Tungsten electrochemistry in alkaline solutions-Anodic dissolution and oxygen reduction reaction
Abstract
Oxygen reduction reaction (ORR) was investigated in alkaline solution on tungsten electrode subjected to a previous anodic dissolution. The rotating disk cyclic voltammetry and rotating disc chronoamperometry were used. Both unsupported and potassium pechlorate and sulfate supported solutions were examined. The most striking feature of recorded ORR curves is the large difference of ORR overpotential during anodic and cathodic sweep. This was attributed to the formation of tungsten oxide on the surface. It was demonstrated that electrode pretreatment as well as the electrolyte composition greatly affects ORR electrochemistry on tungsten electrode, and the influence of sulfates is discussed.
Keywords:
tungsten electrochemistry / alkaline solutions / anodic dissolution / oxygen reduction reactionSource:
Russian Journal of Physical Chemistry A, 2011, 85, 13, 2399-2405Funding / projects:
- Lithium-ion batteries and fuel cells - research and development (RS-45014)
- SASA
DOI: 10.1134/S0036024411130322
ISSN: 0036-0244
WoS: 000297922700028
Scopus: 2-s2.0-84855206029
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VinčaTY - JOUR AU - Tuvic, T. AU - Pašti, Igor A. AU - Mentus, Slavko V. PY - 2011 UR - https://vinar.vin.bg.ac.rs/handle/123456789/4601 AB - Oxygen reduction reaction (ORR) was investigated in alkaline solution on tungsten electrode subjected to a previous anodic dissolution. The rotating disk cyclic voltammetry and rotating disc chronoamperometry were used. Both unsupported and potassium pechlorate and sulfate supported solutions were examined. The most striking feature of recorded ORR curves is the large difference of ORR overpotential during anodic and cathodic sweep. This was attributed to the formation of tungsten oxide on the surface. It was demonstrated that electrode pretreatment as well as the electrolyte composition greatly affects ORR electrochemistry on tungsten electrode, and the influence of sulfates is discussed. T2 - Russian Journal of Physical Chemistry A T1 - Tungsten electrochemistry in alkaline solutions-Anodic dissolution and oxygen reduction reaction VL - 85 IS - 13 SP - 2399 EP - 2405 DO - 10.1134/S0036024411130322 ER -
@article{ author = "Tuvic, T. and Pašti, Igor A. and Mentus, Slavko V.", year = "2011", abstract = "Oxygen reduction reaction (ORR) was investigated in alkaline solution on tungsten electrode subjected to a previous anodic dissolution. The rotating disk cyclic voltammetry and rotating disc chronoamperometry were used. Both unsupported and potassium pechlorate and sulfate supported solutions were examined. The most striking feature of recorded ORR curves is the large difference of ORR overpotential during anodic and cathodic sweep. This was attributed to the formation of tungsten oxide on the surface. It was demonstrated that electrode pretreatment as well as the electrolyte composition greatly affects ORR electrochemistry on tungsten electrode, and the influence of sulfates is discussed.", journal = "Russian Journal of Physical Chemistry A", title = "Tungsten electrochemistry in alkaline solutions-Anodic dissolution and oxygen reduction reaction", volume = "85", number = "13", pages = "2399-2405", doi = "10.1134/S0036024411130322" }
Tuvic, T., Pašti, I. A.,& Mentus, S. V.. (2011). Tungsten electrochemistry in alkaline solutions-Anodic dissolution and oxygen reduction reaction. in Russian Journal of Physical Chemistry A, 85(13), 2399-2405. https://doi.org/10.1134/S0036024411130322
Tuvic T, Pašti IA, Mentus SV. Tungsten electrochemistry in alkaline solutions-Anodic dissolution and oxygen reduction reaction. in Russian Journal of Physical Chemistry A. 2011;85(13):2399-2405. doi:10.1134/S0036024411130322 .
Tuvic, T., Pašti, Igor A., Mentus, Slavko V., "Tungsten electrochemistry in alkaline solutions-Anodic dissolution and oxygen reduction reaction" in Russian Journal of Physical Chemistry A, 85, no. 13 (2011):2399-2405, https://doi.org/10.1134/S0036024411130322 . .