Mater Sci Eng C Mater Biol Appl. 2012 Aug 1;32(6):1682-9. doi: 10.1016/j.msec.2012.04.066. Epub 2012 Apr 28.
This paper describes the development and utilization of a new nanocomposite consisting of Cu(OH)2 nanoparticles, hydrophobic ionic liquid 1-ethyl-3-methylimidazolium hexafluorophosphate (EMIMPF6) and multiwalled carbon nanotubes for glassy carbon electrode modification. The nanocomposite was characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM) along with energy-dispersive X-ray spectroscopy (EDX). The modified electrode was used for electrochemical characterization of diclofenac. Using differential pulse voltammetry, the prepared sensor showed good sensitivity and selectivity with low overpotential for the determination of diclofenac in the range from 0.18 to 119 μM, with a detection limit of 0.04 μM. Electrochemical studies suggested that the MWCNTs/Cu(OH)2 nanoparticles/IL nanocomposite modified electrode provided a synergistic augmentation on the voltammetric behavior of electrochemical oxidation of diclofenac, which was indicated by the improvement of anodic peak current.
本文描述了一种由 Cu(OH)2 纳米粒子、疏水离子液体 1-乙基-3-甲基咪唑六氟磷酸盐 (EMIMPF6) 和多壁碳纳米管组成的新型纳米复合材料的开发和利用，用于修饰玻碳电极。通过透射电子显微镜 (TEM)、扫描电子显微镜 (SEM) 以及能量色散 X 射线能谱 (EDX) 对纳米复合材料进行了表征。修饰电极用于对双氯芬酸进行电化学表征。使用差分脉冲伏安法，制备的传感器在 0.18 至 119 μM 的范围内对双氯芬酸表现出良好的灵敏度和选择性，检测限为 0.04 μM。电化学研究表明，MWCNTs/Cu(OH)2 纳米粒子/IL 纳米复合材料修饰电极对双氯芬酸电化学氧化的伏安行为提供了协同增强作用，这表现在阳极峰电流的提高上。
