S
S. O. Pehkonen
Researcher at National University of Singapore
Publications - 16
Citations - 787
S. O. Pehkonen is an academic researcher from National University of Singapore. The author has contributed to research in topics: Corrosion & Erosion corrosion of copper water tubes. The author has an hindex of 14, co-authored 16 publications receiving 709 citations.
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Effects of ring substituents on the protective properties of self-assembled benzenethiols on copper
TL;DR: In this article, the self-assembled monolayers of a series of substituted benzenethiol (BT) molecules, X-C 6 H 4 4 -SH (where X = meta -NH 2, ortho -NH 3, para -NHCOCH 3, para -F, para-CH 3 and para -CH(CH 3 ) 2 ), have been prepared by adsorption from a solution onto a fresh copper (Cu) surface pretreated by a nitric acid etch.
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Degradation of monomethylmercury chloride by hydroxyl radicals in simulated natural waters.
TL;DR: The degradation of methylmercury chloride by hydroxyl radicals (*OH) has been investigated using nitrate photolysis from 285 to 800 nm with a 450 W Xenon lamp as the (*OH source, indicating that degradation by (*)OH may be one of the important pathways of methylMERcury degradation in sunlit surface waters.
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Copper corrosion in mildly alkaline water with the disinfectant monochloramine
TL;DR: The corrosion of pure copper for a period of 2-30 days was investigated in simulated tap water containing monochloramine (normally at 4.0 mg/l) in the pH range of 7.6-8.4 as mentioned in this paper.
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Effect of replacing a hydroxyl group with a methyl group on arsenic (V) species adsorption on goethite (α-FeOOH)
TL;DR: The results of this study support the thesis that the charge on the goethite surface comes primarily from protonation of the triply bound oxygen atoms on the surface, which is inconsistent with most adsorption models that postulate a singly coordinated hydroxyls contributing to both the Adsorption and the surface charge.
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Self-assembled organic thin films on electroplated copper for prevention of corrosion
TL;DR: In this paper, a self-assembled organic thin films of dodecanethiol (DT), mercaptobenzothiazole (MBT), BTA, imidazole (IMD), and benzothiazoles (BT) are characterized by x-ray photoelectron spectroscopy.