Noncovalent nanohybrid of ferrocene with single-walled carbon nanotubes and its enhanced electrochemical property

The nanoscale hybridization adduct of ferrocene (Fc) and single-walled carbon nanotubes (SWNTs) was prepared and it shows high stability and greatly enhanced sensitivity toward hydrogen peroxide reduction. The electrochemical and hydrolysis results suggest that the strong π–π stacking interaction between Fc and SWNTs play a critical role for its enhanced electrochemical catalytic property. The combined advantages from SWNTs and Fc and the cooperative effect due to this π–π stacking could make this adduct an excellent choice for ultrasensitive electrochemical detections.