TY - JOUR
T1 - Formation of different arc-anode attachment modes and their effect on temperature fluctuation for carbon nanomaterial production in DC arc discharge
AU - Liang, Feng
AU - Tanaka, Manabu
AU - Choi, Sooseok
AU - Watanabe, Takayuki
N1 - Funding Information:
The first author (Feng Liang) is grateful for the financial support from the High-level Scientific Research Foundation for the Introduction of Talents in Kunming University of Science and Technology (KKSY201552014), the Scientific Research Foundation of Yunnan Provincial Education Department (KKJA201552027), the Applied Basic Research Programs of Yunnan Provincial Science and Technology Department (KKS0201652014).
Publisher Copyright:
© 2017 Elsevier Ltd
PY - 2017/6/1
Y1 - 2017/6/1
N2 - Diffuse and multiple arc-anode attachment modes were observed when using DC arc discharge to prepare carbon nanomaterials. The effects of arc current and electrode gap distance on the formation of different attachment modes were investigated. The formation of different attachment modes is explained by the competition of the cathode jet and the anode jet. During the arc discharge, the surface temperature of the carbon electrode was measured by two-colour pyrometry combined with a high-speed camera employing appropriate band-pass filters. The relationship between the arc-anode attachment mode and the temperature fluctuation of the electrode surface was investigated. Due to the unbalanced Lorenz force, the rotation of arc spot was severe in diffuse arc-anode attachment mode, which led to relatively large temperature fluctuations on the anode surface, resulting in low purity of synthesised multi-wall carbon nanotubes on the anode deposit.
AB - Diffuse and multiple arc-anode attachment modes were observed when using DC arc discharge to prepare carbon nanomaterials. The effects of arc current and electrode gap distance on the formation of different attachment modes were investigated. The formation of different attachment modes is explained by the competition of the cathode jet and the anode jet. During the arc discharge, the surface temperature of the carbon electrode was measured by two-colour pyrometry combined with a high-speed camera employing appropriate band-pass filters. The relationship between the arc-anode attachment mode and the temperature fluctuation of the electrode surface was investigated. Due to the unbalanced Lorenz force, the rotation of arc spot was severe in diffuse arc-anode attachment mode, which led to relatively large temperature fluctuations on the anode surface, resulting in low purity of synthesised multi-wall carbon nanotubes on the anode deposit.
UR - http://www.scopus.com/inward/record.url?scp=85014085701&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85014085701&partnerID=8YFLogxK
U2 - 10.1016/j.carbon.2017.02.084
DO - 10.1016/j.carbon.2017.02.084
M3 - Article
AN - SCOPUS:85014085701
SN - 0008-6223
VL - 117
SP - 100
EP - 111
JO - Carbon
JF - Carbon
ER -