INHIBITION PROPERTY AND ADSORPTION BEHAVIOR OF IMIDAZOLE AND 2 PHENYL 2 IMIDAZOLINE ON Cu IN H 2 SO 4 SOLUTION
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- Κέφαλος Λαγός
- 6 χρόνια πριν
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1 Ý 49 Ý 8 Vol.49 No Ý ACTA METALLURGICA SINICA Aug pp Í H 2 SO 4 Ë º 2 ¾ 2 Cu ¼Ç ºÂµÅ Ð Ù Ñ Û Ý Ú (Ñ ÆØ Ñ Á, ÑÐ ) Ï Ê ¹Ò ß 2 2 Cu 5% H 2SO 4 ÆÊ ÕÝÙÝ Æ½Ú Ý Ù. ¹ «, 2 Á Cu ¾ ÔÕÝÙ ¹, 2 2 ÕÝÙ ß. µö, ³ ¹µÙ ³ÕĐ E a, ƽ ÂÕ Gibbs ¼ G m ƽ H m 2 Á Cu Õƽ Ý. ¹ «, 2 2 Cu Õƽ Â Ä Â, ƽ, ² Langmuir ƽ٠Þ. ¼, 2 2 Þ Cu ƽ ¹ÄÕ, ú Cu ÕÝÙ., 2 2, Cu, ƽ Ý, ÝÙ ² ¹ O646.6 ÁÄ A Á ¹ (2013) INHIBITION PROPERTY AND ADSORPTION BEHAVIOR OF IMIDAZOLE AND 2 PHENYL 2 IMIDAZOLINE ON Cu IN H 2 SO 4 SOLUTION HE Xinkuai, HOU Bailong, JIANG Yumei, LI Chen, WU Luye School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou Correspondent: WU Luye, lecturer, Tel: (0731) , h-xk@163.com Supported by Natural Science Foundation of Hunan Province (No.13JJ3107) Manuscript received , in revised form ABSTRACT Mass loss and electrochemical methods were carried out to evaluate the inhibition property and adsorption behavior of imidazole and 2 Phenyl 2 imidazoline for Cu in 5% H 2 SO 4 solution. The results showed that the two compounds have obvious corrosion inhibition for Cu in H 2 SO 4 solution, and the inhibition efficiency of 2 Phenyl 2 imidazoline was higher than that of imidazole. Meanwhile, the adsorption property was estimated using the activation energy E a of the corrosion reaction, the standard adsorption Gibbs free energy change G m and enthalpy change H m for the imidazole and 2 phenyl 2 imidazoline, respectively. It revealed that the adsorption processes were exothermic reactions on Cu by a monolayer chemisorption based mechanism, and the adsorption of the inhibitors followed the Langmuir adsorption isotherm. In addition, the differences of the monolayer adsorption structures between the imidazole and 2 Phenyl 2 imidazoline molecules on the Cu surface were investigated, and their inhibition mechanisms for Cu were analyzed. KEY WORDS imidazole, 2 Phenyl 2 imidazoline, Cu, adsorption property, inhibition mechanism Cu» Ö Å ÚÂ Þ Æ Ì Ü º Ò ßØ ÚÖ. ݺ Ã, Cu ÖÕ ± Ð ÃƵ Î Û., * Ò Ð ÂÈ ÜÕ 13JJ3107 ÐÆ È¹ : , Ðß È¹ : È ¾ : ÔÎ,, 1977, µ, ¹Ð DOI: /SP.J º HCl H 2 SO 4 Ú Þ Ê ÛÌ. ÃÆ, Ê Đº ÖÞÚ, Å Ö Ú., Cu ÚÖÞÚ Ó Æ ÚØ Â Ø Ú [1 3]. [4,5] Æ NaCl Ë ÅÆ Æ 1 ÆÅ Cu ÖÞÚ,»ÞÚ 47.7%, 73.2%, 90.0%, ± ÅÆ Þ Å Cu Ö Ú, Æ 1- ÆÖ Ã, Ï. Á Ú [6] ÇÐ Ú [7] Å Þ 3 É
2 1018 Ý 49 Æ Ø Â (BIT, BIOHT, BIMMT) Æ Â (POTAS, PDTAS) Å Cu ÖÞÚ,»ÞÚ À 80%. É ÆØ ÂÖ À² º, Û. Ek Lisac Ú [8] Å H 2 SO 4 ÅÆÅ Cu ÖÞÚÞ,»ÞÚ 65%, ÊÞÚ ÖÅ. Ê» ÅÆ Â (2 2 ÅÆ ) H 2 SO 4 Å Cu ÖÞÚÞ Ö Ò. ÞÚ Ö ³ ± ÖÂ Ø Ç¾ ÚÖ. «Æ«, Ǿ º Ç ¾ ºÅ, ÞÚ., Ǿ ºÖ Þ, ɳ Ú Ã Ö Ø E a, Ǿ à Gibbs н G m Ǿ (Å) H m «Ö Û. Î [9,10] Ú³ Ê«Ì, ÓÑ Æ Æ Æ Cu ± ÖǾ H m , kj/mol, Å 40 kj/mol Ø Ç¾ [11],, ǻǾÀ Ø Ç¾. Æ Ebenso Ú [12] Á Ú [6] º E a Û, Ç E a <80 kj/mol À  Ǿ, 80 kj/mol À Ø Ç¾. Ó ÆÞ Ö, [6] ³ ÓÈ Cu 3 É Æ Ø Â (BIT, BIOHT, BIMMT) Ì Ö Ú Ã Ö E a 52, kj/mol, Ö E a À 80 kj/mol, Ç BIT, BIOHT BIMMT Cu ± ÖǾ ºÀ  Ǿ., Û Ê 3 Ø Â Cu ± ÖǾ H m,» 37.94, kj/mol. H m Ú, ÉÏ BIT  Ǿ, Æ BIOHT BIMMT Ø Ç¾. ½, [13] Å, Õ ¾ Al ± ÖǾ  Ǿ ÓÖ Ç¾, Ú Ã E a kj/mol; [14] Ç, H 2 SO 4 Ú, Ô ± ÖǾ Ø Ç¾, Ú Ã E a kj/mol., Ø E a <80 kj/mol À  Ǿ, Æ E a >80 kj/mol À Ø Ç¾ Ú. ÃÆ, ºÇ¾«½ н Þ,» Ú. G m Ǿ Î Ek Lisac Ú [8] Ç, G m kj/mol Â Ç ¾, G m 100 kj/mol Ø Ç¾, ³ Ó ÑÅÆ Cu ± Ö G m kj/mol, Ç Ã Â Ç¾. Æ [15 19] Ç G m 20 kj/mol  Ǿ, G m 40 kj/mol Ø Ç¾, 2 É Ö Â Ø Ç¾. Î De Souza [15] ³, ÓÑÁ Cu ± ÖǾ G m 31.1 kj/mol, Ç Ã Â Ç¾Ø Ç¾; Ahamad [16] Dahmani [17] º G m ÅÇ¾Û Û, È HCl г ÞÚ C38 ± Ö G m kj/mol, Ç Ø Ç¾. Å ÄÉÏ, º E a, G m, H m 3  «Ö «ÅÞÚ ÖǾ Þ Û, à Ö, в. Î ºÊ 3  «Đ ÞÚ ± ÖǾÛ, Đ ÆÞ, ±ÓÈ ÆÉ ÇÖºĐ., ÅÆ 2 2 ÅÆ ÞÚ, H 2 SO 4 Ú, ºÓ Ø Å»Å Cu ÖÞÚÞ, º E a, G m H m ÅÅÆ 2 2 ÅÆ Cu ± ÖǾ Þ Û, Ǿ Þ, ¾ ÅÆ 2 2 ÅÆ Cu ± ÖǾºÅ»ÞÚ. 1 ɳ± Ü Ò Ý Cu, Ï 99.95%, Ó Ü Cu ³Ä 11.0 mm 5.0 mm 0.2 mm, Ø ºÖ Cu 1.5 mm. ÅÆÏ 99.0%, 2 2 ÅÆ Ï 98.0%, H 2 SO 4 Ï 98.0%, º À ß. Ó ± Cu ³ º 4 µm Æ Ë, ß À Î Ê, Ã Đ Â º. Þ Ú 5% H 2 SO 4 Ë, Ü ³ 15 min N 2 É Ë Ö O 2. (25±1) ± Cu ³ È Ú 72 h, È º ± É Ú Â, Ï º ß À Î Ê, ÌË Â Â Ê Ö ³,»ÞÚ [6]. º CHI660B Ö Ø Å Û Ø, Cu, Ö Pt, 1 cm 2 cm, Â. Ü Cu Ϻ Æ, ß À Î Ê, Ã Đ Â º. Ü Å» ³ N 2 É Ë Ö O 2, Ø (25±1). Đ Tafel, ű Ð Ú E corr ±150 mv, Å 1 mv/s. Ø Ä Ö ÚÅ Õ ± 5 mv, 0.05 Hz 100 khz, Đ ÂÝ. Tafel, º½» [20] Ó» ÅÆ 2 2 ÅÆ Ú Ö Ú Ú, ûÞÚ [21]. º Ø Ä Zview Å Nyquist ¹ «Û, ÓÑÚ Ý ÖÍÞ ½ Í, ûÞÚ [22].
3 Ý 8 ÓÍØ : H 2SO 4 É 2 2 Cu ÔÜØÜ Å¼Ù Ì 2.1 ½ È ÐÅ ± 1 5% H 2 SO 4 Ë» ÅÆ 2 2 ÅÆ Å Cu ³ÖÞ Ú. ½±ÉÏ, ÅÆ ÖÄ, ÞÚ ÏÄ, mol/l, ÞÚ Ñ 68.6%, Ê Ek-Lisac Ú [8] Ö º, ÞÚ. ÃÆ, 2 2 ÅÆ ÖÄ,»ÞÚ Ä, Ñ mol/l, Ä», ÞÚ Ä». ± 1 ÛÉ ÃÈ, 2 2 ÅÆ Ö mol/l,»þú À ÅÆ ÖÞÚ,» º ÀÛ mol/l., 2 2 ÅÆ Å Cu ÖÞÚ» ÅÆ ÕÒß ¹ 1 5% H 2 SO 4 Ë,» ÅÆ 2 2 ÅÆ Đ Ö Ø, º½» ¹ 1 Ú Å Ö Ð Ú Ú Ú ÞÚ,»º ± 2. ½¹ 1 ± 2 ÉÏ, Ë Ë, 2 2 ÅÆ ÅÆ 2 Ø Â,» Ú» à ÖÎ, Æ Ú Ú., ÅÆ Ì, Ú Ú» Ú Ö Ä Æ, Æ mol/l, Ú Ú Æ Ä ; 2 2 ÅÆ Ì, Ú Ú» Ú Ö Ä Æ, Ê Ó Öº. ½¹ 1 ÛÉ ÃÈ, Í Æ Ë» Ã, Ë Ë, ÅÆ 2 2 ÅÆ Å Ö Ú Ú À, ± ÅÆ 2 2 ÅÆ Å Æ Ã Ö º. ± Ø Ã, Å ÅÆ Ì, Û 0.14 V, ÅÆű Ø À º; ÆÅ 2 2 ÅÆ Ì, 2 2 ÅÆ Ö mol/l,»åí ± Ø Ã À º., ÅÆ 2 1 Ô ¼ «2 2 ««Cu À 5% H 2 SO 4 Ì ßÛ Ð Table 1 Inhibition efficiency η for Cu in 5% H 2 SO 4 solution with addition of various concentrations of imidazole and 2 Phenyl 2 imidazoline by mass loss method Material Concentration, mol/l Mass loss, mg η, % Imidazole Blank Phenyl 2 imidazoline Blank E / V (a) : Blank 1: mol/l : mol/l 3: mol/l 3 4: mol/l 5: mol/l lg(i, A cm 2 ) ºµ 2 2 Cu ß 5% H 2 SO 4 Ê Õ E / V (b) 0: Blank 1: mol/l 2: mol/l 3: mol/l 4: mol/l 5: mol/l lg(i, A cm 2 ) Fig.1 Polarization curves for Cu in 5% H 2 SO 4 solution with various concentrations of imidazole (a) and 2 Phenyl 2 imidazoline (b) (E potential, I current density)
4 1020 Ý 49 2 ÆÙ ¼ «2 2 ««Cu À 5% H 2 SO 4 Ì ÛÐ ÐÛ ßÛ Ð Table 2 Free potential E corr, corrosion current density I corr and inhibition efficiency for Cu in 5% H 2 SO 4 solution with various concentrations of imidazole and 2 Phenyl 2 imidazoline by polarization curve method Material Concentration, mol/l E corr, V I corr, µa/cm 2 η, % Imidazole Blank Phenyl 2 imidazoline Blank ÅÆ Æ Ö ÓÖ ÖÞÚ Ò «Ø º Ø Ä Å Cu Ë mol/l ÅÆ mol/l 2 2 ÅÆ Ö 5% H 2 SO 4 Ë Ö ÚÛ,» Nyquist ¹Î¹ 2, Ú Ý ¹ 3. º Zview Å Nyquist ¹«Ö º ± 3. ½¹ 2 ÉÏ, Ä»ÍÃÍÄÓ, Cu Ö ÚÓ ½ ÍÞÌ. ½, Ë Ë ÅÆ 2 2 ÅÆ Ö H 2 SO 4 Ë, ÍÄÓ Ä, Ê» ± Cu 5% H 2 SO 4 Ë Ö ÍÞ R 1 Ä, Æ 2 2 ÅÆ ÖÞ Ú ÅÆÖ.», ÅÆ 2 2 ÅÆ -Z Im, k mol/l 2-Phenyl-2-imidazoline mol/l imidazole Blank Z Re, k 2 Cu ± mol/l mol/l 2 2 Õ 5% H 2 SO 4 Ê Õ Nyquist Fig.2 Nyquist plots for Cu in 5% H 2 SO 4 solution with addition of mol/l imidazole and mol/l 2 phenyl 2 imidazoline (Z Re real part of impedance, Z Im imaginative part of impedance) 3 Ê ¼ Ù ßÜ Fig.3 Equivalent circuit for interface between metal and corrosive medium (R 1 charge transfer resistance, R 2 solution resistance, C 1 capacitance of the electrical double layer) 3 Cu À µ mol/l «0.052 mol/l 2 2 «5% H 2 SO 4 Ì ÐÙ Å Table 3 Electrochemical impedance parameters for Cu in 5% H 2 SO 4 without and with addition of mol/l imidazole and mol/l 2 Phenyl 2 imidazoline Material R 1 C 1 η Ω cm 2 µf/cm 2 % Blank Imidazole Phenyl 2 imidazoline ßÖ, Ǿ Cu ± Ö H 2 O ƹ Cu ±, ƼÑÞÚ º. ½± 3 Ö «ÉÏ, ½ Í Û 2 Ø ÂÖ Æ.», H 2 O Ö «Ø ÂÖ «, Ǿ Cu Ö H 2 O Ø Â, ÁÀ½ Í, Ê Ó Ø º. Þ Đ 2 Ô 2 ÆÓ Å Å 2 Ø ÂÞÚÞ Öµ, 30, 40, Í, Cu
5 Ý 8 ÓÍØ : H 2SO 4 É 2 2 Cu ÔÜØÜ Å¼Ù ¼ Î Cu À µ mol/l «0.052mol/L 2 2 «5% H 2 SO 4 Ì ÆÙ Table 4 Polarization curve parameters for Cu in 5% H 2 SO 4 without and with addition of mol/l imidazole and mol/l 2 Phenyl 2 imidazoline obtained at different temperatures Temperature, Material E corr, V I corr, µa/cm 2 30 Blank Imidazole Phenyl 2 imidazoline Blank Imidazole Phenyl 2 imidazoline Blank Imidazole Phenyl 2 imidazoline Blank mol/l ÅÆ mol/l 2 2 ÅÆ Ö 5% H 2 SO 4 Ë Ö Ø, º½» Ó Ø Å Ö Ú Ú Ú,»º ± 4. Ú ÃÉà Arrhenius Ã,» Àß [23] ÎÍ: I corr = Aexp( E a /(R g T)) (1) ß, E a ± Ø, I corr ± Ú Ú, A ± ß, R g ½ «, T. ± ß Ð ÃÅ«, lni corr, 1/T ¹, º ι 4. ½¹ ÖÑ ( E a /R g ) ÉÓ Cu 5% H 2 SO 4 Ë Ú ÃÖ E a =24.56 kj/mol, ÅÆ 2 2 ÅÆ, E a ÄÑ kj/mol. Ø Ã, ÅÆ 2 2 ÅÆ, Ú Ã Ø Ä, ʳ Ö Û Cu Ö Ú, Æ Ü Cu Ö Ú. 2 2 ÅÆ Ì Ø ÅÆ Ì Ö,,»ÞÚ, Ê Ó Ø Ø Ä ÖÅ º À. «ÏÍ, Â Ç¾Ö Ø kj/mol, Ø Ç¾Ö Ø kj/mol [15]., ÅÆ 2 2 ÅÆ 2 Ø Â Cu ± ÖǾ Ø Ç ¾.,, ÅÆ 2 2 ÅÆ Å Cu ÖÞÚ À Đà ÖͲ, ± Ê 2 Ø Â ß Cu ± Û Đà Ö ǾÛ., ÅÆ 2 2 ÅÆ 2 ß Cu ± ÖǾ Â Ø Ç¾, Ø Ç¾ Ó. Ó, Î º E a <80 kj/mol À  Ǿ Imidazole Phenyl 2 imidazoline In(I corr, A/cm 2 ) BlankR 2 = Imidazole R 2 = Phenyl-2-imidazoline R 2 = T -1, 10-3 K -1 4 Cu ³ Ï mol/l mol/l 2 2 Õ 5% H 2 SO 4 Ê Õ Arrhenius Fig.4 Arrhenius plots for Cu in 5% H 2 SO 4 without and with addition of mol/l imidazole and mol/l 2 Phenyl 2 imidazoline (R 2 correlation coefficient) 80 kj/mol À Ø Ç¾Ö Ú [6,12] Å Å º Û, ÃÅÆ 2 2 ÅÆ 2 Ø Â Cu ± ÖǾÀ  Ǿ. Ú», Í ± ¾ ºÇ¾ Gibbs н G m Ǿ H m ÅÊ 2 Ø ÂÖǾ Þ Û. 2.2» 2 2 Î Cu à ÆÀ Å ÅÆ 2 2 ÅÆ Cu ± Ö Ç¾Û, ºÓ (25±1) Í ÓÖÞÚ η=θ Langmuir Ç¾Ú ß Û [24] : Kc = θ/(1 θ) (2)
6 1022 Ý 49 ß, K Langmuir «, c ÞÚ Ö (mol/l), θ ± ¹. K G m ÖÊÌ [25] : K = exp( G m /(R g T))/55.5 (3) ÞÚ η ± ± ¹ θ, ± Langmuir Ç ¾Ú à : c/η = c + 1/K (4) c/η Å c ¹, ÓÑι 5 Ö ¹. ½¹ 5 ÉÏ, Ü «Langmuir Ç¾Ú Ã, Å Æ 2 2 ÅÆ Ö ÊÞÌ« , ± ÅÆ 2 2 ÅÆ ß Cu ± ÖǾ Ǿ. ½, ¹ 5 2 ² Ö ÓÅ Ö 1/K, ½ß (3) ÈÅÆ 2 2 ÅÆ Ö G m kj/mol. ½ º ÉÏ, ÅÆ 2 2 ÅÆ Ö G m À», 2 2 Å Æ Ö G m ÅÆÖ G m, ± Ú Ú ÍÊ 2 ÞÚ ßÀÉÐ ÜǾ Cu ±, 2 2 ÅÆ Cu ± ÖǾ ÅÆ. [15 19] À Ç G m 20 kj/mol  Ǿ, G m 40 kj/mol Ø Ç¾, 2 É Ö Â Ø Ç¾. ½ ÉÏ, ÅÆ ß Cu ± ÖǾ Â Ø Ç¾, Ø Ç¾ Ó, Æ 2 2 ÅÆ Ö Ç¾ Ø Ç¾. Ê º E a kj/mol Ö c / Imidazole R 2 = Phenyl-2-imidazoline R 2 = c, mol/l Cu Õ Langmuir Æ ½Ù Fig.5 Langmuir adsorption curves on Cu surface of imidazole and 2 Phenyl 2 imidazoline in 5% H 2 SO 4 solution(c concentration)  Ǿ, E a kj/mol Ö Ø Ç¾ ÚÖº, Æ E a <80 kj/mol À  Ǿ, 80 kj/mol À Ø Ç¾ ÚÖº». Ǿ à ÉÇ Arrhenius Ã, Arrhenius Ã: K = A 1 exp( H m /(R g T)) (5) ß (2) Å«ÓÑ: lg[θ/(1 θ)] = lg A 1 + lg c H m /2.3R g T (6) ß, A 1 ÀÊÖ «. lg[θ/(1 θ)] 1/T ÖÊ̹, º ι 6. ½ Ñ É ÓÅ Æ 2 2 ÅÆ Cu ± Ö H m, G m = H m T S m, É ÈǾ S m, Ê º ± 5. ½± 5 ÉÏ, ÅÆ 2 2 ÅÆ Ö H m À», ±» Cu ± ÖǾ à ŠÃ. ½,» S m», ± Û Ú ÃÖ Û, Ì ĐÖÙ, ØÀĐ Ç¾. ½, ÅÆ 2 2 ÅÆ Cu ÖǾÅÀ 40 kj/mol, ±»Ç¾ ÞÀ Ø Ç¾, Ê º G m Ǿ ÞÖº. ½, Ê º E a kj/mol Ö Â Ç¾, E a kj/mol Ö Ø Ç¾ ÚÖº, Æ E a <80 kj/mol À  Ǿ, 80 kj/mol lg[ /(1- )] Imidazole R 2 = Phenyl-2-imidazoline R 2 = T --1, 10-3 K Õ lg[θ/(1-θ)] 1/T ÉË Fig.6 Plots of lg[θ/(1 θ)] versus 1/T for imidazole and 2 Phenyl 2 imidazoline (θ surface coverage) 5 «2 2 «À Cu ² È Æ Table 5 Adsorption thermodynamic values of imidazole and 2 Phenyl 2 imidazoline on Cu surface Material G m, kj/mol H m, kj/mol S m, J/(mol K) Imidazole Phenyl 2 imidazoline
7 y8, e ou t : E H2SO4 Q b a 2 2 Cu p xt x a M 0 u7 H9t O2 9" #vr.zb. $Y, t E <80 kj/mol H 6J O2, Æ E >80 kj/mol H9t O2 r" #v >. 2.3 \^/ \^`$ Cu "1A49 3 zv ' \ 96 % r J t O 2 ` 6 *vr j. O2 rzv X*v 3ad k, ' \ O 2, 6 " k6 % r ` u 1 za, y 6 % hu = 6F, L *v ( r t, z*v ; s O2rzv "{ar z. G6 % th? z q, 9*v (3 R r ` Ja 2, y*v h. t O 2 r a~6 % Q tr6 % (6 ={ 6 tj) GSVn, Æ3 zv " {. M d r z.={ (N, S O) G { Qzv "{d GB 3A { dr π {Ja.M ( " " v. v). $ Y, zv g6 % r S V n # G { a a [26] F { ÆtH$?", yzv "{YOxO2G6 % a. G H SO S d, Æ 2 2 Æ "{ H 9 H (, jh [{, / ("(VU : $Y, G z*v3ad, Æ Æ" { Æ [{ 2 gt { G " ( 9 Æ 2 2 Æ G Cu % r O 2 = -. $ Æ va r 2? N ={ G N {, / H 9 Cu % r S V n th$?", th- 7a b rt O2?; $ F $ qn1<\, 7 Cu Fig.7 Schematic of adsorption for imidazole on Cu surface (A hydrogen ion repellent region) (a) bond between Cu and N1 atom (b) bond between Cu and N3 atom (c) bond between Cu and N1 atom of N onium ion (d) physical adsorption of N onium ion F 1023 F $ qn1<\, Cu Fig.8 Schematic of adsorption for 2 Phenyl 2 imidazoline on Cu surface (A hydrogen ions repellent region, B hydrophobic region) (a) two bonds between Cu and N1 atom and the phenyl (b) two bonds between Cu and N3 atom and phenyl (c) two bonds between Cu and N1 atom and phenyl of N onium ion (d) two bonds between Cu and N onium ion and phenyl
8 1024 Ý 49 Æ ß Ö ½ N ß H +, Æ Å ß, Æ ØÀ¹ 7c ÖØ Ç¾. «Æ «, ßР ǾÖØßǾ Ö± [26], ÆÉ Ç ÅÆ ß Ð Cu ± ι 7d Ö Ǿ. ½ 2 2 ÅÆ ß ÅÆ ßÖºÅ,» ß Ö π  ºÅ ( ), ± ÖËÎÒ ßÆØ À, Ê 2 2 ÅÆ Cu ± ÖǾ ÅÆ Ö., Þ Ú 2 2 ÅÆ ÞÚ ß Ð Cu ± ØÀ¹ 8 Ö 4 Ó Ç¾ ºÅ. ¹ 7 8 ÖǾ ºÅ, Cu ± Ö Ù ½ Þ, Ä Ú Ö Ø, Æ À Å Cu Þ Ö Ú. ½, ¹ 7c 8c Ö ß (A ), Å Ú Ö H + ĐÖ Å º,, H + Ë Cu ±, Æ Cu Ö ÚÛ. ¹ 7, ¹ 8 Ǿ ºÅ Þ Ö Þ º (B ), Ú ÊÖ Â ¾ (Î H 2 O ß), Ê ÝÓ Ú, Ê 2 2 ÅÆ ÖÞÚ ÅÆ ÖÓ. 3 (1) 5% H 2 SO 4 Ë, ÅÆ 2 2 Å Æ Å Cu ÖÆ Ã± Ø ÃÀ ĐÖ º, 2 2 ÅÆ Å Cu ÖÞÚÞ Å ÆÖ. (2) ÅÆ 2 2 ÅÆ Cu ± ÖǾ à ŠÃ, À Ø Ç¾, ³ Langmuir Ç¾Ú ß. (3) ÅÆ Ì, 2 2 ÅÆ Cu ± ØÀØ Ç¾ º,»Ç¾ ºÅ Þ Ö Þ º, Æ 2 2 ÅÆ ÖÞ Ú. ÁÄ [1] Huvnh N, Bottle S E, Notoya T, Trueman A, Hinton B, Schweinsberg D P. Corros Sci, 2002; 44: 1257 [2] He X K, Chen B Z, Zhang Q F. J Chin Soc Corros Prot, 2004; 24: 1 ( ÔÎ, Ë, Æ. µù Ô, 2004; 24: 1) [3] Mihit M, El Issami S, Bouklah A, Bazzi L, Hammouti B, Addi A E, Salghi R, Kertit S. Appl Surf Sci, 2006; 252: 2389 [4] Zhang D Q, Gao L X. Corros Sci Prot Technol, 2001; 13: 136 (Æ, Ô. µùè Ô, 2001; 13: 136) [5] Zhou J H, Li J N, Luo Z Y. J South China Normal Univ, 2009; 3: 70 ( Ö,,. Ö Ñ, 2009; 3: 70) [6] Wang X Q, Liu R Q, Zhu L Q, Gong J W. Acta Phys Chim Sin, 2007; 23: 21 ( À, Ù, Ò, Á. Á, 2007; 23: 21) [7] Zhang X J, Liu R Q, Wang X Q. Acta Phys Chim Sin, 2008; 24: 338 (Æ, Ù, À. Á, 2008; 24: 338) [8] Ek Lisac S E, Gazivoda A, Madzarac M. Electrochim Acta, 2002; 47: 4189 [9] Liao D M, Yu P, Luo Y B, Song B, Yao L, Chen Z G. J Chin Soc Corros Prot, 2002; 22: 359 (Ð, µ, Å,, Ó,. µù Ô, 2002; 22: 359) [10] Ali S A, El Shareef A M, Al Ghamdi R F, Saeed M T. Corros Sci, 2005; 47: 2659 [11] Yin Y J. Concise Course of Physical Chemistry. Beijing: Higher Education Press, 2007: 293 (². Á «µâ. : Ùµ Ç, 2007: 293) [12] Ebenso E E, Ekpe U J, Ita B I, Offiong O E, Ibok U J. Mater Chem Phys, 1999; 60: 79 [13] Abd EI Rehim S S, Amin M A, Moussa S O, Ellithy A S. Mater Chem Phys, 2008; 112: 898 [14] Bouklah M, Benchat N, Hammouti B, Aouniti A, Kertit S. Mater Lett, 2006; 60: 1901 [15] De Souza F S, Giacomelli C, Goncalves R S, Spinelli A. Mater Sci Eng, 2012; C32: 2436 [16] Ahamad I, Prasad R, Quraishi M A. J Solid State Electrochem, 2010; 14: 2095 [17] Dahmani M, Touhami A E, Al Deyab S S, Hammouti B, Bouyanzer A. Int J Electrochem Sci, 2010; 5: 1060 [18] Yazdzad A R, Shahrabi T, Hosseini M G. Mater Chem Phys, 2008; 109: 199 [19] Atkins P W. Physical Chemistry. 6 Ed., Oxford: Oxford University Press, 1999: 857 [20] Cao C N. Electrochemistry of Corrosion. Beijing: Chemical Industry Press, 1994: 66 ( Ê. µùß. : Ç, 1994: 66) [21] Wang H L, Fan H B, Zheng J S. Mater Chem Phys, 2003; 77: 655 [22] Touir R, Cenoui M, Bakri M E, Touhami M E. Corros Sci, 2008; 50: 1530 [23] Bouklah M, Hammouti B, Lagrenee M, Bentiss F. Corros Sci, 2006; 48: 283 [24] Abiola O K, Otaigbe J O E. Corros Sci, 2009; 51: 2790 [25] Tian H, Li W, Cao K, Hou B. Corros Sci, 2013; 73: 281 [26] Wei B M. Metal Corrosion Theory and Application. Beijing: Chemical Industry Press, 1984: 266 ( «. µù ³¹. : Ç, 1984: 266) ( Ö: Ü )
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