硅酸盐学报2017，Vol.45Issue(3)：416-421,6.DOI:10.14062/j.issn.0454-5648.2017.03.14
孔结构对热解酚醛树脂制备碳纳米管的影响
Effect of Pore Structure on Preparation of Carbon Nanotubesvia Pyrolysis of Phenolic Resin
摘要
Abstract
To clarify the yield change of carbon nanotubes (CNTs) prepared by a phenolic resin catalytic pyrolysis method, CNTs were synthesizedvia catalytic pyrolysis with two different kinds of phenolic resins and ferric nitrate as a catalyst precursor in Ar atomosphere at 1000℃ for 3h. The effect of pore structure on the formation of CNTs was investigated. The phase and microstructure of the final products were characterized by X-ray diffraction, field emission-scanning electron microscopy and transmission electron microscopy. The results indicate that CNTs with 40–100 nm in diameter and several hundred micronmeters in length are only prepared in the pores with the size of 50–1000μm formed during the curing process rather than other sites. Compared to the small pores without CNTs formation, large pores can offer sufficient carbon source and space for CNTs growth due to the appearance of CNTs only in large pores of pyrolyzed phenolic resin. The yield of CNTs depends on the pore size in the cured phenolic resin. The yield of CNTs can be improved when phenolic resin with large pores is used in the cured precursor as a carbon source.关键词
碳纳米管/孔结构/酚醛树脂/催化剂Key words
carbon nanotube/pore structure/phenolic resin/catalysts分类
化学工程引用本文复制引用
王军凯,张海军,梁峰,谭操,李赛赛,宋健波,韩磊,黄珍霞..孔结构对热解酚醛树脂制备碳纳米管的影响[J].硅酸盐学报,2017,45(3):416-421,6.基金项目
国家自然科学基金面上项目(51272188,51472184,51472185) （51272188,51472184,51472185）
湖北省自然科学基金项目(2013CFA086) （2013CFA086）
国家"973"计划前期研究专项(2014CB660802),湖北省科技支撑计划对外科技合作项目(2013BHE002). （2014CB660802）
