članak: 1 od 1  
Journal of the Serbian Chemical Society
2006, vol. 71, br. 2, str. 167-175
jezik rada: engleski
izvorni naučni članak
doi:10.2298/JSC0602167G

Proučavanje inhibicije korozije bakra samouređenim monoslojevima trietil-fosfata i trifenil-fosfata
aDepartment of Chemistry, Shandong University, Jinan, China
bDepartment of Chemistry, Shandong University, Jinan, China; State Key Laboratory for Corrosion and Protection of Metals, Shenyang, China

e-adresa: shchen@sdu.edu.cn

Sažetak

Samouređeni monoslojevi dva fosfatna jedinjenja, trietil-fosfata (TEP) i trifenil- fosfata (TPP), su korišćeni kao inhibitori korozije bakra u rastvoru 0,2 mol dm-3 NaCl. Efekat inhibicije je ispitivan metodom spektroskopije elektrohemijske impedancije (SEI). Rezultati su pokazali da sa povećanjem vremena uranjanja elektrode u rastvor pomenutih jedinjenja u etanolu raste stepen inhibicije, ali samo do nekog kritičnog vremena, nakon kojeg stepen inhibicije počinje da opada. Pri istom vremenu formiranja monosloja, TPP je pokazao veći inhibicioni efekat nego TEP. Veza između inhibicionog efekta i strukture jedinjenja je objašnjen ab initio proračunom.

Ključne reči

copper; phosphates; self-assembled monolayers (SAMs); electrochemicalimpedance spectroscopy (EIS); ab initio calculation

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