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通过对碳纳米管氧化,合成了L-半胱氨酸修饰碳纳米管。运用红外、差热-热重分析、透射电镜对该复合物进行了表征。借助循环伏安法研究了其电化学性质。结果表明,碳纳米管的掺入极大地提高了L-半胱氨酸在金电极表面的电子传输速率和电流响应,同时也有利于L-半胱氨酸的电氧化,对L-半胱氨酸的氧化具有催化作用。
By oxidation of carbon nanotubes, L-cysteine-modified carbon nanotubes were synthesized. The complex was characterized by means of IR, DTA-TG and TEM. The electrochemical properties were studied by cyclic voltammetry. The results show that the incorporation of carbon nanotubes greatly enhances the electron transport rate and current response of L-cysteine on the gold electrode surface, as well as the electrooxidation of L-cysteine, The oxidation of amino acids has a catalytic effect.