TY  - JOUR
AU  - Tripković, Amalija
AU  - Gojković, Snežana Lj.
AU  - Popović, Ksenija
AU  - Lović, Jelena
PY  - 2006
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/954
AB  - Methanol oxidation in acid solution was studied at platinum single crystals, Pt(hkl), as the model catalyst, and at nanostructural platinum supported on high surface area carbon, Pt/C, as the real catalyst. The linear extrapolation method was used to determine the beginning of hydroxyl anion adsorption. Structural sensitivity of the adsorption was proved and a correlation with the onset of the methanol oxidation current was established at all catalysts. Bisulfate and chloride anions were found to decrease the methanol oxidation rate, but probably did not influence the reaction parth. The specific activity for the reaction increased in the sequence Pt(110)  lt Pt/C  lt  Pt(111), suggesting that the activity of the supported Pt catalyst can be correlated with the activities of the dominating crystal planes on its surface.
AB  - Oksidacija metanola ispitivana je na niskoindeksnim Pt monokristalnim elektrodama (model katalizator) i na nanokatalizatoru Pt dispergovanom na aktivnom uglju kao nosaču (realni katalizator) u kiseloj sredini. Metoda linearne ekstrapolacije krivih zavisnosti količine naelektrisanja adsorpcije kiseoničnih čestica od potencijala korišćena je za određivanje početka adsorpcije OH anjona. Potvrđeno je da je adsorpcija OH čestica strukturno osetljiva reakcija i pokazana je korelacija sa početkom reakcije oksidacije metanola. Utvrđeno je da bisulfatni i hloridni anjoni iz nosećeg elektrolita smanjuju brzinu oksidacije metanola, ali verovatno ne utiču na reakcioni put. Elektrokatalitička aktivnost ispitivanih katalizatora rasla je u nizu Pt(110)  lt  Pt/C  lt  Pt(111) ukazujući na to da se aktivnost Pt nanokatalizatora može povezati sa udelima niskoindeksnih ravni na površini Pt nanočestice.
PB  - Serbian Chemical Society, Belgrade
T2  - Journal of the Serbian Chemical Society
T1  - Methanol oxidation at platinum electrodes in acid solution: Comparison between model and real catalysts
T1  - Oksidacija metanola na platinskim elektrodama u kiseloj sredini - poređenje model i realnih katalizatora
EP  - 1343
IS  - 12
SP  - 1333
VL  - 71
UR  - https://hdl.handle.net/21.15107/rcub_technorep_954
ER  - 

@article{
author = "Tripković, Amalija and Gojković, Snežana Lj. and Popović, Ksenija and Lović, Jelena",
year = "2006",
abstract = "Methanol oxidation in acid solution was studied at platinum single crystals, Pt(hkl), as the model catalyst, and at nanostructural platinum supported on high surface area carbon, Pt/C, as the real catalyst. The linear extrapolation method was used to determine the beginning of hydroxyl anion adsorption. Structural sensitivity of the adsorption was proved and a correlation with the onset of the methanol oxidation current was established at all catalysts. Bisulfate and chloride anions were found to decrease the methanol oxidation rate, but probably did not influence the reaction parth. The specific activity for the reaction increased in the sequence Pt(110)  lt Pt/C  lt  Pt(111), suggesting that the activity of the supported Pt catalyst can be correlated with the activities of the dominating crystal planes on its surface., Oksidacija metanola ispitivana je na niskoindeksnim Pt monokristalnim elektrodama (model katalizator) i na nanokatalizatoru Pt dispergovanom na aktivnom uglju kao nosaču (realni katalizator) u kiseloj sredini. Metoda linearne ekstrapolacije krivih zavisnosti količine naelektrisanja adsorpcije kiseoničnih čestica od potencijala korišćena je za određivanje početka adsorpcije OH anjona. Potvrđeno je da je adsorpcija OH čestica strukturno osetljiva reakcija i pokazana je korelacija sa početkom reakcije oksidacije metanola. Utvrđeno je da bisulfatni i hloridni anjoni iz nosećeg elektrolita smanjuju brzinu oksidacije metanola, ali verovatno ne utiču na reakcioni put. Elektrokatalitička aktivnost ispitivanih katalizatora rasla je u nizu Pt(110)  lt  Pt/C  lt  Pt(111) ukazujući na to da se aktivnost Pt nanokatalizatora može povezati sa udelima niskoindeksnih ravni na površini Pt nanočestice.",
publisher = "Serbian Chemical Society, Belgrade",
journal = "Journal of the Serbian Chemical Society",
title = "Methanol oxidation at platinum electrodes in acid solution: Comparison between model and real catalysts, Oksidacija metanola na platinskim elektrodama u kiseloj sredini - poređenje model i realnih katalizatora",
pages = "1343-1333",
number = "12",
volume = "71",
url = "https://hdl.handle.net/21.15107/rcub_technorep_954"
}

Tripković, A., Gojković, S. Lj., Popović, K.,& Lović, J.. (2006). Methanol oxidation at platinum electrodes in acid solution: Comparison between model and real catalysts. in Journal of the Serbian Chemical Society
Serbian Chemical Society, Belgrade., 71(12), 1333-1343.
https://hdl.handle.net/21.15107/rcub_technorep_954

Tripković A, Gojković SL, Popović K, Lović J. Methanol oxidation at platinum electrodes in acid solution: Comparison between model and real catalysts. in Journal of the Serbian Chemical Society. 2006;71(12):1333-1343.
https://hdl.handle.net/21.15107/rcub_technorep_954 .

Tripković, Amalija, Gojković, Snežana Lj., Popović, Ksenija, Lović, Jelena, "Methanol oxidation at platinum electrodes in acid solution: Comparison between model and real catalysts" in Journal of the Serbian Chemical Society, 71, no. 12 (2006):1333-1343,
https://hdl.handle.net/21.15107/rcub_technorep_954 .

TY  - JOUR
AU  - Lović, Jelena
AU  - Gojković, Snežana Lj.
AU  - Popović, Ksenija
AU  - Tripković, D. V.
AU  - Tripković, Amalija
PY  - 2006
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/987
AB  - Formic acid oxidation was studied at low-index Pt single crystals (model systems) as well as at the platinum catalyst supported on high area carbon (real catalyst) in HClO4. The Pt single crystals were characterized by LEED. The LEED patterns obtained after a mild heating of flame-annealed crystals have shown clean, well ordered unreconstructured surfaces. Pt-C supported catalyst was analyzed by AFM and STM in air and by XRD. AFM and STM images revealed the presence of Pt-C agglomerates of several tenth of nm consisting of Pt particles ranged from 2 nm to 6 nm. The electrocatalytic activity of these catalysts in formic acid oxidation increased in a sequence: Pt(100)  lt  Pt(110)  lt  Pt-C/GC  lt  Pt(111).
PB  - Trans Tech Publications Ltd, Durnten-Zurich
T2  - Recent Developments in Advanced Materials and Processes
T1  - Structural effects in electrocatalysis: Formic acid oxidation at model and real Pt catalysts
EP  - 264
SP  - 259
VL  - 518
DO  - 10.4028/www.scientific.net/MSF.518.259
ER  - 

@article{
author = "Lović, Jelena and Gojković, Snežana Lj. and Popović, Ksenija and Tripković, D. V. and Tripković, Amalija",
year = "2006",
abstract = "Formic acid oxidation was studied at low-index Pt single crystals (model systems) as well as at the platinum catalyst supported on high area carbon (real catalyst) in HClO4. The Pt single crystals were characterized by LEED. The LEED patterns obtained after a mild heating of flame-annealed crystals have shown clean, well ordered unreconstructured surfaces. Pt-C supported catalyst was analyzed by AFM and STM in air and by XRD. AFM and STM images revealed the presence of Pt-C agglomerates of several tenth of nm consisting of Pt particles ranged from 2 nm to 6 nm. The electrocatalytic activity of these catalysts in formic acid oxidation increased in a sequence: Pt(100)  lt  Pt(110)  lt  Pt-C/GC  lt  Pt(111).",
publisher = "Trans Tech Publications Ltd, Durnten-Zurich",
journal = "Recent Developments in Advanced Materials and Processes",
title = "Structural effects in electrocatalysis: Formic acid oxidation at model and real Pt catalysts",
pages = "264-259",
volume = "518",
doi = "10.4028/www.scientific.net/MSF.518.259"
}

Lović, J., Gojković, S. Lj., Popović, K., Tripković, D. V.,& Tripković, A.. (2006). Structural effects in electrocatalysis: Formic acid oxidation at model and real Pt catalysts. in Recent Developments in Advanced Materials and Processes
Trans Tech Publications Ltd, Durnten-Zurich., 518, 259-264.
https://doi.org/10.4028/www.scientific.net/MSF.518.259

Lović J, Gojković SL, Popović K, Tripković DV, Tripković A. Structural effects in electrocatalysis: Formic acid oxidation at model and real Pt catalysts. in Recent Developments in Advanced Materials and Processes. 2006;518:259-264.
doi:10.4028/www.scientific.net/MSF.518.259 .

Lović, Jelena, Gojković, Snežana Lj., Popović, Ksenija, Tripković, D. V., Tripković, Amalija, "Structural effects in electrocatalysis: Formic acid oxidation at model and real Pt catalysts" in Recent Developments in Advanced Materials and Processes, 518 (2006):259-264,
https://doi.org/10.4028/www.scientific.net/MSF.518.259 . .