Table 1. Comparative Sensing Performance of the Cu2O/M/AC Composite with the Other Sensing Elements Reported in the Literature*.
| electrode material | linear range (mM) | detection limit (μM) | sensitivity (μA cm–2 mM–1) | reference |
|---|---|---|---|---|
| Cu/Cu2 O nanoclusters | 0.01–0.690 | 5 | 63.8 | (49) |
| 1.190–3.69 | 22.6 | |||
| Co3O4/CuO nanorod array | 0.001–0.5 | 0.38 | 5405 | (50) |
| Cu2O/Cu/CC | 0.001–1.5 | 0.06 | 6952 | (51) |
| Cu2O MSs/S-MWCNT | 0.00495–7 | 1.46 | 581.89 | (52) |
| CuCNA/CF | 0.2–1900 | 0.04 | 3826 | (53) |
| GOx-Pt-PAA-SPCE | 0.02–2.3 | 7.6 | 42.7 | (54) |
| GOx-AC-NiFe2O4/CPE | 2–10 | 0.001 | 32.01 | (55) |
| AuNi@AC | 0–1.7 | 0.41 | 1955 | (56) |
| GrGO/AC | 0.002–10 | 2 | 61.06 | (57) |
| CuO/NiO/ACF | 0.00025–5 | 0.146 | 247 | (58) |
| Ti2C-TiO2 | 0.0001–0.2 | 0.12 | 75.32 | (59) |
| Ti3C2-aUV | 0.1–10 | 12.1 | 93.75 | (60) |
| Cu2O/M/AC | 0.004–13.3 | 1.96 | 430.3 | This work |
| 15.3–28.4 | 240.5 |
*
AC-activated carbon, SPCE-screen printed carbon electrode, ACF- Activated carbon nanofiber, CPE-Carbon Paste electrode.