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在碳纳米管存在下合成了直径2～10nm的钯纳米粒子,利用全氟磺酸盐聚合物Nafion溶解碳纳米管/钯纳米粒子复合物,构建了检测H2O2的电化学传感平台。循环伏安法证实所合成的钯纳米粒子在复合材料中保持了其电化学活性,该纳米复合物对H2O2具有催化能力。将葡萄糖氧化酶固定在碳纳米管/钯纳米粒子复合物修饰的玻碳电极上,制备了葡萄糖生物传感器,响应时间和检测限(S/N=3)分别为6s和3.0×10-5 mol/L。
In the presence of carbon nanotubes, palladium nanoparticles with a diameter of 2 ~ 10 nm were synthesized. The electrochemical sensing platform for the detection of H2O2 was constructed by dissolving carbon nanotube / palladium nanoparticle complexes with Nafion perfluorosulfonate polymer. Cyclic voltammetry confirmed that the synthesized palladium nanoparticles retained their electrochemical activity in the composite material, and the nanocomposite had the catalytic ability to H2O2. The glucose biosensor was prepared by immobilizing glucose oxidase on carbon nanotubes / palladium nanoparticle complex modified glassy carbon electrode. The response time and detection limit (S / N = 3) were 6s and 3.0 × 10-5 mol / L.