Green Extract of Mate Tea as Corrosion Inhibitor of Copper and Aluminum

被引：2

作者：

Derna, Ana M. ^{[1
]}

Mendez, Claudia M. ^{[1
]}

Gassa, Liliana M. ^{[2
,3
]}

Ares, Alicia E. ^{[1
,2
]}

机构：

[1] Natl Univ Misiones, Fac Sci, 1552 Azara St, RA-3300 Posadas, Misiones, Argentina

[2] Natl Res Council CONICET Argentina, CIC, Buenos Aires, DF, Argentina

[3] INIFTA, Inst Invest Fis Quim Teor & Aplicadas, Calle 64 Diag 113, RA-1900 La Plata, Buenos Aires, Argentina

来源：

PROCEEDINGS OF THE 3RD PAN AMERICAN MATERIALS CONGRESS | 2017年

关键词：

Inhibitors; Mate tea; Copper; Aluminum; Corrosion parameters; STEEL; ALLOY; MEDIA;

D O I：

10.1007/978-3-319-52132-9_14

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Many of the corrosion inhibitors in current use are expensive and toxic so the current trend is to study compounds that are environmentally friendly and efficient. Inhibitors are easy to use and they have the additional advantage that can be applied in situ and without causing significant disruption in the process. In the present work we investigate the influence of the aqueous extract of yerba mate as corrosion inhibitor of copper and aluminum in 0.5 M NaCl and 1 M HCl solutions, using different electrochemical techniques. The following inhibition efficiencies: 56% for copper in 0.5 M NaCl with 25% concentration of extract, 17% for copper in 1 M HCl with 5% concentration of extract, and 99% for aluminum in 0.5 M NaCl for 1% concentration of extract were obtained by potentiodynamic polarization.

引用

页码：135 / 144

页数：10

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