Table 1.
Comparison of AAO membrane detachment methods and results.
| Ref. | Method | Al Purity | Anodization Step/Solution | AAO Fabrication Time (h) | Detachment Time | Photographs of Complete Membrane | Repetition of AAO Membrane |
|---|---|---|---|---|---|---|---|
| [22] (Commrcial membrane) |
Chemical etching method | 99.999% | NA | NA | NA | Complete | NA |
| [18] | Reverse-bias voltage method | 99.999% | two-step/Sulfuric acid | 25 | 20 min | Complete | 6 times |
| [31] | Reverse-bias voltage method | 99.999% | two-step/ Sulfuric acid |
44 | 13 min | Local * | NA |
| [32] | Reverse-bias voltage method | 99.999% | two-step/oxalic acid | 8–32 | 30–90 s | Local * | 5 times |
| [33] | Pulse voltage method | 99.999% | two-step/oxalic acid | 28 | 3 s (1 cycle) |
Local * | NA |
| [34] | Pulse voltage method | 99.99% | two-step/oxalic acid | 5 | 3 s (1 cycle) |
Local * | NA |
| [35] | Pulse voltage method | 99.999% | two-step/oxalic acid | 5 | 3–60 s (1–10 cycle) |
Local * | NA |
| [39] | Pulse voltage method | 99.999% | two-step/sulfuric acid | 12–20 | 3–60 s (1–10 cycle) |
Partial | NA |
| [36] | Two-layer anodization method | 99.999% | three-step/sulfuric acid | 13.5 | 15 min | Complete | 10 times |
| [37] | Two-layer anodization method | 99.999% | three-step/oxalic acid | 27 | 75 min | Complete | 4 times |
| Ours | Short one-time potentiostatic method | Al 1050 alloy (~99.5%) | one-step/oxalic acid | 3 | 20 s | Complete | 5 times |
* SEM images only.