TY - JOUR
T1 - Preparation of mesocarbon microbeads and subsequent heating treatment
AU - Cheng, Youliang
AU - Li, Tiehu
AU - Li, Fengjuan
AU - Zhuang, Qiang
AU - Jing, Deqi
PY - 2009
Y1 - 2009
N2 - The preparation of mesocarbon microbeads (MCMB) has been studied by heating coal tar pitch with different phenyl silicone oil content at 350°C for 2h.The spheres with diameters ranging from 0.54 to 11.4?m were obtained. The as-extracted MCMB when the silicone oil/coal pitch value was 3 had a very homogeneous size, a small diameter and also an excellent sphericity. The yield of MCMB was 8.3%, and microcrystalline structure was better. After stabilization, the spheres carbonized at 900°C still kept spherical, but broken into small particles during the graphitization. The stabilization destroyed the microcrystalline structure of as-extracted MCMB, but the microcrystalline structure became better after carbonization. The structure of graphitized MCMB at 2300°C was close to the graphite structure, and clear graphitization fringes were observable.
AB - The preparation of mesocarbon microbeads (MCMB) has been studied by heating coal tar pitch with different phenyl silicone oil content at 350°C for 2h.The spheres with diameters ranging from 0.54 to 11.4?m were obtained. The as-extracted MCMB when the silicone oil/coal pitch value was 3 had a very homogeneous size, a small diameter and also an excellent sphericity. The yield of MCMB was 8.3%, and microcrystalline structure was better. After stabilization, the spheres carbonized at 900°C still kept spherical, but broken into small particles during the graphitization. The stabilization destroyed the microcrystalline structure of as-extracted MCMB, but the microcrystalline structure became better after carbonization. The structure of graphitized MCMB at 2300°C was close to the graphite structure, and clear graphitization fringes were observable.
KW - Coal tar pitch
KW - MCMB
KW - Microstructure
KW - Silicone oil
UR - http://www.scopus.com/inward/record.url?scp=68949088749&partnerID=8YFLogxK
U2 - 10.2202/1542-6580.2014
DO - 10.2202/1542-6580.2014
M3 - 文章
AN - SCOPUS:68949088749
SN - 1542-6580
VL - 7
JO - International Journal of Chemical Reactor Engineering
JF - International Journal of Chemical Reactor Engineering
M1 - A27
ER -