A novel purification method of activated carbon-supported carbon nanotubes using a mixture of Ca(OH)

Autor: Yongjie, Hu, Linlin, Zhang, Qixun, Guo, Zhifeng, Zheng, Yunquan, Liu, Yueyuan, Ye, Shuirong, Li, Xingyong, Jia, Duo, Wang
Rok vydání: 2020
Zdroj: RSC advances. 11(2)
ISSN: 2046-2069
Popis: Transition metals (Fe, Co, Ni) supported on activated carbons with different pore diameters (2 nm, 10 nm, 50 nm) to synthesize carbon nanotubes (CNTS) are first investigated in this study. Through several characteristic analyses, Ni supported on 50 nm activated carbon is verified to be the most efficient catalyst among the samples for CNT growth. The optimum conditions for CNT growth are at a growth temperature of 750 °C with a reaction time of 45 min. Furthermore, a novel purification method for CNTs is proposed, in which KOH and Ca(OH)
Databáze: OpenAIRE