Oxygen Reduction on Au(100)-like Polycrystalline Gold Electrode in Alkaline Solution
Apstrakt
Catalytic properties of polycrystalline gold, Au(poly), were examined for the oxygen reduction reaction in alkaline solution using the rotating disc electrode technique. On electrochemically prepared Au(poly), oxygen reduction proceeds partly through 4e-reaction pathway resembling the activity of bare Au(100) in alkaline solution. Electrochemical behavior of such Au(100)-like polycrystalline gold electrode was compared with bare Au(100) surface, as well as with stepped Au(210)=Au[2(100)x(110)] and Au(533)=Au[4(111)x(100)] surfaces. It is shown that polycrystalline gold electrode behaved in a similar manner as stepped Au[n(111)x(100)] surfaces, meaning that the enrichment in (111)x(100) steps, rather than in (100) orientation is responsible for a partial 4e-reaction pathway in alkaline solution.
Ključne reči:
Au(poly) / Au(100) / AFM / RDE / oxygen reduction / alkaline solutionIzvor:
International Journal of Electrochemical Science, 2016, 11, 12, 10436-10448Izdavač:
- Esg, Belgrade
Finansiranje / projekti:
- Funkcionalni, funkcionalizovani i usavršeni nano materijali (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45005)
DOI: 10.20964/2016.12.51
ISSN: 1452-3981
WoS: 000391039000053
Scopus: 2-s2.0-85009471241
Institucija/grupa
IHTMTY - JOUR AU - Srejić, Irina AU - Smiljanić, Milutin AU - Rakočević, Zlatko Lj. AU - Štrbac, Svetlana PY - 2016 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/1907 AB - Catalytic properties of polycrystalline gold, Au(poly), were examined for the oxygen reduction reaction in alkaline solution using the rotating disc electrode technique. On electrochemically prepared Au(poly), oxygen reduction proceeds partly through 4e-reaction pathway resembling the activity of bare Au(100) in alkaline solution. Electrochemical behavior of such Au(100)-like polycrystalline gold electrode was compared with bare Au(100) surface, as well as with stepped Au(210)=Au[2(100)x(110)] and Au(533)=Au[4(111)x(100)] surfaces. It is shown that polycrystalline gold electrode behaved in a similar manner as stepped Au[n(111)x(100)] surfaces, meaning that the enrichment in (111)x(100) steps, rather than in (100) orientation is responsible for a partial 4e-reaction pathway in alkaline solution. PB - Esg, Belgrade T2 - International Journal of Electrochemical Science T1 - Oxygen Reduction on Au(100)-like Polycrystalline Gold Electrode in Alkaline Solution VL - 11 IS - 12 SP - 10436 EP - 10448 DO - 10.20964/2016.12.51 ER -
@article{ author = "Srejić, Irina and Smiljanić, Milutin and Rakočević, Zlatko Lj. and Štrbac, Svetlana", year = "2016", abstract = "Catalytic properties of polycrystalline gold, Au(poly), were examined for the oxygen reduction reaction in alkaline solution using the rotating disc electrode technique. On electrochemically prepared Au(poly), oxygen reduction proceeds partly through 4e-reaction pathway resembling the activity of bare Au(100) in alkaline solution. Electrochemical behavior of such Au(100)-like polycrystalline gold electrode was compared with bare Au(100) surface, as well as with stepped Au(210)=Au[2(100)x(110)] and Au(533)=Au[4(111)x(100)] surfaces. It is shown that polycrystalline gold electrode behaved in a similar manner as stepped Au[n(111)x(100)] surfaces, meaning that the enrichment in (111)x(100) steps, rather than in (100) orientation is responsible for a partial 4e-reaction pathway in alkaline solution.", publisher = "Esg, Belgrade", journal = "International Journal of Electrochemical Science", title = "Oxygen Reduction on Au(100)-like Polycrystalline Gold Electrode in Alkaline Solution", volume = "11", number = "12", pages = "10436-10448", doi = "10.20964/2016.12.51" }
Srejić, I., Smiljanić, M., Rakočević, Z. Lj.,& Štrbac, S.. (2016). Oxygen Reduction on Au(100)-like Polycrystalline Gold Electrode in Alkaline Solution. in International Journal of Electrochemical Science Esg, Belgrade., 11(12), 10436-10448. https://doi.org/10.20964/2016.12.51
Srejić I, Smiljanić M, Rakočević ZL, Štrbac S. Oxygen Reduction on Au(100)-like Polycrystalline Gold Electrode in Alkaline Solution. in International Journal of Electrochemical Science. 2016;11(12):10436-10448. doi:10.20964/2016.12.51 .
Srejić, Irina, Smiljanić, Milutin, Rakočević, Zlatko Lj., Štrbac, Svetlana, "Oxygen Reduction on Au(100)-like Polycrystalline Gold Electrode in Alkaline Solution" in International Journal of Electrochemical Science, 11, no. 12 (2016):10436-10448, https://doi.org/10.20964/2016.12.51 . .