Kinetic Investigation of Carbon Nanotube Deposition by DC Electrophoretic Technique

In this paper, kinetics of dc electrophoretic deposition (epd) of carbon nanotubes (cnts) are investigated. suspension of carbon nanotubes in pure ethanol with addition of magnesium nitrate was used as deposition media. the effect of main epd parameters such as deposition time, applied voltage and the cnts concentration on deposit yield were investigated. the variation of current density vs. time and the effect of magnetic stirring were also examined. the results are in good agreement with hamaker's law and the deposit yield increases with increasing of applied voltage and cnts concentration but there is a deviation from linear trend in longer deposition times. stirring could compensate some of this deviation but increases the current density fluctuations. prog. color colorants coat. 4(2011), 51-58. © institute for color science and technology.