Pyrite Passivation by Triethylenetetramine: An Electrochemical Study
The potential of triethylenetetramine (TETA) to inhibit the oxidation of pyrite in H2SO4 solution had been investigated by using the open-circuit potential (OCP), cyclic voltammetry (CV), potentiodynamic polarization, and electrochemical impedance (EIS), respectively. Experimental results indicate t...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | Journal of Analytical Methods in Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2013/387124 |
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| _version_ | 1832567988182581248 |
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| author | Yun Liu Zhi Dang Yin Xu Tianyuan Xu |
| author_facet | Yun Liu Zhi Dang Yin Xu Tianyuan Xu |
| author_sort | Yun Liu |
| collection | DOAJ |
| description | The potential of triethylenetetramine (TETA) to inhibit the oxidation of pyrite in H2SO4 solution had been investigated by using the open-circuit potential (OCP), cyclic voltammetry (CV), potentiodynamic polarization, and electrochemical impedance (EIS), respectively. Experimental results indicate that TETA is an efficient coating agent in preventing the oxidation of pyrite and that the inhibition efficiency is more pronounced with the increase of TETA. The data from potentiodynamic polarization show that the inhibition efficiency (η%) increases from 42.08% to 80.98% with the concentration of TETA increasing from 1% to 5%. These results are consistent with the measurement of EIS (43.09% to 82.55%). The information obtained from potentiodynamic polarization also displays that the TETA is a kind of mixed type inhibitor. |
| format | Article |
| id | doaj-art-34c16a2e935f4b3fbe0247c5951972e2 |
| institution | Kabale University |
| issn | 2090-8865 2090-8873 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Analytical Methods in Chemistry |
| spelling | doaj-art-34c16a2e935f4b3fbe0247c5951972e22025-02-03T00:59:58ZengWileyJournal of Analytical Methods in Chemistry2090-88652090-88732013-01-01201310.1155/2013/387124387124Pyrite Passivation by Triethylenetetramine: An Electrochemical StudyYun Liu0Zhi Dang1Yin Xu2Tianyuan Xu3Department of Environmental Science and Engineering, Xiangtan University, Xiangtan 411105, ChinaThe Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou 510006, ChinaDepartment of Environmental Science and Engineering, Xiangtan University, Xiangtan 411105, ChinaDepartment of Environmental Science and Engineering, Xiangtan University, Xiangtan 411105, ChinaThe potential of triethylenetetramine (TETA) to inhibit the oxidation of pyrite in H2SO4 solution had been investigated by using the open-circuit potential (OCP), cyclic voltammetry (CV), potentiodynamic polarization, and electrochemical impedance (EIS), respectively. Experimental results indicate that TETA is an efficient coating agent in preventing the oxidation of pyrite and that the inhibition efficiency is more pronounced with the increase of TETA. The data from potentiodynamic polarization show that the inhibition efficiency (η%) increases from 42.08% to 80.98% with the concentration of TETA increasing from 1% to 5%. These results are consistent with the measurement of EIS (43.09% to 82.55%). The information obtained from potentiodynamic polarization also displays that the TETA is a kind of mixed type inhibitor.http://dx.doi.org/10.1155/2013/387124 |
| spellingShingle | Yun Liu Zhi Dang Yin Xu Tianyuan Xu Pyrite Passivation by Triethylenetetramine: An Electrochemical Study Journal of Analytical Methods in Chemistry |
| title | Pyrite Passivation by Triethylenetetramine: An Electrochemical Study |
| title_full | Pyrite Passivation by Triethylenetetramine: An Electrochemical Study |
| title_fullStr | Pyrite Passivation by Triethylenetetramine: An Electrochemical Study |
| title_full_unstemmed | Pyrite Passivation by Triethylenetetramine: An Electrochemical Study |
| title_short | Pyrite Passivation by Triethylenetetramine: An Electrochemical Study |
| title_sort | pyrite passivation by triethylenetetramine an electrochemical study |
| url | http://dx.doi.org/10.1155/2013/387124 |
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