Oxidation of formic acid on platinum electrodeposited on polished and oxidized glassy carbon
Samo za registrovane korisnike
2005
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Metapodaci
Prikaz svih podataka o dokumentuApstrakt
Formic acid oxidation at platinum electrochemically deposited on polished (GC/Pt) and oxidized glassy carbon (GC(ox)/Pt) was examined with the objective of studying the effect of electrochemical treatment of the support on deposition of platinum and on the activity of Pt catalyst. The electrodes were characterised by STM and XPS techniques. The oxidative treatment of the support leads to deposition of smaller Pt particles in comparison with the one on the polished substrate. The XPS spectra indicated the increased fraction of functional (acidic) groups on the treated support as well as the higher fraction of oxygen containing species on Pt catalyst deposited on oxidised referring to Pt deposited on polished substrate. The activity of GC(ox)/Pt electrode is increased by the factor of 2-4 for formic acid oxidation compared to the activity of GC/Pt electrode. This result is explained by the oxidative removal Of COad species leading to enhanced amount of Pt free sites available for direct ...formic acid oxidation to CO2.
Ključne reči:
glassy carbon / electrochemical treatment / catalytic activity / scanning tunneling microscopy / X-ray photoelectron spectroscopyIzvor:
Electrochemistry Communications, 2005, 7, 10, 1039-1044Izdavač:
- Elsevier
DOI: 10.1016/j.elecom.2005.07.009
ISSN: 1388-2481
WoS: 000232392600012
Scopus: 2-s2.0-25444519791
Institucija/grupa
IHTMTY - JOUR AU - Jovanović, Vladislava M. AU - Tripković, Dušan AU - Tripković, Amalija AU - Kowal, Andrzej AU - Stoch, Jerzy PY - 2005 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/185 AB - Formic acid oxidation at platinum electrochemically deposited on polished (GC/Pt) and oxidized glassy carbon (GC(ox)/Pt) was examined with the objective of studying the effect of electrochemical treatment of the support on deposition of platinum and on the activity of Pt catalyst. The electrodes were characterised by STM and XPS techniques. The oxidative treatment of the support leads to deposition of smaller Pt particles in comparison with the one on the polished substrate. The XPS spectra indicated the increased fraction of functional (acidic) groups on the treated support as well as the higher fraction of oxygen containing species on Pt catalyst deposited on oxidised referring to Pt deposited on polished substrate. The activity of GC(ox)/Pt electrode is increased by the factor of 2-4 for formic acid oxidation compared to the activity of GC/Pt electrode. This result is explained by the oxidative removal Of COad species leading to enhanced amount of Pt free sites available for direct formic acid oxidation to CO2. PB - Elsevier T2 - Electrochemistry Communications T1 - Oxidation of formic acid on platinum electrodeposited on polished and oxidized glassy carbon VL - 7 IS - 10 SP - 1039 EP - 1044 DO - 10.1016/j.elecom.2005.07.009 ER -
@article{ author = "Jovanović, Vladislava M. and Tripković, Dušan and Tripković, Amalija and Kowal, Andrzej and Stoch, Jerzy", year = "2005", abstract = "Formic acid oxidation at platinum electrochemically deposited on polished (GC/Pt) and oxidized glassy carbon (GC(ox)/Pt) was examined with the objective of studying the effect of electrochemical treatment of the support on deposition of platinum and on the activity of Pt catalyst. The electrodes were characterised by STM and XPS techniques. The oxidative treatment of the support leads to deposition of smaller Pt particles in comparison with the one on the polished substrate. The XPS spectra indicated the increased fraction of functional (acidic) groups on the treated support as well as the higher fraction of oxygen containing species on Pt catalyst deposited on oxidised referring to Pt deposited on polished substrate. The activity of GC(ox)/Pt electrode is increased by the factor of 2-4 for formic acid oxidation compared to the activity of GC/Pt electrode. This result is explained by the oxidative removal Of COad species leading to enhanced amount of Pt free sites available for direct formic acid oxidation to CO2.", publisher = "Elsevier", journal = "Electrochemistry Communications", title = "Oxidation of formic acid on platinum electrodeposited on polished and oxidized glassy carbon", volume = "7", number = "10", pages = "1039-1044", doi = "10.1016/j.elecom.2005.07.009" }
Jovanović, V. M., Tripković, D., Tripković, A., Kowal, A.,& Stoch, J.. (2005). Oxidation of formic acid on platinum electrodeposited on polished and oxidized glassy carbon. in Electrochemistry Communications Elsevier., 7(10), 1039-1044. https://doi.org/10.1016/j.elecom.2005.07.009
Jovanović VM, Tripković D, Tripković A, Kowal A, Stoch J. Oxidation of formic acid on platinum electrodeposited on polished and oxidized glassy carbon. in Electrochemistry Communications. 2005;7(10):1039-1044. doi:10.1016/j.elecom.2005.07.009 .
Jovanović, Vladislava M., Tripković, Dušan, Tripković, Amalija, Kowal, Andrzej, Stoch, Jerzy, "Oxidation of formic acid on platinum electrodeposited on polished and oxidized glassy carbon" in Electrochemistry Communications, 7, no. 10 (2005):1039-1044, https://doi.org/10.1016/j.elecom.2005.07.009 . .