Pregled bibliografske jedinice broj: 90398
Comparation of polyaniline and poly(ortho-ethoxyaniline) corrosion protection properties
Comparation of polyaniline and poly(ortho-ethoxyaniline) corrosion protection properties // Corrosion and corrosion protection / Sinclair, J.D. ; Frankenthal, R.P. ; Kalman E. ; Plieth, W. (ur.).
Singapur : London : München : Ženeva : Tokyo : Hong Kong : Taipei : Peking : Šangaj : Tianjin : Chennai: The Electrochemical Society (ECS), 2001. str. 548-556 (poster, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
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Naslov
Comparation of polyaniline and poly(ortho-ethoxyaniline) corrosion protection properties
Autori
Kraljić, Marijana ; Mandić, Zoran ; Duić, Ljerka
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
Corrosion and corrosion protection
/ Sinclair, J.D. ; Frankenthal, R.P. ; Kalman E. ; Plieth, W. - Singapur : London : München : Ženeva : Tokyo : Hong Kong : Taipei : Peking : Šangaj : Tianjin : Chennai : The Electrochemical Society (ECS), 2001, 548-556
Skup
Corrosion and corrosion protection - International symposium
Mjesto i datum
San Francisco (CA), Sjedinjene Američke Države, 02.09.2001. - 07.09.2001
Vrsta sudjelovanja
Poster
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
polyaniline; poly(ortho-ethoxyaniline); corrosion protection; stainless steel
Sažetak
Polyaniline (PANI) and poly(ortho-ethoxyaniline) (POEA) were electrosynthesised on stainless steel and on Pt electrodes in phosphoric acid solution (3 moldm-3), using cyclic voltammetry. Concentrations of monomers were 0.5 mol dm-3. PANI and POEA coated steel electrodes were examined in 3 mol dm-3 H3PO4 by monitoring the open circuit potential vs. time and it was found that both stabilise the potential of steel within the passive region. Using electrochemical impedance spectroscopy (EIS) it was found that, in the potential range of emeraldine, PANI and POEA on Pt show capacitive behaviour. EIS measurements of PANI and POEA on stainless steel, however, showed different behaviour of these two layers. On stainless steel, the thicker PANI layer exhibited capacitive behaviour with small resistance at high frequencies. The thinner PANI layer exhibited much higher resistance. Measurements with POEA on steel showed two resistances. Equivalent circuits with the corresponding parameters were developed for each layer obtained on stainless steel. Using EIS it was found that PANI, as well as POEA, provides corrosion protection.
Izvorni jezik
Engleski
Znanstvena područja
Kemijsko inženjerstvo
