Table 2 Fitting results for the EIS data acquired from mild-steel (MS), epoxy coated over MS, graphene-epoxy coated over MS and HEAs-np Gr composite-epoxy coated over MS substrate in 3.5% NaCl solution.
From: First Report on High Entropy Alloy Nanoparticle Decorated Graphene
Sample | Rs (Ω cm2) | Qcoat (μF cm−2) | n (0 < n < 1) | Rcoat (Ω cm2) | Qdl (F cm−2) | n (0 < n < 1) | Rct (Ω cm2) | χ2 square value |
|---|---|---|---|---|---|---|---|---|
Mid steel | 1.4 | 3014 | 0.93 | 92.16 | 225.9 | 0.8 | 811.8 | 3.07 × 10−3 |
Epoxy coating | 7.5 | 539.7 | 0.8 | 94 | 107 | 0.8 | 1245 | 1.36 × 10−3 |
Gr + epoxy coating | 28.6 | 0.738 | 0.86 | 2444 | 16.2 | 0.76 | 3399 | 2.21 × 10−3 |
Gr:M (80:20) + epoxy coating | 35.2 | 0.017 | 0.9 | 3914 | 0.74 | 0.8 | 15736 | 1.1 × 10−3 |
