| 초록 |
In this study, we studied effect of high temperature treated ketjen blacks (HTKBs) on crystalline structure and surface properties. The temperature of heating treatment was conducted in 1600~2800oC (HTKB1600, HTKB2100, HTKB2500, and HTKB2800). Each temperature HTKBs were indicated various properties. The structure and crystallization were determined by X-ray diffraction (XRD). Scanning electron microscope (SEM) and transmission electron microscope (TEM) results showed morphologies of HTKBs. Surface properties were investigated by using several techniques such as, specific surface area, surface free energy, Boehm titration, and zeta potential. Electrical conductivity was studied by direct current four-probe conductivity measurements. |
