The underpotential deposition of hydrogen was studied in 0.5 mol dm(-3) HClO4 solution on an electrode based on Ebonex-supported platinum electrocatalyst spread on rotation Au disk electrode (Ebonex/Pt). Pt catalyst was prepared by the impregnation method from 2-propanol solution of Pt(NH3)(2)(NO2)(2) and Ebonex powder. Ebonex support (nonstoichiometric mixture of titanium oxides) was characterized by: X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDX) and BET techniques. The synthesized catalyst was analyzed by TEM technique. Voltammetric profiles at the Ebonex/Pt catalyst surface in 0.5 mol dm(-3) HClO4 aqueous solution obtained at different temperatures with the evaluation of the temperature effect on the reversible adsorption of the H-upd state are presented and the thermodynamic state functions for H adatom adsorption process are calculated. The chemisorptive energy strength of the Ebonex/Pt-H state is estimated in order to establish the relationship between the s...urface structure and the electrocatalytic activity of Ebonex/Pt electrode and compare it to the one for smooth polycrystalline Pt.
TY - JOUR
AU - Vračar, Ljiljana M
AU - Krstajić, Nedeljko V
AU - Elezović, Nevenka R.
PY - 2006
UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/156
AB - The underpotential deposition of hydrogen was studied in 0.5 mol dm(-3) HClO4 solution on an electrode based on Ebonex-supported platinum electrocatalyst spread on rotation Au disk electrode (Ebonex/Pt). Pt catalyst was prepared by the impregnation method from 2-propanol solution of Pt(NH3)(2)(NO2)(2) and Ebonex powder. Ebonex support (nonstoichiometric mixture of titanium oxides) was characterized by: X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDX) and BET techniques. The synthesized catalyst was analyzed by TEM technique. Voltammetric profiles at the Ebonex/Pt catalyst surface in 0.5 mol dm(-3) HClO4 aqueous solution obtained at different temperatures with the evaluation of the temperature effect on the reversible adsorption of the H-upd state are presented and the thermodynamic state functions for H adatom adsorption process are calculated. The chemisorptive energy strength of the Ebonex/Pt-H state is estimated in order to establish the relationship between the surface structure and the electrocatalytic activity of Ebonex/Pt electrode and compare it to the one for smooth polycrystalline Pt.
PB - Trans Tech Publications Ltd
T2 - Materials Science Forum
T1 - Electrocatalytic activity of nano-sized Ebonex/Pt for underpotential deposition of hydrogen
EP - 258
SP - 253
VL - 518
DO - 10.4028/www.scientific.net/msf.518.253
ER -
@article{
author = "Vračar, Ljiljana M and Krstajić, Nedeljko V and Elezović, Nevenka R.",
year = "2006",
abstract = "The underpotential deposition of hydrogen was studied in 0.5 mol dm(-3) HClO4 solution on an electrode based on Ebonex-supported platinum electrocatalyst spread on rotation Au disk electrode (Ebonex/Pt). Pt catalyst was prepared by the impregnation method from 2-propanol solution of Pt(NH3)(2)(NO2)(2) and Ebonex powder. Ebonex support (nonstoichiometric mixture of titanium oxides) was characterized by: X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDX) and BET techniques. The synthesized catalyst was analyzed by TEM technique. Voltammetric profiles at the Ebonex/Pt catalyst surface in 0.5 mol dm(-3) HClO4 aqueous solution obtained at different temperatures with the evaluation of the temperature effect on the reversible adsorption of the H-upd state are presented and the thermodynamic state functions for H adatom adsorption process are calculated. The chemisorptive energy strength of the Ebonex/Pt-H state is estimated in order to establish the relationship between the surface structure and the electrocatalytic activity of Ebonex/Pt electrode and compare it to the one for smooth polycrystalline Pt.",
publisher = "Trans Tech Publications Ltd",
journal = "Materials Science Forum",
title = "Electrocatalytic activity of nano-sized Ebonex/Pt for underpotential deposition of hydrogen",
pages = "258-253",
volume = "518",
doi = "10.4028/www.scientific.net/msf.518.253"
}
Vračar, L. M., Krstajić, N. V.,& Elezović, N. R.. (2006). Electrocatalytic activity of nano-sized Ebonex/Pt for underpotential deposition of hydrogen. in Materials Science Forum
Trans Tech Publications Ltd., 518, 253-258.
https://doi.org/10.4028/www.scientific.net/msf.518.253
Vračar LM, Krstajić NV, Elezović NR. Electrocatalytic activity of nano-sized Ebonex/Pt for underpotential deposition of hydrogen. in Materials Science Forum. 2006;518:253-258.
doi:10.4028/www.scientific.net/msf.518.253 .
Vračar, Ljiljana M, Krstajić, Nedeljko V, Elezović, Nevenka R., "Electrocatalytic activity of nano-sized Ebonex/Pt for underpotential deposition of hydrogen" in Materials Science Forum, 518 (2006):253-258,
https://doi.org/10.4028/www.scientific.net/msf.518.253 . .
