Table 4.
Electrical and potentiometric parameters compared for GCD/SC/K+-ISM electrodes with various materials applied as solid-contact (SC) layers: TCNQ—Tetracyanoquinodimethane; GR—Graphene; PEDOT(CNT)—Poly (3,4-ethylenedioxythiophene)–Carbon Nanotubes; MoO2—Molybdenum Dioxide; CIM—Colloid-Imprinted Mesoporous Carbon; CB-GR-FP—Carbon Black–Graphene–Fluorinated acrylic copolymer.
| Electrode | Capacitance Value [μF] | Potential Drift [μV/s] | Linear Range [M] | Slope [mV/dec] | Reference |
|---|---|---|---|---|---|
| GCD/TCNQ/K+-ISM | 132 | 12 | 10−1–10−6.5 | 58.68 | [24] |
| GCD/GR/K+-ISM | 91 | 12 | 10−1–10−4.5 | 59.2 | [25] |
| GCD/PEDOT(CNT)/K+-ISM | 83 | 12 | 10−1–10−6 | 57.7 | [26] |
| GCD/MoO2/K+-ISM | 86 | 11.67 | 10−3–10−5 | 55.0 | [27] |
| GCD/CIM/K+-ISM | 1000 | 1 | 10−1–10−5.2 | 59.5 | [28] |
| GCD/CB-GR-FP/K+-ISM | 1471 | 0.68 | 10−1–10−6.5 | 59.10 | [29] |
| GCD/RuO2/K+-ISM | 188 | 533 | 10−1–10−5.5 | 59.44 | this work |
| GCD/RuO2●xH2O/K+-ISM | 1233 | 81 | 10−1–10−6 | 57.37 | this work |