Table 1: Performance comparison of the H2O2 sensors based on different-materials-modified electrodes.

Material Linear range (μM) Detection limit (nM) Sensitivity Reference MWCNT/Ag nanohybrids 50~17000 500 1.42 μA mM−1 [24] Nano-TiO2/DNA/thionin nanocomposite 50~22300 50000 — [15] Nafion and copper oxide nanoparticles 0.15~9000 60 — [10] CuO flower-like nanomaterials 42.5~4000 167 88.4 μA mM−1 cm−1 [22] CuO shuttlelike nanocrystals 0.02~250 7 227μA mM−1 This study