TY - GEN
T1 - Perflourocarbon generation during electrolysis in molten fluoride
AU - Wang, Guihua
AU - Wang, Xiangsheng
AU - Zhu, Hongmin
PY - 2011
Y1 - 2011
N2 - The anode process of carbon electrode in fluoride melt was studied by voltammetry and chronoamperometry. Anode gases were analyzed by gas chromatography on-line during controlled-potential electrolysis. Two peaks were observed on the cyclic voltammograms. According to the results of gas chromatography, the first peak was corresponded to the discharge of residual oxide ions, with the formation of CO and CO2. Discharge of fluoride ions occurred at 4.1 V vs. Li+/Li, and leading to the anode effect. With the occurrence of anode effect, small amount of CF4 was detected. As the potential reached 4.5 V, CF4 and C2F 6 gas evolution occurred, and the current increased to form the second peak.
AB - The anode process of carbon electrode in fluoride melt was studied by voltammetry and chronoamperometry. Anode gases were analyzed by gas chromatography on-line during controlled-potential electrolysis. Two peaks were observed on the cyclic voltammograms. According to the results of gas chromatography, the first peak was corresponded to the discharge of residual oxide ions, with the formation of CO and CO2. Discharge of fluoride ions occurred at 4.1 V vs. Li+/Li, and leading to the anode effect. With the occurrence of anode effect, small amount of CF4 was detected. As the potential reached 4.5 V, CF4 and C2F 6 gas evolution occurred, and the current increased to form the second peak.
KW - Electrochemical methods
KW - Fluoride
KW - Gas chromatography
KW - PFC emission
UR - http://www.scopus.com/inward/record.url?scp=79960635289&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79960635289&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:79960635289
SN - 9781118036518
T3 - TMS Annual Meeting
SP - 131
EP - 135
BT - Energy Technology 2011
T2 - Energy Technology 2011: Carbon Dioxide and Other Greenhouse Gas Reduction Metallurgy and Waste Heat Recovery - Held During the TMS 2011 Annual Meeting and Exhibition
Y2 - 27 February 2011 through 3 March 2011
ER -