%0 Journal Article
%T kopsiasingapurensis提取物对酸性介质中低碳钢的缓蚀效应
%A raja
%A pandian
%A bothi
%A rahim
%A afidah
%A abdul
%A osman
%A hasnah
%A awang
%A khalijah
%J 物理化学学报
%D 2010
%X theinfluenceofthealkaloidextractofkopsiasingapurensisonthecorrosionbehaviorofmildsteel(ms)in1mol·l-1hcland1mol·l-1h2so4wasstudiedusingelectrochemicaltechniques,viz.,potentiodynamicpolarizationandacimpedance.theexperimentalresultsclearlyshowthattheplantextracteffectivelyinhibitscorrosioninbothacidmediaandtheinhibitionefficiencyobtainedfromtheelectrochemicaltechniquesisingoodagreement.furthermore,thepolarizationtechniqueindicatesthattheextractactsasananodictypeinhibitorinhclandasamixedtypeinh2so4.scanningelectronmicroscopy(sem)wascarriedouttoexaminethesurfacemorphologicalchangesofmetalspecimensinboththeinhibitedanduninhibitedsolutions.semimagesshowtheformationofanadsorbedlayeroverthemetalsurfacebytheinhibitormolecule.thepresenceofalkaloidalconstituentsintheplantextractwasconfirmedbyfouriertransforminfrared(ftir)spectroscopyandchemicalanalysis.
%K corrosioninhibitor
%K kopsiasingapurensis
%K mildsteel
%K polarization
%K impedance
%K sem
%K ftir
%U http://www.whxb.pku.edu.cn/CN/abstract/abstract27101.shtml