Preparation of Bimetallic Au-Pd/MWCNTs Electrode for Detection of Dopamine

In this study, functionalized bimetallic Au-Pd on multi-walled carbon nanotubes (AuPd/MWCNT) are prepared and their application as electrochemical sensor materials for dopamine detection is explored. Furthermore, the as-prepared composite identified using X-ray diffraction (XRD), scanning electron microscope (SEM), transmission (TEM), photoelectron spectrometer (XPS). addition, experimental results show that AuPd/MWCNT displayed excellent sensing properties to dopamine. Especially, 1% Pd-5% Au/MWCNT showed a wide range (0.98–200 μM) low limit of 0.058 μM The also such repeatability, reproducibility, stability, which can be ascribed large specific surface area synergistic effect nanoparticles. Therefore, have good prospects in field detection.