Kinetic and mechanistic study of methanol oxidation on a Pt 100/ surface in alkaline media
Samo za registrovane korisnike
1998
Članak u časopisu (Objavljena verzija)
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Metapodaci
Prikaz svih podataka o dokumentuApstrakt
A comparative study of methanol oxidation on a Pt(100) surface was carried out in bicarbonate, carbonate and different pH values of sodium hydroxide solutions. It was shown that Pt(100) adsorbs OH and 'poisoning species'. The surface activity was directly correlated to the OHad species coverage. The 'poisoning species', produced in methanol oxidation, participate in the reaction at higher potentials, but block the surface partially at lower potentials. A dual path reaction mechanism, common to all the alkaline solutions used, was proposed based on the assumptions that HCO is a reactive intermediate and that a formate is a reaction product in the main path, while CO2 is a product of 'poisoning species' oxidation in a parallel reaction path.
Ključne reči:
Pt(100) electrode / methanol oxidation / alkaline solutions / OH adsorption / reaction mechanismIzvor:
Journal of Electroanalytical Chemistry, 1998, 448, 2, 173-181Izdavač:
- Elsevier
DOI: 10.1016/S0022-0728(97)00141-1
ISSN: 1572-6657; 0022-0728
WoS: 000075475600004
Scopus: 2-s2.0-0032067175
Institucija/grupa
IHTMTY - JOUR AU - Tripković, Amalija AU - Popović, Ksenija AU - Momčilović, J. D. AU - Dražić, Dragutin M. PY - 1998 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/4163 AB - A comparative study of methanol oxidation on a Pt(100) surface was carried out in bicarbonate, carbonate and different pH values of sodium hydroxide solutions. It was shown that Pt(100) adsorbs OH and 'poisoning species'. The surface activity was directly correlated to the OHad species coverage. The 'poisoning species', produced in methanol oxidation, participate in the reaction at higher potentials, but block the surface partially at lower potentials. A dual path reaction mechanism, common to all the alkaline solutions used, was proposed based on the assumptions that HCO is a reactive intermediate and that a formate is a reaction product in the main path, while CO2 is a product of 'poisoning species' oxidation in a parallel reaction path. PB - Elsevier T2 - Journal of Electroanalytical Chemistry T1 - Kinetic and mechanistic study of methanol oxidation on a Pt 100/ surface in alkaline media VL - 448 IS - 2 SP - 173 EP - 181 DO - 10.1016/S0022-0728(97)00141-1 ER -
@article{ author = "Tripković, Amalija and Popović, Ksenija and Momčilović, J. D. and Dražić, Dragutin M.", year = "1998", abstract = "A comparative study of methanol oxidation on a Pt(100) surface was carried out in bicarbonate, carbonate and different pH values of sodium hydroxide solutions. It was shown that Pt(100) adsorbs OH and 'poisoning species'. The surface activity was directly correlated to the OHad species coverage. The 'poisoning species', produced in methanol oxidation, participate in the reaction at higher potentials, but block the surface partially at lower potentials. A dual path reaction mechanism, common to all the alkaline solutions used, was proposed based on the assumptions that HCO is a reactive intermediate and that a formate is a reaction product in the main path, while CO2 is a product of 'poisoning species' oxidation in a parallel reaction path.", publisher = "Elsevier", journal = "Journal of Electroanalytical Chemistry", title = "Kinetic and mechanistic study of methanol oxidation on a Pt 100/ surface in alkaline media", volume = "448", number = "2", pages = "173-181", doi = "10.1016/S0022-0728(97)00141-1" }
Tripković, A., Popović, K., Momčilović, J. D.,& Dražić, D. M.. (1998). Kinetic and mechanistic study of methanol oxidation on a Pt 100/ surface in alkaline media. in Journal of Electroanalytical Chemistry Elsevier., 448(2), 173-181. https://doi.org/10.1016/S0022-0728(97)00141-1
Tripković A, Popović K, Momčilović JD, Dražić DM. Kinetic and mechanistic study of methanol oxidation on a Pt 100/ surface in alkaline media. in Journal of Electroanalytical Chemistry. 1998;448(2):173-181. doi:10.1016/S0022-0728(97)00141-1 .
Tripković, Amalija, Popović, Ksenija, Momčilović, J. D., Dražić, Dragutin M., "Kinetic and mechanistic study of methanol oxidation on a Pt 100/ surface in alkaline media" in Journal of Electroanalytical Chemistry, 448, no. 2 (1998):173-181, https://doi.org/10.1016/S0022-0728(97)00141-1 . .