新型炭材料（中英文）2024，Vol.39Issue(4)：645-654,10.DOI:10.1016/S1872-5805(24)60866-8
富勒烯诱导体型中间相沥青形成中间相炭微球
Formation of mesophase microbeads from bulk mesophase pitch induced by fullerene
摘要
Abstract
A transformation of naphthalene-based coalescenced mesophase pitch(NMP)to mesophase microbeads was achieved by heating a mixture of NMP and fullerene(C60).This is different from the conventional process of the liquid-phase carbonization of isotropic pitch to the emergence of carbon microbeads in the matrix and finally their growth to form a 100％anisotropic bulk meso-phase,but rather a reverse transformation.The effects of C60 loading and reaction temperature on the morphological transformation of mesophase were investigated by polarizing optical and scanning electron microscopies.The physical changes in the NMP induced by C60 were characterized by thermogravimetric analysis,Fourier transform infrared spectroscopy,X-ray diffractometry and Raman spectroscopy.The results show that the coalesced NMP can be converted to a spherical type at 300-320 ℃ with the addition of 5％C60,and the size of the mesophase microbeads increases with increasing temperature.Furthermore,a model is established to ex-plain the unique induction effect of C60 in the transformation process.This work makes the morphological transformation of MP con-trollable,and provides a new idea for the understanding and research of mesophase pitch.关键词
逆向转化/富勒烯诱导机理/中间相织构/π电子诱导效应/中间相微球Key words
Reversible transformation/Fullerene induction mechanism/Mesophase texture/π-electron-induced effect/Mesophase microbeads分类
化学化工引用本文复制引用
陈文胜,刘澜涛,王政,段淳枫,张型伟,马兆昆,陈晓红,宋怀河..富勒烯诱导体型中间相沥青形成中间相炭微球[J].新型炭材料（中英文）,2024,39(4):645-654,10.基金项目
This work is supported by the National Natural Science Foundation of China(U21A2061). 国家自然科学基金(U21A2061). （U21A2061）
