The effect of the electrochemical oxidation of glassy carbon on the deposition of platinum particles and the electrocatalytic activity of platinum supported on oxidized glassy carbon were studied for methanol oxidation in H2SO4 solution. Platinum was potentiostatically deposited from H2SO4 + 6mM H2PtCl6 solution. Glassy carbon was anodically polarized in 1 M NaOH at 1.41 V (SCE) for 35 and 95 s and in 0.5 M H2SO4 at 2V (SCE) for 35; 95 s and 2.25 V for 35 and 95 s. Electrochemical treatment of the GC support leads to a better distribution of platinum on the substrate and has remarkable effect on the activity. The activity of the Pt/GCox electrode for methanol oxidation is larger than that of polycrystalline Pt and by more than one order of magnitude larger than that of a Pt/GC electrode. This increase in activity indicates the pronounced role of the organic residues of the GC support on the properties of Pt particles deposited on glassy carbon.
Katalizatori dobijeni nanošenjem platine na karbon razvijene površine ispituju se već duži niz godina zbog njihove potencijalne primene u gorivim spregovima. Efekat elektrohemijske oksidacije staklastog ugljenika na depoziciju platinskih čestica i elektrokatalitičku aktivnost platine deponovane na oksidovani staklasti ugljenik je ispitivan za reakciju oksidacije metanola u H2SO4 i NaOH rastvoru. Platina je deponovana potenciostatskom pulsnom metodom iz 0,5M H2SO4+6mM H2PtCl6, rastvora. Staklasti ugljenik je anodno polarizovan u alkalnoj sredini (1 M NaOH na 1,41V (ZKE) u toku 35 i 95s) i kiseloj sredini (0,5M H2SO4 na 2 V (ZKE) u toku 35; 95s i 2,25V u toku 35 i 95 s). Elektrohemijski tretman GC podloge vodi ka boljoj distribuciji platine i pokazuje značajno veliki uticaj na aktivnost. Aktivnost GCox/Pt elektrode anodno oksidovane pri 2,25 V u toku 35 s je veća odpolikristalne platine a za red veličine veća od GC/Pt elektrode. Povećanje aktivnosti posledica je izraženog uticaja organsk...ih vrsta na GC podlozi na osobine platinskih čestica deponovanih na staklasti ugljenik.
TY - JOUR
AU - Terzić, Sanja
AU - Jovanović, Vladislava M.
AU - Tripković, Dušan
AU - Kowal, Andrzej
AU - Stoch, Jerzy
PY - 2007
UR - https://cer.ihtm.bg.ac.rs/handle/123456789/329
AB - The effect of the electrochemical oxidation of glassy carbon on the deposition of platinum particles and the electrocatalytic activity of platinum supported on oxidized glassy carbon were studied for methanol oxidation in H2SO4 solution. Platinum was potentiostatically deposited from H2SO4 + 6mM H2PtCl6 solution. Glassy carbon was anodically polarized in 1 M NaOH at 1.41 V (SCE) for 35 and 95 s and in 0.5 M H2SO4 at 2V (SCE) for 35; 95 s and 2.25 V for 35 and 95 s. Electrochemical treatment of the GC support leads to a better distribution of platinum on the substrate and has remarkable effect on the activity. The activity of the Pt/GCox electrode for methanol oxidation is larger than that of polycrystalline Pt and by more than one order of magnitude larger than that of a Pt/GC electrode. This increase in activity indicates the pronounced role of the organic residues of the GC support on the properties of Pt particles deposited on glassy carbon.
AB - Katalizatori dobijeni nanošenjem platine na karbon razvijene površine ispituju se već duži niz godina zbog njihove potencijalne primene u gorivim spregovima. Efekat elektrohemijske oksidacije staklastog ugljenika na depoziciju platinskih čestica i elektrokatalitičku aktivnost platine deponovane na oksidovani staklasti ugljenik je ispitivan za reakciju oksidacije metanola u H2SO4 i NaOH rastvoru. Platina je deponovana potenciostatskom pulsnom metodom iz 0,5M H2SO4+6mM H2PtCl6, rastvora. Staklasti ugljenik je anodno polarizovan u alkalnoj sredini (1 M NaOH na 1,41V (ZKE) u toku 35 i 95s) i kiseloj sredini (0,5M H2SO4 na 2 V (ZKE) u toku 35; 95s i 2,25V u toku 35 i 95 s). Elektrohemijski tretman GC podloge vodi ka boljoj distribuciji platine i pokazuje značajno veliki uticaj na aktivnost. Aktivnost GCox/Pt elektrode anodno oksidovane pri 2,25 V u toku 35 s je veća odpolikristalne platine a za red veličine veća od GC/Pt elektrode. Povećanje aktivnosti posledica je izraženog uticaja organskih vrsta na GC podlozi na osobine platinskih čestica deponovanih na staklasti ugljenik.
PB - Association of Chemical Engineers of Serbia
T2 - Hemijska industrija
T1 - Electrochemical and microstructural characterization of platinum supported on glassy carbon
T1 - Elektrohemijska, mikroskopska i spektroskopska karakterizacija platine nataložene na staklasti ugljenik
VL - 61
IS - 3
SP - 135
EP - 141
DO - 10.2298/HEMIND0703135T
ER -
@article{
author = "Terzić, Sanja and Jovanović, Vladislava M. and Tripković, Dušan and Kowal, Andrzej and Stoch, Jerzy",
year = "2007",
abstract = "The effect of the electrochemical oxidation of glassy carbon on the deposition of platinum particles and the electrocatalytic activity of platinum supported on oxidized glassy carbon were studied for methanol oxidation in H2SO4 solution. Platinum was potentiostatically deposited from H2SO4 + 6mM H2PtCl6 solution. Glassy carbon was anodically polarized in 1 M NaOH at 1.41 V (SCE) for 35 and 95 s and in 0.5 M H2SO4 at 2V (SCE) for 35; 95 s and 2.25 V for 35 and 95 s. Electrochemical treatment of the GC support leads to a better distribution of platinum on the substrate and has remarkable effect on the activity. The activity of the Pt/GCox electrode for methanol oxidation is larger than that of polycrystalline Pt and by more than one order of magnitude larger than that of a Pt/GC electrode. This increase in activity indicates the pronounced role of the organic residues of the GC support on the properties of Pt particles deposited on glassy carbon., Katalizatori dobijeni nanošenjem platine na karbon razvijene površine ispituju se već duži niz godina zbog njihove potencijalne primene u gorivim spregovima. Efekat elektrohemijske oksidacije staklastog ugljenika na depoziciju platinskih čestica i elektrokatalitičku aktivnost platine deponovane na oksidovani staklasti ugljenik je ispitivan za reakciju oksidacije metanola u H2SO4 i NaOH rastvoru. Platina je deponovana potenciostatskom pulsnom metodom iz 0,5M H2SO4+6mM H2PtCl6, rastvora. Staklasti ugljenik je anodno polarizovan u alkalnoj sredini (1 M NaOH na 1,41V (ZKE) u toku 35 i 95s) i kiseloj sredini (0,5M H2SO4 na 2 V (ZKE) u toku 35; 95s i 2,25V u toku 35 i 95 s). Elektrohemijski tretman GC podloge vodi ka boljoj distribuciji platine i pokazuje značajno veliki uticaj na aktivnost. Aktivnost GCox/Pt elektrode anodno oksidovane pri 2,25 V u toku 35 s je veća odpolikristalne platine a za red veličine veća od GC/Pt elektrode. Povećanje aktivnosti posledica je izraženog uticaja organskih vrsta na GC podlozi na osobine platinskih čestica deponovanih na staklasti ugljenik.",
publisher = "Association of Chemical Engineers of Serbia",
journal = "Hemijska industrija",
title = "Electrochemical and microstructural characterization of platinum supported on glassy carbon, Elektrohemijska, mikroskopska i spektroskopska karakterizacija platine nataložene na staklasti ugljenik",
volume = "61",
number = "3",
pages = "135-141",
doi = "10.2298/HEMIND0703135T"
}
Terzić, S., Jovanović, V. M., Tripković, D., Kowal, A.,& Stoch, J.. (2007). Electrochemical and microstructural characterization of platinum supported on glassy carbon. in Hemijska industrija
Association of Chemical Engineers of Serbia., 61(3), 135-141.
https://doi.org/10.2298/HEMIND0703135T
Terzić S, Jovanović VM, Tripković D, Kowal A, Stoch J. Electrochemical and microstructural characterization of platinum supported on glassy carbon. in Hemijska industrija. 2007;61(3):135-141.
doi:10.2298/HEMIND0703135T .
Terzić, Sanja, Jovanović, Vladislava M., Tripković, Dušan, Kowal, Andrzej, Stoch, Jerzy, "Electrochemical and microstructural characterization of platinum supported on glassy carbon" in Hemijska industrija, 61, no. 3 (2007):135-141,
https://doi.org/10.2298/HEMIND0703135T . .
