通过以碱(NaOH)为分散剂进行预处理增大化学反应活性,再以高温加热除去无定型炭等非高度石墨化物质,最后运用混酸(3∶1浓硫酸和浓硝酸)进一步去除无定型炭及碳纳米管制备过程中的金属催化剂和金属氧化物,并在纯化的同时引入羧基和羟基等官能团,使修饰后的碳纳米管稳定性、分散性大大加强。 By alkali (NaOH) as a pre-treatment to increase the chemical reaction activity, and then heated at high temperature to remove amorphous carbon and other non-highly graphitized material, and finally the use of mixed acid (3: 1 concentrated sulfuric acid and concentrated nitric acid) to further remove amorphous Carbon and carbon nanotubes in the preparation process of metal catalysts and metal oxides, and in the purification of the introduction of carboxyl and hydroxyl and other functional groups, the modified carbon nanotubes greatly enhance the stability, dispersion.