%0 Journal Article
%T INHIBITION EFFECT OF METAL-FREE PHTHALOCYANINE, COPPER PHTHALOCYANINE AND ZINC PHTHALOCYANINE ON MILD STEEL IN 1 mol/L H2SO4<br>无金属酞菁、酞菁铜和酞菁锌在1 mol/L H2SO4中对Q235钢的缓蚀作用
%A ZHAO Peng
%A LI Yan
%A LIANG Qiang
%A <br>赵澎
%A 李焰
%A 梁强
%J 腐蚀科学与防护技术
%D 2006
%I 
%X The inhibition effect of metal-free phthalocyanine(H_2Pc),copper pthalocyanine(CuPc) and zinc phthalocyanine(ZnPc) on mild steel in 1 mol/L H_2SO_4 was investigated by weight loss,electrochemical measurement and SEM observation.The weight loss results showed that the adsorption of these compounds obeyed to Langmuir isotherm;the potentio-dynamic curves indicated both anodic and cathodic processes of mild steel corrosion in H_2SO_4 were suppressed by phthalocyanines,the Nyquist diagram expressed as a capacity semi-circle,and charge transfer resistance R_t increased with the rising of pthalocyanines concentration;the surface morphology analysis of the tested samples also proved that the integrity of steel surface was enhanced and the corrosion was inhibited when added phthalocyanines;then the result of quantum chemical caluculation showed that the inhibition efficiency of phthalocyanines decreased with the increase of LUMO energy.
%K SEM<br>酞菁化合物
%K 缓蚀剂
%K 电化学实验
%K 量子化学
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=9F6E6EC8BA5BB62698F6640073DDD6E1&aid=7D862E697BE70AC5&yid=37904DC365DD7266&vid=13553B2D12F347E8&iid=E158A972A605785F&sid=6CCE24D86D03D083&eid=C812B90E96151014&journal_id=1002-6495&journal_name=腐蚀科学与防护技术&referenced_num=0&reference_num=17