Table 2 g-factors, integrated area of EPR signal, and the accurate defect concentration of carbon-based starting materials and B4C samples synthesized via various conditions.
From: Defect-induced B4C electrodes for high energy density supercapacitor devices
g-factor (isotropic) | Integrated area | Defect concentration (spins/g) | |
---|---|---|---|
Active C | 2.0031 | 1.23 × 102 | 2.15 × 1017 |
Graphite | 2.0098 | 2.82 × 102 | 4.93 × 1017 |
S1@G3 | 2.0023 | 4.81 × 103 | 8.41 × 1018 |
S2@G6 | 2.0031 | 2.52 × 103 | 4.41 × 1018 |
S3@A3 | 2.0025 | 5.36 × 101 | 9.38 × 1016 |
S4@A6 | 2.0027 | 4 × 103 | 7 × 1018 |