Amines as Steel Corrosion Inhibitors in Ethanol-Gasoline Blends
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F24%3A43927550" target="_blank" >RIV/60461373:22310/24:43927550 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22320/24:43927550 RIV/60461373:22810/24:43927550
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0016236123032957" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0016236123032957</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.fuel.2023.130681" target="_blank" >10.1016/j.fuel.2023.130681</a>
Alternative languages
Result language
angličtina
Original language name
Amines as Steel Corrosion Inhibitors in Ethanol-Gasoline Blends
Original language description
Several amines with different chemical structures were tested as corrosion inhibitors for carbon steel in ethanol-gasoline blends (EGBs) using electrochemical methods. The electrochemical measurements were supplemented by surface analyses (SEM, XPS) and static corrosion tests. The findings established that the inhibition efficiency or passivation of steel in the tested EGBs was significantly influenced by the chemical structure and related physical properties of the amines. This inhibitory efficiency was somewhat dependent on the polarity of the corrosion environment and the formation of a corrosively aggressive aqueous microphase on the steel surface. Among the tested inhibitors, hexamethylenediamine, ethylenediamine, diethylenetriamine, triethylenetetramine, and piperazine exhibited the highest effectiveness. Using these amines, polarization resistances in the order of magnitude of MΩ∙cm2 were measured. The electrochemical results highlighted the superior efficiency of these amines, which was higher than 96% even at concentrations as low as 25 mg/L. At concentrations of 100 mg/L, these amines were able to compensate for 500 mg/L of the acetic acid and 20 mg/L of sodium chloride in the EGBs. The highest polarization resistance and efficiency of 9 MΩ∙cm2 and of 99.9%, respectively, were measured on mild steel in the presence of hexamethylenediamine. Its high efficiency was also confirmed during the immersion test, where an efficiency of 97.6% was found after three months of exposure.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20704 - Energy and fuels
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Fuel
ISSN
0016-2361
e-ISSN
1873-7153
Volume of the periodical
361
Issue of the periodical within the volume
Duben
Country of publishing house
GB - UNITED KINGDOM
Number of pages
21
Pages from-to
130681
UT code for WoS article
001150081500001
EID of the result in the Scopus database
2-s2.0-85181654290