Tailoring the morphology and electrocatalytic properties of electrochemically formed Ag/TiO2 composite deposits on titanium surfaces
Abstract
Three different forms of Ag/TiO2 composite layers, which have whisker-, dot- and island-like distribution of silver were obtained on a mechanically polished titanium surface by adjusting the conditions of silver deposition from an aqueous AgNO3 solution. The deposit morphology was the result of both the program of electrode polarization and the template action of the simultaneously formed TiO2 layer. The catalytic activity of the composite layers toward the oxygen reduction reaction was studied in aqueous 0.1 M NaOH solutions and found to be a function of both the surface loading of silver and the type of silver distribution within the Ag/TiO2 composite layers. The reaction path of oxygen reduction on the composite layers was found to be always a 4e(-) one, characteristic otherwise of polycrystalline silver electrodes.
Keywords:
metal/oxide composite electrocatalysts / oxygen reduction reaction / rotating disc electrode / silver electrodeposition / titanium dioxide filmSource:
Journal of the Serbian Chemical Society, 2007, 72, 12, 1403-1418Funding / projects:
- Struktura, termodinamičke i elektrohemijske osobine materijala za konverziju energije i nove tehnologije (RS-142047)
DOI: 10.2298/JSC0712403M
ISSN: 0352-5139
WoS: 000252412100024
Scopus: 2-s2.0-36949002985
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VinčaTY - JOUR AU - Mentus, Slavko V. AU - Bošković, Ivana V. AU - Pjescic, J. M. AU - Grudic, V. AU - Bogdanov, Žarko PY - 2007 UR - https://vinar.vin.bg.ac.rs/handle/123456789/3346 AB - Three different forms of Ag/TiO2 composite layers, which have whisker-, dot- and island-like distribution of silver were obtained on a mechanically polished titanium surface by adjusting the conditions of silver deposition from an aqueous AgNO3 solution. The deposit morphology was the result of both the program of electrode polarization and the template action of the simultaneously formed TiO2 layer. The catalytic activity of the composite layers toward the oxygen reduction reaction was studied in aqueous 0.1 M NaOH solutions and found to be a function of both the surface loading of silver and the type of silver distribution within the Ag/TiO2 composite layers. The reaction path of oxygen reduction on the composite layers was found to be always a 4e(-) one, characteristic otherwise of polycrystalline silver electrodes. T2 - Journal of the Serbian Chemical Society T1 - Tailoring the morphology and electrocatalytic properties of electrochemically formed Ag/TiO2 composite deposits on titanium surfaces VL - 72 IS - 12 SP - 1403 EP - 1418 DO - 10.2298/JSC0712403M ER -
@article{ author = "Mentus, Slavko V. and Bošković, Ivana V. and Pjescic, J. M. and Grudic, V. and Bogdanov, Žarko", year = "2007", abstract = "Three different forms of Ag/TiO2 composite layers, which have whisker-, dot- and island-like distribution of silver were obtained on a mechanically polished titanium surface by adjusting the conditions of silver deposition from an aqueous AgNO3 solution. The deposit morphology was the result of both the program of electrode polarization and the template action of the simultaneously formed TiO2 layer. The catalytic activity of the composite layers toward the oxygen reduction reaction was studied in aqueous 0.1 M NaOH solutions and found to be a function of both the surface loading of silver and the type of silver distribution within the Ag/TiO2 composite layers. The reaction path of oxygen reduction on the composite layers was found to be always a 4e(-) one, characteristic otherwise of polycrystalline silver electrodes.", journal = "Journal of the Serbian Chemical Society", title = "Tailoring the morphology and electrocatalytic properties of electrochemically formed Ag/TiO2 composite deposits on titanium surfaces", volume = "72", number = "12", pages = "1403-1418", doi = "10.2298/JSC0712403M" }
Mentus, S. V., Bošković, I. V., Pjescic, J. M., Grudic, V.,& Bogdanov, Ž.. (2007). Tailoring the morphology and electrocatalytic properties of electrochemically formed Ag/TiO2 composite deposits on titanium surfaces. in Journal of the Serbian Chemical Society, 72(12), 1403-1418. https://doi.org/10.2298/JSC0712403M
Mentus SV, Bošković IV, Pjescic JM, Grudic V, Bogdanov Ž. Tailoring the morphology and electrocatalytic properties of electrochemically formed Ag/TiO2 composite deposits on titanium surfaces. in Journal of the Serbian Chemical Society. 2007;72(12):1403-1418. doi:10.2298/JSC0712403M .
Mentus, Slavko V., Bošković, Ivana V., Pjescic, J. M., Grudic, V., Bogdanov, Žarko, "Tailoring the morphology and electrocatalytic properties of electrochemically formed Ag/TiO2 composite deposits on titanium surfaces" in Journal of the Serbian Chemical Society, 72, no. 12 (2007):1403-1418, https://doi.org/10.2298/JSC0712403M . .