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2017, vol. 58, br. 2, str. 131-143
Ekstrakt Cupressus sempervirens kao zeleni inhibitor za koroziju ugljeničnog čelika u rastvoru hlorovodonične kiseline
aEl-Mansoura University, Department of Chemistry, Faculty of Science, El-Mansoura, Egypt
bMansoura University, Department of Agric. Chemistry, Faculty of Agriculture, Mansoura, Egypt

e-adresaasfouda@hotmail.com
Ključne reči: Cupressus sempervirens; zeleni inhibitor; ugljenični čelik; adsorpcija; HCl
Sažetak
Efekat vodenog ekstrakta Cupressus sempervirens na način korozije ugljeničnog čelika u rastvoru 1M hlorovodonične kiseline je određivana promenom mase pri redukciji, izdvajanjem vodonika i metodama - elektrohemijskom frekvencijskom modulacijom (EFM), potentiodinamičkom polarizacijom i merenjem impedanse (EIS). Efikasnost ekstrakta Cupressus sempervirens je ispitivana sa povećanjem doze ekstrakta i temperature. Termodinamički parametri procesa korozije i adsorpcije su mereni i diskutovani. Ekstrakt Cupressus se adsorbuje na površini metala hemijski i prati Temkinovu izotermu. Rezultat potentiodinamičke polarizacije je doveo do zaključka da ekstrakt pripada mešovitom tipu inhibitora. Navedeni rezultati dobijeni pri različitim metodama ispitivanja bili su u najboljoj korelaciji.
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O članku

jezik rada: engleski
vrsta rada: naučni članak
DOI: 10.5937/ZasMat1702131F
objavljen u SCIndeksu: 22.06.2017.
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