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dc.contributor.authorShi, X.
dc.contributor.authorAvci, Recep
dc.contributor.authorLewandowski, Zbigniew
dc.identifier.citationShi, X., R. Avci, and Z. Lewandowksi, "Electrochemistry of passive metals modified by manganse oxides deposited by leptothrix discophora: two-step model verified by tof-sims," Corrosion Science, 44:1027-1045 (2002).en_US
dc.description.abstractWe have applied time-of-flight secondary ion mass spectroscopy (ToF-SIMS) to study microbially induced ennoblement of 316L stainless steel and Ti-A1-4V surfaces exposed to manganese-oxidizing bacteria Leptothrix discophora SP-6. Our observations indicate that manganese biomineralization occurs in two steps: first, the divalent manganese (Mn2+) is oxidized to manganese dioxide, MnO2. Both reactions contribute to an increase in the open circuit potential and hence to the ennoblement of the material. Manganese cycling at a surface of passive metals produces renewable cathodic reactants, manganese oxyhydroxide and manganese dioxide, and endangers the material integrity.en_US
dc.titleElectrochemistry of passive metals modified by manganse oxides deposited by leptothrix discophora: two-step model verified by tof-simsen_US
mus.citation.journaltitleCorrosion Scienceen_US
mus.identifier.categoryEngineering & Computer Scienceen_US
mus.relation.collegeCollege of Engineeringen_US
mus.relation.departmentCenter for Biofilm Engineering.en_US
mus.relation.departmentChemical & Biological Engineering.en_US
mus.relation.departmentChemical Engineering.en_US
mus.relation.universityMontana State University - Bozemanen_US
mus.relation.researchgroupCenter for Biofilm Engineering.en_US

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