Effect of electrochemical oxidation of glassy carbon on deposition of platinum particles and electrocatalytic activity of platinum supported on oxidized glassy carbon (Pt/GCOX) were studied for methanol oxidation in H2SO4 solution. Platinum was potentiostatically deposited from H2SO4 + H2PtCl6 solution. Glassy carbon was anodically polarised in 0.5 M H2SO4 at 2.25 V vs. saturated calomel electrode (SCE) during 35 s. Electrochemical treatment of GC support, affecting not significantly the real Pt surface area, 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 polycrystalline Pt and for more than one order of magnitude larger than Pt/GC electrode. This increase in activity indicates the pronounced role of organic residues of GC support on the properties of Pt particles deposited on glassy carbon.
Keywords:
Glass-like carbon / Electrochemical treatment / Catalyst support / Atomic force microscopy / Electrochemical properties
TY - JOUR
AU - Jovanović, Vladislava M.
AU - Terzić, Sanja
AU - Tripković, Amalija
AU - Popović, Ksenija
AU - Lović, Jelena
PY - 2004
UR - http://cer.ihtm.bg.ac.rs/handle/123456789/2880
AB - Effect of electrochemical oxidation of glassy carbon on deposition of platinum particles and electrocatalytic activity of platinum supported on oxidized glassy carbon (Pt/GCOX) were studied for methanol oxidation in H2SO4 solution. Platinum was potentiostatically deposited from H2SO4 + H2PtCl6 solution. Glassy carbon was anodically polarised in 0.5 M H2SO4 at 2.25 V vs. saturated calomel electrode (SCE) during 35 s. Electrochemical treatment of GC support, affecting not significantly the real Pt surface area, 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 polycrystalline Pt and for more than one order of magnitude larger than Pt/GC electrode. This increase in activity indicates the pronounced role of organic residues of GC support on the properties of Pt particles deposited on glassy carbon.
PB - Elsevier
T2 - Electrochemistry Communication
T1 - The effect of electrochemically treated glassy carbon on the activity of supported Pt catalyst in methanol oxidation
VL - 6
IS - 12
SP - 1254
EP - 1258
DO - 10.1016/j.elecom.2004.10.001
ER -
@article{
author = "Jovanović, Vladislava M. and Terzić, Sanja and Tripković, Amalija and Popović, Ksenija and Lović, Jelena",
year = "2004",
url = "http://cer.ihtm.bg.ac.rs/handle/123456789/2880",
abstract = "Effect of electrochemical oxidation of glassy carbon on deposition of platinum particles and electrocatalytic activity of platinum supported on oxidized glassy carbon (Pt/GCOX) were studied for methanol oxidation in H2SO4 solution. Platinum was potentiostatically deposited from H2SO4 + H2PtCl6 solution. Glassy carbon was anodically polarised in 0.5 M H2SO4 at 2.25 V vs. saturated calomel electrode (SCE) during 35 s. Electrochemical treatment of GC support, affecting not significantly the real Pt surface area, 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 polycrystalline Pt and for more than one order of magnitude larger than Pt/GC electrode. This increase in activity indicates the pronounced role of organic residues of GC support on the properties of Pt particles deposited on glassy carbon.",
publisher = "Elsevier",
journal = "Electrochemistry Communication",
title = "The effect of electrochemically treated glassy carbon on the activity of supported Pt catalyst in methanol oxidation",
volume = "6",
number = "12",
pages = "1254-1258",
doi = "10.1016/j.elecom.2004.10.001"
}
Jovanović, V. M., Terzić, S., Tripković, A., Popović, K.,& Lović, J. (2004). The effect of electrochemically treated glassy carbon on the activity of supported Pt catalyst in methanol oxidation.
Electrochemistry Communication
Elsevier., 6(12), 1254-1258.
https://doi.org/10.1016/j.elecom.2004.10.001
Jovanović VM, Terzić S, Tripković A, Popović K, Lović J. The effect of electrochemically treated glassy carbon on the activity of supported Pt catalyst in methanol oxidation. Electrochemistry Communication. 2004;6(12):1254-1258
Jovanović Vladislava M., Terzić Sanja, Tripković Amalija, Popović Ksenija, Lović Jelena, "The effect of electrochemically treated glassy carbon on the activity of supported Pt catalyst in methanol oxidation" Electrochemistry Communication, 6, no. 12 (2004):1254-1258,
https://doi.org/10.1016/j.elecom.2004.10.001 .
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