In the procedure, carbon nanotubes were oxidized by nitric acid and then neutralized with NaOH to create carboxyl surface groups which were used to adsorb Ni(superscript 2+) ions, thereafter the adsorbed Ni(superscript 2+) ions were chemically reduced int
In the procedure, carbon nanotubes were oxidized by nitric acid and then neutralized with NaOH to create carboxyl surface groups which were used to adsorb Ni(superscript 2+) ions, thereafter the adsorbed Ni(superscript 2+) ions were chemically reduced int
碳纳米管经硝酸氧化和碱中和后表面生成羧基，利用羧基吸附镍离子，之后吸附的镍离子被化学还原为镍的纳米微粒并成为化学镀镍的催化活性中心。