Hydrogen peroxide monitoring in Fenton reaction by using a ruthenium oxide hexacyanoferrate/multiwalled carbon nanotubes modified electrode

► The reduction of H2O2 at RuOHCF/MWCNTs/GC electrode is facilitated and occurs at 0.0 V. ► The modified electrode has enhanced analytical performance towards H2O2 detection. ► The sensor was used for hydrogen peroxide monitoring during Fenton reactions.