factor of two after its dilution. Therefore, the Ag+and nanoparticles demonstrated an interdependence between each other.

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