ZnAlCe-NO2 水滑石@硅烷涂层的氯离子捕获和响应缓蚀行为
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谭敬莎, 郭艺超, 陈俊霖, 盖文峰, 孟国哲
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Chloride Ion Capture and Responsive Corrosion Inhibition Behavior of ZnAlCe-NO2 Hydrotalcite @ Silane Coating
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TAN Jingsha, GUO Yichao, CHEN Junlin, GAI Wenfeng, MENG Guozhe
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表1 Q235碳钢在NaCl混合溶液中浸泡不同时间的EIS拟合参数
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Table 1 Fitting parameters from EIS spectra of Q235 carbon steel soaked in NaCl mixed solution for different time
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| Sample | Time | Rs / Ω·cm2 | CPEf / Y0 (Ω-1·cm-2·S n ) | n | Rf / Ω·cm2 | Qdl / Y0 (Ω-1·cm-2·S n ) | n | Rct / Ω·cm2 | Rw/ Ω·cm2 |
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| Carbon steel | 1 h | 110.5 | - | - | - | 4.039 × 10-4 | 0.78 | 1.876 × 103 | 5.954 × 10-3 | | ZnAlCe-NO2 LDH | 1 h | 112.9 | - | - | - | 2.006 × 10-4 | 0.82 | 1.468 × 104 | 8.688 × 10-3 | | 6 h | 111.2 | 1.871 × 10-4 | 0.83 | 125.3 | 8.09 × 10-5 | 0.83 | 1.162 × 104 | 1.133 × 10-3 | | 12 h | 101.1 | 2.234 × 10-4 | 0.81 | 134.8 | 7.022 × 10-5 | 0.90 | 1.793 × 104 | 5.202 × 10-3 | | 24 h | 90.6 | 2.861 × 10-4 | 0.79 | 120.1 | 6.857 × 10-5 | 0.98 | 1.915 × 104 | 5.750 × 10-3 | | 48 h | 111.2 | 2.718 × 10-4 | 0.80 | 78.08 | 1.470 × 10-4 | 0.94 | 1.410 × 104 | 1.600 × 10-3 |
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