Pd black was modified by a very low amount of Pt corresponding to a sub-monolayer (ML). Spontaneous displacement method was employed. The catalysts with 0.02-0.12 ML were characterized by cyclic voltammetry and COads stripping and were tested for HCOOH oxidation under the potentiodynamic and potentiostatic conditions. All the Pt"Pd catalysts were more active for HCOOH oxidation than Pd black. The Pt"Pd with 0.08 ML of Pt exhibited the highest activity with the maximum current density under the potentiodynamic conditions of 8 mA cm(-2) (vs. 2.7 mA cm(-2) on Pd black). Contrasting HCOOH oxidation kinetics on Pt"Pd and Pt"Au catalysts revealed that the current densities are higher, and the poisoning rate is lower on Pt"Pd catalyst. This was ascribed to an optimal strength of the Pt-adsorbate bond when Pt is supported on Pd and to a possible influence of the Pt atoms on the Pd substrate.
TY - JOUR
AU - Obradović, Maja
AU - Gojković, Snežana Lj.
PY - 2014
UR - https://cer.ihtm.bg.ac.rs/handle/123456789/1420
AB - Pd black was modified by a very low amount of Pt corresponding to a sub-monolayer (ML). Spontaneous displacement method was employed. The catalysts with 0.02-0.12 ML were characterized by cyclic voltammetry and COads stripping and were tested for HCOOH oxidation under the potentiodynamic and potentiostatic conditions. All the Pt"Pd catalysts were more active for HCOOH oxidation than Pd black. The Pt"Pd with 0.08 ML of Pt exhibited the highest activity with the maximum current density under the potentiodynamic conditions of 8 mA cm(-2) (vs. 2.7 mA cm(-2) on Pd black). Contrasting HCOOH oxidation kinetics on Pt"Pd and Pt"Au catalysts revealed that the current densities are higher, and the poisoning rate is lower on Pt"Pd catalyst. This was ascribed to an optimal strength of the Pt-adsorbate bond when Pt is supported on Pd and to a possible influence of the Pt atoms on the Pd substrate.
PB - Springer, New York
T2 - Journal of Solid State Electrochemistry
T1 - Pd black decorated by Pt sub-monolayers as an electrocatalyst for the HCOOH oxidation
VL - 18
IS - 9
SP - 2599
EP - 2607
DO - 10.1007/s10008-014-2509-9
ER -
@article{
author = "Obradović, Maja and Gojković, Snežana Lj.",
year = "2014",
abstract = "Pd black was modified by a very low amount of Pt corresponding to a sub-monolayer (ML). Spontaneous displacement method was employed. The catalysts with 0.02-0.12 ML were characterized by cyclic voltammetry and COads stripping and were tested for HCOOH oxidation under the potentiodynamic and potentiostatic conditions. All the Pt"Pd catalysts were more active for HCOOH oxidation than Pd black. The Pt"Pd with 0.08 ML of Pt exhibited the highest activity with the maximum current density under the potentiodynamic conditions of 8 mA cm(-2) (vs. 2.7 mA cm(-2) on Pd black). Contrasting HCOOH oxidation kinetics on Pt"Pd and Pt"Au catalysts revealed that the current densities are higher, and the poisoning rate is lower on Pt"Pd catalyst. This was ascribed to an optimal strength of the Pt-adsorbate bond when Pt is supported on Pd and to a possible influence of the Pt atoms on the Pd substrate.",
publisher = "Springer, New York",
journal = "Journal of Solid State Electrochemistry",
title = "Pd black decorated by Pt sub-monolayers as an electrocatalyst for the HCOOH oxidation",
volume = "18",
number = "9",
pages = "2599-2607",
doi = "10.1007/s10008-014-2509-9"
}
Obradović, M.,& Gojković, S. Lj.. (2014). Pd black decorated by Pt sub-monolayers as an electrocatalyst for the HCOOH oxidation. in Journal of Solid State Electrochemistry
Springer, New York., 18(9), 2599-2607.
https://doi.org/10.1007/s10008-014-2509-9
Obradović M, Gojković SL. Pd black decorated by Pt sub-monolayers as an electrocatalyst for the HCOOH oxidation. in Journal of Solid State Electrochemistry. 2014;18(9):2599-2607.
doi:10.1007/s10008-014-2509-9 .
Obradović, Maja, Gojković, Snežana Lj., "Pd black decorated by Pt sub-monolayers as an electrocatalyst for the HCOOH oxidation" in Journal of Solid State Electrochemistry, 18, no. 9 (2014):2599-2607,
https://doi.org/10.1007/s10008-014-2509-9 . .
