Fig. 7: Electrochemical sensing of H2O2 in 0.1 M PBS (pH 7). | npj 2D Materials and Applications

Fig. 7: Electrochemical sensing of H2O2 in 0.1 M PBS (pH 7).

From: WSe2 nanoflowers grown on Ti3C2Cl2 MXene for energy applications and sensing

Fig. 7

a–d CVs of plain GC, Ti3C2Cl2 MXene/GC, WSe2/GC, and w-WSe2/Ti3C2Cl2/GC in the absence and in the presence of 5 mM H2O2 at a scan rate of 25 mV s−1. Amperometric curves of w-WSe2/Ti3C2Cl2/GC: e at different polarization potentials for H2O2 concentration ranging from 10 to 100 μM, along with the respective calibration plots, f at −0.3 V for H2O2 concentration ranging from 1 to 88 μM along with the corresponding calibration plot, g at −0.3 V with similarly prepared sensors over three consecutive additions of 5 μM H2O2 along with current response shown for each addition.

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