@article{ef212fcd84094bed98603f0ebb49ffe5,
title = "Electrochemical studies of packed iron powder electrodes: Effects of common constituents of natural waters on corrosion potential",
abstract = "Using a powder disk electrode (PDE) made with micron-sized, high purity iron metal we investigated how the corrosion of this material is affected by solution conditions that are relevant to the degradation of contaminants in environmental remediation applications. Changes in corrosion potential (Ecorr) with time showed that low pH, high concentrations of chloride, and natural organic matter led to breakdown of the passive film. Bicarbonate caused Ecorr to decline rapidly into the active potential region, but then Ecorr rose back into the passive region over 10s of hours. The rate of decline in Ecorr was greatest at higher pHs, suggesting a specific effect of HCO3- rather than a general effect of pH.",
keywords = "A. Iron, B. Electrochemistry, B. Potentiometry, C. Oxide coatings, C. Passive films",
author = "Nurmi, {James T.} and Tratnyek, {Paul G.}",
note = "Funding Information: The authors thank A. Agrawal (Wright State University), J. Amonette (Pacific Northwest National Laboratory), and S. O{\textquoteright}Hannesin (EnviroMetal Technologies) for providing some of the samples of granular iron used in this study. The authors also thank Eric Davis who helped with the collection of some of the electrochemical data presented in this paper. Electron microscopy was conducted by James Young at the William R. Wiley Environmental Molecular Sciences Laboratory (EMSL), Richland, WA. This research was sponsored by the Nanoscale Science, Engineering, and Technology program of the US Department of Energy, Office of Science (DE-AC06-76RLO 1830). This paper has not been subject to review by DOE and therefore does not necessarily reflect the views of DOE, and no official endorsement should be inferred.",
year = "2008",
month = jan,
doi = "10.1016/j.corsci.2007.06.016",
language = "English (US)",
volume = "50",
pages = "144--154",
journal = "Corrosion Science",
issn = "0010-938X",
publisher = "Elsevier Limited",
number = "1",
}