Adsorption and film growth of N-methylamino substituted triazoles on copper surfaces in hydrocarbon media

Levin, Martina; Wiklund, Per; Arwin, Hans

doi:10.1016/j.apsusc.2007.07.023

Cited by 21 publications

(13 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Complexes of the Cu n (BTA) n±1 type were also identified. 18,28 Oertel et al made analogous observations for desorption and fragmentation of a similar molecule, tolyltriazole, which was reported to desorb from Cu(111) at ca. 580 K. 29 In the light of those results and our former report, where the majority of the adsorbed species was identified as the dimer, 11 we are inclined to consider that the major higher temperature desorbing species is the dimer.…”

Section: Resultsmentioning

confidence: 82%

“…From SIMS experiments conducted on copper foils treated with glycine, hydrogen peroxide, and BTAH, Deshpande et al identified only mass 299 amu and not 182 amu. Levin et al identified signals from the intact benzotriazole and several heavier masses ascribed to ions of the Cu x CN y type. Complexes of the Cu n (BTA) n ±1 type were also identified. , Oertel et al made analogous observations for desorption and fragmentation of a similar molecule, tolyltriazole, which was reported to desorb from Cu(111) at ca.…”

Section: Results and Discussionmentioning

confidence: 99%

“…From SIMS experiments conducted on copper foils treated with glycine, hydrogen peroxide, and BTAH, Deshpande et al 21 identified only mass 299 amu and not 182 amu. Levin et al 28 identified signals from the intact benzotriazole and several heavier masses ascribed to ions of the Cu x CN y type. Complexes of the Cu n (BTA) n±1 type were also identified.…”

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Passivation of Copper: Benzotriazole Films on Cu(111)

et al. 2014

View full text Add to dashboard Cite

Benzotriazole (BTAH) has been used as a copper corrosion inhibitor since the 1950s. However, the molecular level detail of how adsorption and surface passivation occur remains a matter of debate. BTAH adsorption on a Cu(111) single crystal has been investigated from medium coverage to multilayer using scanning tunneling microscopy (STM), temperature-programmed desorption (TPD), high resolution electron energy loss (HREEL) spectroscopy and supporting density functional theory (DFT) calculations. Both physisorbed and chemisorbed phases are observed. One extended and highly ordered self-assembled metal−organic phase is seen at saturation coverage and above. A metastable phase is also observed. Complete desorption occurs at ca. 600 K. Those structures are critically discussed in the light of some of the various adsorption models reported in the literature and an alternative adsorption model is proposed. These results allow a further understanding of the interaction between benzotriazole and copper and, in turn, may help understanding the mechanism for protection of copper and copper alloys from corrosion, substantially contributing to a long-standing debate.

show abstract

Section: Resultsmentioning

confidence: 82%

Section: Results and Discussionmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Passivation of Copper: Benzotriazole Films on Cu(111)

et al. 2014

View full text Add to dashboard Cite

show abstract

“…Irgamet 39 and Irgamet 30 are thought to chemically degrade either due to free-radicals such as peroxides [10] or during binding to the copper surface [11]. The chemistry of the passivators is independent of the oxidation of the mineral oil since the highly refined oils exhibited no oxidation and no gas formation in the absence of passivators but exhibited gas formation in the presence of pass iva tors.…”

Section: Severementioning

confidence: 98%

Stray gassing of refinery streams and transformer oil produced from them

Casserly¹,

Rasco²

2014

2014 IEEE 18th International Conference on Dielectric Liquids (ICDL)

View full text Add to dashboard Cite

show abstract

“…The protective film formed by BTA derivatives on copper surfaces may function both as a physical barrier to ionic or reactive species, and to attenuate copper dissolution [25]. Evidence of the presence of tolyltriazole on copper treated in oil was previously shown using Time of Flight Secondary Ion Mass Spectrometry (ToF-SIMS) [26,27], but contextual estimation of its thermal stability were never reported.…”

Section: Introductionmentioning

confidence: 99%

Static secondary ion mass spectrometry investigation of corrosion inhibitor Irgamet ® 39 on copper surfaces treated in power transformer insulating oil

et al. 2015

View full text Add to dashboard Cite

Static secondary ion mass spectrometry was used to study the corrosion inhibitor Irgamet®39 on the surface of copper treated in insulating oils and the effect of temperature changes, by means of temperature programmed desorption experiments under vacuum, on metal coverage. Four commercial oils, both corrosive and noncorrosive, showed no significant influence on the stability of the tolyltriazole layer and the energy of its main desorption event from copper was calculated around 100 kJ mol -1 . Finally, an example of ion imaging as diagnostic tool to track the distribution of corrosion inhibitor and by-products in decommissioned or failed power transformers is described. HighlightsSSIMS was used to study corrosion inhibition of copper treated in insulating oil.Desorption experiments allowed the study of the inhibitor stability in vacuum.The energy of desorption of tolyltriazole under SSIMS conditions was calculated.SSIMS imaging was shown to be an applicable new diagnostic tool for transformers.

show abstract

Adsorption and film growth of N-methylamino substituted triazoles on copper surfaces in hydrocarbon media

Cited by 21 publications

References 24 publications

Passivation of Copper: Benzotriazole Films on Cu(111)

Passivation of Copper: Benzotriazole Films on Cu(111)

Stray gassing of refinery streams and transformer oil produced from them

Static secondary ion mass spectrometry investigation of corrosion inhibitor Irgamet ® 39 on copper surfaces treated in power transformer insulating oil

Contact Info

Product

Resources

About