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. 2019 Aug 27;12(17):2754. doi: 10.3390/ma12172754

Figure 9.

Figure 9

EIS plots of (a) inhibitor doped double-layer sol-gel film and (b) undoped single-layer sol–gel film during immersion in 0.5 NaCl. Adapted from [64], with permission from © 2007 Elsevier.