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Mixtures of methanol and 2-propanol as a potential fuel for direct alcohol fuel cells

Smeša metanola i 2-propanola kao potencijalno gorivo u gorivim spregovima sa alkoholom

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2007
0352-51390712419G.pdf (131.6Kb)
Authors
Gojković, Snežana Lj.
Tripković, Amalija
Stevanović, Rade M.
Article (Published version)
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Abstract
The electrochemical oxidation of methanol, 2-propanol, and their mixtures was investigated on a Pt/C thin film electrode in acid solution. It was confirmed that the oxidation of 2-propanol commences at less positive potentials than that of methanol and exhibits significantly higher oxidation current densities at low potentials. When both methanol and 2-propanol were present in the solution, the onset of the oxidation current was the same as for the oxidation of pure 2-propanol. Although both alcohols inhibit the oxidation reaction of each other to a certain extent, steady-state polarization measurements showed that their mixture provides higher current densities than single alcohols over the entire potential region from the hydrogen region to oxide formation on the Pt surface. This implies that the addition of 2-propanol into the fuel may extend the operational range of direct methanol fuel cells.
Isptivana je elektrohemijska oksidacija metanola, 2-propanola i njihovih smeša na tankom filmu Pt/C katalizatora u kiseloj sredini. Potvrđeno je da oksidacija 2-propanola počinje na manje pozitivnim potencijalima nego oksidacija metanola i da daje znatno veće gustine struja pri nižim potencijalima. Kada su i metanol i 2-propanol prisutni u rastvoru, struja oksidacije se pojavljuje na istom potencijalu kao u slučaju čistog 2-propanola. Mada oba alkohola inhibiraju oksidaciju onog drugog u izvesnoj meri, stacionarma merenja su pokazala da njihova smeša daje veće gustine struja od pojedinačnih alkohola u celoj oblasti potencijala od vodonične oblasti pa do formiranja oksida na platini. To ukazuje da se radni opseg gorivog sprega sa metanolom može povećati dodatkom 2-propanola u gorivo.
Keywords:
electrochemical oxidation / 2-propanol / methanol / platinum supported catalyst / fuel cell
Source:
Journal of the Serbian Chemical Society, 2007, 72, 12, 1419-1425
Publisher:
  • Serbian Chemical Society, Belgrade
Funding / projects:
  • Novi materijali za primenu u gorivim spregovima sa polimernom membranom (RS-142056)

ISSN: 0352-5139

WoS: 000252412100025

Scopus: 2-s2.0-37449024322
[ Google Scholar ]
15
13
Handle
https://hdl.handle.net/21.15107/rcub_technorep_1108
URI
http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1108
Collections
  • Radovi istraživača / Researchers’ publications (TMF)
Institution/Community
Tehnološko-metalurški fakultet
TY  - JOUR
AU  - Gojković, Snežana Lj.
AU  - Tripković, Amalija
AU  - Stevanović, Rade M.
PY  - 2007
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1108
AB  - The electrochemical oxidation of methanol, 2-propanol, and their mixtures was investigated on a Pt/C thin film electrode in acid solution. It was confirmed that the oxidation of 2-propanol commences at less positive potentials than that of methanol and exhibits significantly higher oxidation current densities at low potentials. When both methanol and 2-propanol were present in the solution, the onset of the oxidation current was the same as for the oxidation of pure 2-propanol. Although both alcohols inhibit the oxidation reaction of each other to a certain extent, steady-state polarization measurements showed that their mixture provides higher current densities than single alcohols over the entire potential region from the hydrogen region to oxide formation on the Pt surface. This implies that the addition of 2-propanol into the fuel may extend the operational range of direct methanol fuel cells.
AB  - Isptivana je elektrohemijska oksidacija metanola, 2-propanola i njihovih smeša na tankom filmu Pt/C katalizatora u kiseloj sredini. Potvrđeno je da oksidacija 2-propanola počinje na manje pozitivnim potencijalima nego oksidacija metanola i da daje znatno veće gustine struja pri nižim potencijalima. Kada su i metanol i 2-propanol prisutni u rastvoru, struja oksidacije se pojavljuje na istom potencijalu kao u slučaju čistog 2-propanola. Mada oba alkohola inhibiraju oksidaciju onog drugog u izvesnoj meri, stacionarma merenja su pokazala da njihova smeša daje veće gustine struja od pojedinačnih alkohola u celoj oblasti potencijala od vodonične oblasti pa do formiranja oksida na platini. To ukazuje da se radni opseg gorivog sprega sa metanolom može povećati dodatkom 2-propanola u gorivo.
PB  - Serbian Chemical Society, Belgrade
T2  - Journal of the Serbian Chemical Society
T1  - Mixtures of methanol and 2-propanol as a potential fuel for direct alcohol fuel cells
T1  - Smeša metanola i 2-propanola kao potencijalno gorivo u gorivim spregovima sa alkoholom
EP  - 1425
IS  - 12
SP  - 1419
VL  - 72
UR  - https://hdl.handle.net/21.15107/rcub_technorep_1108
ER  - 
@article{
author = "Gojković, Snežana Lj. and Tripković, Amalija and Stevanović, Rade M.",
year = "2007",
abstract = "The electrochemical oxidation of methanol, 2-propanol, and their mixtures was investigated on a Pt/C thin film electrode in acid solution. It was confirmed that the oxidation of 2-propanol commences at less positive potentials than that of methanol and exhibits significantly higher oxidation current densities at low potentials. When both methanol and 2-propanol were present in the solution, the onset of the oxidation current was the same as for the oxidation of pure 2-propanol. Although both alcohols inhibit the oxidation reaction of each other to a certain extent, steady-state polarization measurements showed that their mixture provides higher current densities than single alcohols over the entire potential region from the hydrogen region to oxide formation on the Pt surface. This implies that the addition of 2-propanol into the fuel may extend the operational range of direct methanol fuel cells., Isptivana je elektrohemijska oksidacija metanola, 2-propanola i njihovih smeša na tankom filmu Pt/C katalizatora u kiseloj sredini. Potvrđeno je da oksidacija 2-propanola počinje na manje pozitivnim potencijalima nego oksidacija metanola i da daje znatno veće gustine struja pri nižim potencijalima. Kada su i metanol i 2-propanol prisutni u rastvoru, struja oksidacije se pojavljuje na istom potencijalu kao u slučaju čistog 2-propanola. Mada oba alkohola inhibiraju oksidaciju onog drugog u izvesnoj meri, stacionarma merenja su pokazala da njihova smeša daje veće gustine struja od pojedinačnih alkohola u celoj oblasti potencijala od vodonične oblasti pa do formiranja oksida na platini. To ukazuje da se radni opseg gorivog sprega sa metanolom može povećati dodatkom 2-propanola u gorivo.",
publisher = "Serbian Chemical Society, Belgrade",
journal = "Journal of the Serbian Chemical Society",
title = "Mixtures of methanol and 2-propanol as a potential fuel for direct alcohol fuel cells, Smeša metanola i 2-propanola kao potencijalno gorivo u gorivim spregovima sa alkoholom",
pages = "1425-1419",
number = "12",
volume = "72",
url = "https://hdl.handle.net/21.15107/rcub_technorep_1108"
}
Gojković, S. Lj., Tripković, A.,& Stevanović, R. M.. (2007). Mixtures of methanol and 2-propanol as a potential fuel for direct alcohol fuel cells. in Journal of the Serbian Chemical Society
Serbian Chemical Society, Belgrade., 72(12), 1419-1425.
https://hdl.handle.net/21.15107/rcub_technorep_1108
Gojković SL, Tripković A, Stevanović RM. Mixtures of methanol and 2-propanol as a potential fuel for direct alcohol fuel cells. in Journal of the Serbian Chemical Society. 2007;72(12):1419-1425.
https://hdl.handle.net/21.15107/rcub_technorep_1108 .
Gojković, Snežana Lj., Tripković, Amalija, Stevanović, Rade M., "Mixtures of methanol and 2-propanol as a potential fuel for direct alcohol fuel cells" in Journal of the Serbian Chemical Society, 72, no. 12 (2007):1419-1425,
https://hdl.handle.net/21.15107/rcub_technorep_1108 .

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