Electrochemical behavior of pyrite in sulfuric acid in presence of amino acids belonging to the amino acid sequence of rusticyanin
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2018
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The impact of different concentrations of three amino acids (cysteine, histidine and methionine) which are part of the amino acid sequence of rusticyanin on dissolution of pyrite is investigated by the application of electrochemical techniques. Cyclic voltammetric studies conducted in the anodic direction from corrosion potential have shown that in the vicinity of corrosion potential, histidine and methionine do not influence dissolution of pyrite independently on their concentrations. On the other hand, cysteine and solutions of these amino acids in the molar ratios Cys:His:Met/1:1:1 and Cys:His:Met/1:2:1 accelerate dissolution at concentrations 10−2mol L−1and 10−3mol L−1. Potentiodynamic polarization measurements showed that methionine does not affect the anodic and cathodic dissolution at all concentrations, while histidine does not affect significantly on the anodic dissolution at all concentrations. Cysteine and solutions of three amino acids in the molar ratio Cys:His:Met/1:1:1 a...nd Cys:His:Met/1:2:1 cause intensive cathodic inhibition and anodic activation at concentrations 10−2mol L−1and 10−3mol L−1respectively.
Keywords:
cysteine / electrochemistry / histidine / methionine / pyrite / rusticyaninSource:
Bioelectrochemistry, 2018, 123, 112-118Funding / projects:
- Magnetic and radionuclide labeled nanostructured materials for medical applications (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45015)
DOI: 10.1016/j.bioelechem.2018.04.021
ISSN: 1567-5394
WoS: 000440770200013
Scopus: 2-s2.0-85046789177
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http://linkinghub.elsevier.com/retrieve/pii/S1567539417305881https://vinar.vin.bg.ac.rs/handle/123456789/7692
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VinčaTY - JOUR AU - Maluckov, Biljana S. AU - Mitrić, Miodrag PY - 2018 UR - http://linkinghub.elsevier.com/retrieve/pii/S1567539417305881 UR - https://vinar.vin.bg.ac.rs/handle/123456789/7692 AB - The impact of different concentrations of three amino acids (cysteine, histidine and methionine) which are part of the amino acid sequence of rusticyanin on dissolution of pyrite is investigated by the application of electrochemical techniques. Cyclic voltammetric studies conducted in the anodic direction from corrosion potential have shown that in the vicinity of corrosion potential, histidine and methionine do not influence dissolution of pyrite independently on their concentrations. On the other hand, cysteine and solutions of these amino acids in the molar ratios Cys:His:Met/1:1:1 and Cys:His:Met/1:2:1 accelerate dissolution at concentrations 10−2mol L−1and 10−3mol L−1. Potentiodynamic polarization measurements showed that methionine does not affect the anodic and cathodic dissolution at all concentrations, while histidine does not affect significantly on the anodic dissolution at all concentrations. Cysteine and solutions of three amino acids in the molar ratio Cys:His:Met/1:1:1 and Cys:His:Met/1:2:1 cause intensive cathodic inhibition and anodic activation at concentrations 10−2mol L−1and 10−3mol L−1respectively. T2 - Bioelectrochemistry T1 - Electrochemical behavior of pyrite in sulfuric acid in presence of amino acids belonging to the amino acid sequence of rusticyanin VL - 123 SP - 112 EP - 118 DO - 10.1016/j.bioelechem.2018.04.021 ER -
@article{ author = "Maluckov, Biljana S. and Mitrić, Miodrag", year = "2018", abstract = "The impact of different concentrations of three amino acids (cysteine, histidine and methionine) which are part of the amino acid sequence of rusticyanin on dissolution of pyrite is investigated by the application of electrochemical techniques. Cyclic voltammetric studies conducted in the anodic direction from corrosion potential have shown that in the vicinity of corrosion potential, histidine and methionine do not influence dissolution of pyrite independently on their concentrations. On the other hand, cysteine and solutions of these amino acids in the molar ratios Cys:His:Met/1:1:1 and Cys:His:Met/1:2:1 accelerate dissolution at concentrations 10−2mol L−1and 10−3mol L−1. Potentiodynamic polarization measurements showed that methionine does not affect the anodic and cathodic dissolution at all concentrations, while histidine does not affect significantly on the anodic dissolution at all concentrations. Cysteine and solutions of three amino acids in the molar ratio Cys:His:Met/1:1:1 and Cys:His:Met/1:2:1 cause intensive cathodic inhibition and anodic activation at concentrations 10−2mol L−1and 10−3mol L−1respectively.", journal = "Bioelectrochemistry", title = "Electrochemical behavior of pyrite in sulfuric acid in presence of amino acids belonging to the amino acid sequence of rusticyanin", volume = "123", pages = "112-118", doi = "10.1016/j.bioelechem.2018.04.021" }
Maluckov, B. S.,& Mitrić, M.. (2018). Electrochemical behavior of pyrite in sulfuric acid in presence of amino acids belonging to the amino acid sequence of rusticyanin. in Bioelectrochemistry, 123, 112-118. https://doi.org/10.1016/j.bioelechem.2018.04.021
Maluckov BS, Mitrić M. Electrochemical behavior of pyrite in sulfuric acid in presence of amino acids belonging to the amino acid sequence of rusticyanin. in Bioelectrochemistry. 2018;123:112-118. doi:10.1016/j.bioelechem.2018.04.021 .
Maluckov, Biljana S., Mitrić, Miodrag, "Electrochemical behavior of pyrite in sulfuric acid in presence of amino acids belonging to the amino acid sequence of rusticyanin" in Bioelectrochemistry, 123 (2018):112-118, https://doi.org/10.1016/j.bioelechem.2018.04.021 . .