Electrodeposited PdNi and Pd samples were tested for methanol and ethanol oxidation reaction (MOR and EOR) in alkaline solution using cyclic voltammetry (CV) and chronoamperometric (CA) measurements. Among the CVs for the MOR, all alloy samples showed higher current densities than pure Pd. Also the peak current densities for MOR of PdNi coatings are 5 to 8 times higher than that obtained on Pd coating depending on composition. Based on the ratio of the forward peak current to the backward peak current the tolerance of the catalysts to accumulation of carbonaceous species is determined. Besides this ratio increased with extending the anodic potential limit. The most tolerant catalyst is found to be Pd0.74Ni0.28 in methanol oxidation. Comparative study of methanol and ethanol electrooxidation in the alkaline media reveals that Pd0.74Ni0.26 alloy has a higher catalytic activity, as well as a better tolerance to accumulation of carbonaceous species.
Source:
Russian Journal of Applied Chemistry, 2017, 90, 12, 2039-2045
TY - JOUR
AU - Lović, Jelena
PY - 2017
UR - http://cer.ihtm.bg.ac.rs/handle/123456789/2201
AB - Electrodeposited PdNi and Pd samples were tested for methanol and ethanol oxidation reaction (MOR and EOR) in alkaline solution using cyclic voltammetry (CV) and chronoamperometric (CA) measurements. Among the CVs for the MOR, all alloy samples showed higher current densities than pure Pd. Also the peak current densities for MOR of PdNi coatings are 5 to 8 times higher than that obtained on Pd coating depending on composition. Based on the ratio of the forward peak current to the backward peak current the tolerance of the catalysts to accumulation of carbonaceous species is determined. Besides this ratio increased with extending the anodic potential limit. The most tolerant catalyst is found to be Pd0.74Ni0.28 in methanol oxidation. Comparative study of methanol and ethanol electrooxidation in the alkaline media reveals that Pd0.74Ni0.26 alloy has a higher catalytic activity, as well as a better tolerance to accumulation of carbonaceous species.
PB - Pleiades Publishing Inc, Moscow
T2 - Russian Journal of Applied Chemistry
T1 - Electrochemical Oxidation of Methanol and Ethanol on Electrodeposited Pd and PdNi-Coated Electrodes
VL - 90
IS - 12
SP - 2039
EP - 2045
DO - 10.1134/S1070427217120229
ER -
@article{
author = "Lović, Jelena",
year = "2017",
url = "http://cer.ihtm.bg.ac.rs/handle/123456789/2201",
abstract = "Electrodeposited PdNi and Pd samples were tested for methanol and ethanol oxidation reaction (MOR and EOR) in alkaline solution using cyclic voltammetry (CV) and chronoamperometric (CA) measurements. Among the CVs for the MOR, all alloy samples showed higher current densities than pure Pd. Also the peak current densities for MOR of PdNi coatings are 5 to 8 times higher than that obtained on Pd coating depending on composition. Based on the ratio of the forward peak current to the backward peak current the tolerance of the catalysts to accumulation of carbonaceous species is determined. Besides this ratio increased with extending the anodic potential limit. The most tolerant catalyst is found to be Pd0.74Ni0.28 in methanol oxidation. Comparative study of methanol and ethanol electrooxidation in the alkaline media reveals that Pd0.74Ni0.26 alloy has a higher catalytic activity, as well as a better tolerance to accumulation of carbonaceous species.",
publisher = "Pleiades Publishing Inc, Moscow",
journal = "Russian Journal of Applied Chemistry",
title = "Electrochemical Oxidation of Methanol and Ethanol on Electrodeposited Pd and PdNi-Coated Electrodes",
volume = "90",
number = "12",
pages = "2039-2045",
doi = "10.1134/S1070427217120229"
}
Lović, J. (2017). Electrochemical Oxidation of Methanol and Ethanol on Electrodeposited Pd and PdNi-Coated Electrodes.
Russian Journal of Applied Chemistry
Pleiades Publishing Inc, Moscow., 90(12), 2039-2045.
https://doi.org/10.1134/S1070427217120229
Lović J. Electrochemical Oxidation of Methanol and Ethanol on Electrodeposited Pd and PdNi-Coated Electrodes. Russian Journal of Applied Chemistry. 2017;90(12):2039-2045
Lović Jelena, "Electrochemical Oxidation of Methanol and Ethanol on Electrodeposited Pd and PdNi-Coated Electrodes" Russian Journal of Applied Chemistry, 90, no. 12 (2017):2039-2045,
https://doi.org/10.1134/S1070427217120229 .
