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Table 1 Comparison of linear range and detection limit of H2O2 published in literature [913, 1518, 20, 4152]

From: Detection of pH and Enzyme-Free H2O2 Sensing Mechanism by Using GdO x Membrane in Electrolyte-Insulator-Semiconductor Structure

Sensing materials pH value Linear range (μM) Detection limit (μM)
MoS2 NP [15] 7.4 5–100 0.002
WS2 NS [10] 7.4 0.002
Pt-Pd-Fe3O4 [16] 7.4 0.02–0.1, 2–14,000 0.005
Pt-Pd/rGO [11] 7.0 0.1–37.6 0.01
Au NP [12] 7.0 2–5000 0.01
Pt NP [9] 7.2 3–300 0.03
rGO [41] 7.0 0.05–1500 0.05
Au/C/Pt [42] 7.0 9.0–1860, 1860–7110 0.13
Au NP [43] 6.8 3–605 0.18
Ag NP [44] 7.5 100–10,000 0.88
GS/CeO2-ZnO NP [45] 7.0 2–20,000 1.1
Pt-Pd and Pt-Ir [46] 7.4 2.5–125 1.2
Pt NP [47] 6.9 5–2000 1.23
CeO2 NP/N-rGO [48] 7.0 1.8–920.8 1.3
CuO [13] 7.0 10–13,180 1.6
Ag NPs/PPy/Fe3O4 [49] 7.2 5–11,500 1.7
Pd NP [17] 7.4 2–1300 2
Co3O4 NW [18] 7.4 15–675 2.4
Carbon dots [20] 7.4 3–300 3
Se/Pt [50] 7.0 10–15,000 3.1
Ag NP [51] 7.0 25–500, 500–5500 10
Co-Mn [52] 7.2 100–25,000 15
GdO x in EIS structure (this work) 7.0 1–200 1
  1. NP nanoparticle, NS nanosheet, rGO reduced graphene oxide, GS graphene sheet, NW nanowire