Manganese dioxide as a potential cathodic reactant in corrosion of stainless steels
Source abstract
Abstract
Abstract Biofilms of Leptothrix discophora SP-6, grown on 316L stainless steel (SS), ennobled the open circuit potential to 410 mV SCE . X-ray Photoelectron Spectroscopy (XPS) identified MnO 2 within these biofilms. Field exposed SS showed similar ennoblement after 30 days. XPS analysis of these samples revealed a mixture of different manganese minerals. Electrochemical reduction of MnO 2 was studied using electroplated SS. Plated MnO 2 was reduced amperometrically. The process was interrupted at different reduction stages. XPS analysis of remaining oxides showed that MnO 2 was reduced through MnOOH to Mn 2+ . We conclude that biomineralized MnO 2 may increase corrosion rates by serving as a cathodic reactant.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Corrosion Behavior and Inhibition · Hydrogen embrittlement and corrosion behaviors in metals · Metal Extraction and Bioleaching
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (35)
Show source-provided references
1. Correlation Entre la Formation de la Pellicule Primaire et la Modification de la Cathodique sur des Aciers Inoxydables Expérimentés en eau de Mer aux Vitesses de 0,3 A 5,2 m/s
2. Johnsen · Corrosion · 1985 · 41 · 29610.5006/1.3582007 ↗
3. Dexter · Corrosion · 1988 · 44 · 71710.5006/1.3584936 ↗
4. Motoda · Corrosion Sci. · 1990 · 31 · 51510.1016/0010-938X(90)90155-X ↗
5. Eashwar · Corrosion Sci. · 1995 · 37 · 116910.1016/0010-938X(94)00166-4 ↗
6. Scotto · Corrosion Sci. · 1985 · 25 · 18510.1016/0010-938X(85)90094-0 ↗
7. R. Holthe, E. Bardal, P.O. Gartland, Proceedings of Corrosion 1988, Paper No. 398, Houston, TX, NACE, 1988
8. Little · Int. Mat. Rev. · 1991 · 36 · 25310.1179/imr.1991.36.1.253 ↗
9. Eashwar · Biofouling · 1995 · 8 · 20310.1080/08927019509378273 ↗
10. S. Dexter, S-H. Lin, Proceedings of Seventh International Congress on Marine Corrosion and Fouling, Valencia, Spain, 1988
11. P. Chandrasekaran, S.C. Dexter, Proceedings of Corrosion 1993, Paper No. 493, Houston, TX, NACE, 1993
12. Failure of chromium-nickel steel in a hydroelectric power plant by manganese-oxidizing bacteria
13. Linhardt · Werkstoffe und Korrosion · 1994 · 45 · 7910.1002/maco.19940450203 ↗
14. Dickinson · Corrosion Sci. · 1996 · 38 · 140710.1016/0010-938X(96)00031-5 ↗
15. Dickinson · Biofouling · 1996 · 10 · 7910.1080/08927019609386272 ↗
16. Dickinson · Appl. Env. Microbiol. · 1996 · 63 · 250210.1128/AEM.63.7.2502-2506.1997 ↗
17. Adams · Geochim. Cosmochim. Acta · 1988 · 52 · 207310.1016/0016-7037(88)90186-X ↗
18. Emerson · Appl. Env. Microbiol. · 1992 · 58 · 400110.1128/AEM.58.12.4001-4010.1992 ↗
19. Gherna · 1981
20. Brewer · Limnol. Oceanogr. · 1971 · 16 · 10710.4319/lo.1971.16.1.0107 ↗
21. Moulder · 1992
22. Oku · J. Electron Spec. Rel. Phen. · 1975 · 7 · 46510.1016/0368-2048(75)85010-9 ↗
23. Oku · J. Electron Spec. Rel. Phen. · 1976 · 8 · 47510.1016/0368-2048(76)80034-5 ↗
24. Fierro · J. Mat. Sci. · 1990 · 25 · 140710.1007/BF00585458 ↗
25. Swift · Mikrochim. Acta · 1995 · 120 · 14910.1007/BF01244428 ↗
26. J. Pendyala, Chemical effects of biofilm colonisation of stainless steels, PhD thesis, Montana State University, Bozeman, MT (1996)10.1116/1.580332 ↗
27. Giovanoli · Helv. Chim. Acta · 1969 · 52 · 233310.1002/hlca.19690520815 ↗
28. Johnson · Geochim. Cosmochim. Acta · 1991 · 52 · 286110.1016/0016-7037(91)90451-A ↗
29. Bard · 1985
30. Greene · Appl. Env. Microbiol. · 1991 · 57 · 111410.1128/AEM.57.4.1114-1120.1991 ↗
31. Lovley · Advances in Agronomy · 1995 · 54 · 17510.1016/S0065-2113(08)60900-1 ↗
32. Nealson · Adv. Appl. Microbiol. · 1988 · 33 · 27910.1016/S0065-2164(08)70209-0 ↗
33. Gouda · Corrosion Sci. · 1993 · 35 · 68310.1016/0010-938X(93)90204-T ↗
34. Pourbaix · Corrosion Sci. · 1993 · 35 · 69310.1016/0010-938X(93)90205-U ↗
35. Dexter · Corrosion · 1998 · 54 · 85110.5006/1.3284804 ↗