Effects of Surface Fluorination on the Dispersion Stability and the Electrical Conductivity of SnO2 Particles Using Fluorine Gas
F contents in SnO2 powder was adjusted using fluorine gas (F2 gas). From XPS and XRD results of fluorinated SnO2 particles, it proved that the particle surface could be fluorinated without change of crystal structure. Comparing with untreated SnO2, the fluorinated SnO2 made to improve the dispersion stability. In addition, the surface fluorination of SnO2 particles could improve the electrical conductivity (approximately 75Sm-1) under a fluorine pressure of 66.7 kPa at 200°C for 1h.