Table 1 XRD and electrochemical results of layered KxV2O5 and V2O5 supported by nanoporous Au current microcollectors
Materials | Interlayer space (Å) | Capacity (mAh cm−3) | RI (Ω) | RCT (Ω) | RIR (Ω) | ZW (S s1/2) |
|---|---|---|---|---|---|---|
a-K0.25V2O5 | 10.96 | 370 | 8.99 | 1.19 | 10.6 | 892.9 |
c-K0.25V2O5 | 4.42 | 500 | 10.79 | 2.19 | 16.1 | 741.9 |
ac-K0.25V2O5 | 10.83 | 717 | 5.53 | 0.28 | 6.6 | 3358.7 |
ac-K0.2V2O5 | 10.32 | 554 | 5.66 | 0.35 | 7.3 | 2198.2 |
ac-K0.1V2O5 | 5.33 | 464 | 5.77 | 0.61 | 7.8 | 1949.1 |
ac-V2O5 | 4.36 | 242 | 19.97 | 0.94 | 21.8 | 1194.9 |
