Sensitive detection of H2O2 based on a MWCNTs/Ti3C2 nanocomposite-modified electrode

Abstract

In this work, MWCNTs/Ti₃C₂ nanocomposites were synthesized by a convenient method and characterized in terms of structure and properties by SEM, FT-IR, XPS and electrochemical methods. The electrochemical sensor developed with MWCNTs/Ti₃C₂ nanocomposites exhibits good electrochemical properties. The sensor demonstrates excellent electrocatalytic performance for H₂O₂ and was used to detect the concentration of H₂O₂. The linear range of the sensor was 0.05–1080 μM, with a detection limit of 0.017 μM (S/N = 3). The sensor shows strong anti-interference performance, stability and reproducibility and exhibits good performance in real sample detection.