期刊
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
卷 824, 期 -, 页码 147-152出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jelechem.2018.07.048
关键词
ZIF-8; Polyaniline; Nafion; Electrochemical sensor; Dopamine
资金
- National Natural Science Foundation of China [21645007, 21475071]
- Taishan Scholar Program of Shandong Province [ts201511027]
- Natural Science Foundation of Shandong [ZR2016BM21]
A novel Nafion/polyaniline/Zeolitic Imidazolate Framework-8 nanocomposite (Nafion/PANI/ZIF-8) has been fabricated on the surface of glassy carbon electrode (GCE) for the electrochemical determination of dopamine (DA). In this sensor, ZIF-8 provides large surface area and excellent electrocatalytic activity while PANI exhibits great electric conductivity. Surface morphology and structure of the modified electrode were characterized by scanning electron microscope (SEM) and X-ray diffraction (XRD). The eletrocatalytic properties of the modified electrode were investigated by cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The Nafion/PANI/ZIF-8 modified electrode displayed a high catalytic performance towards DA oxidation in PBS, which can be attributed to the synergistic effects of PANI and ZIF-8. Under the optimized conditions, the linear range was from 1.0 x 10(-7) to 1.0 x 10(-4) mol L-1 and the limit of detection was 1.2 x 10(-8) mol L-1. In addition, the developed sensor showed great selectivity, high reproducibility, excellent stability and applicability in real samples analysis.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据