Kinetics of hydrogen evolution reaction on nickel modified by spontaneous Ru deposition: A rotating disk electrode and impedance spectroscopy approach

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The kinetics of hydrogen evolution reaction (HER) was studied on nickel catalysts prepared using a ruthenium spontaneous deposition method. Rotating disk electrode (RDE) and electrochemical impedance spectroscopy (EIS) were used for electrochemical characterization, and the results of the analysis w...

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Autores principales:	Franceschini, E.A., Lacconi, G.I., Corti, H.R.
Formato:	INPR
Materias:	Hydrogen generation Impedance spectroscopy Nickel/ruthenium Rotating disk electrode Spontaneous deposition Catalyst activity Catalysts Deposition Electrochemical electrodes Electrochemical impedance spectroscopy Electrodes Hydrogen production Kinetics Nickel Reaction kinetics Ruthenium Spectroscopy Spectrum analysis Electrocatalytic activity Electrochemical characterizations Hydrogen evolution reactions Hydrogen generations Kinetic and thermodynamic parameters Rotating disk electrodes Rotating disks
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_03603199_v_n_p_Franceschini
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_03603199_v_n_p_Franceschini
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spelling	todo:paper_03603199_v_n_p_Franceschini2023-10-03T15:26:32Z Kinetics of hydrogen evolution reaction on nickel modified by spontaneous Ru deposition: A rotating disk electrode and impedance spectroscopy approach Franceschini, E.A. Lacconi, G.I. Corti, H.R. Hydrogen generation Impedance spectroscopy Nickel/ruthenium Rotating disk electrode Spontaneous deposition Catalyst activity Catalysts Deposition Electrochemical electrodes Electrochemical impedance spectroscopy Electrodes Hydrogen production Kinetics Nickel Reaction kinetics Ruthenium Spectroscopy Spectrum analysis Electrocatalytic activity Electrochemical characterizations Hydrogen evolution reactions Hydrogen generations Impedance spectroscopy Kinetic and thermodynamic parameters Rotating disk electrodes Spontaneous deposition Rotating disks The kinetics of hydrogen evolution reaction (HER) was studied on nickel catalysts prepared using a ruthenium spontaneous deposition method. Rotating disk electrode (RDE) and electrochemical impedance spectroscopy (EIS) were used for electrochemical characterization, and the results of the analysis were compared with pure nickel catalysts. Three different deposition times were used to obtain different ruthenium loads and to analyze their impact on the electrocatalytic activity. Kinetic and thermodynamic parameters of the reaction were obtained for freshly synthesized catalysts, and also for catalysts aged using a short chronoamperometric procedure. The presence of ruthenium was found to shift the reaction onset potential up to about 160 mV to lower overpotentials comparing with pure nickel, which not increases after ageing, showing a substantial improvement in catalytic activity. Results of Tafel and Koutecky-Levich (K-L) analysis have shown that the HER rate determining step is the Volmer reaction with Langmuir type adsorption for both, Ni/Ru fresh and aged catalysts. © 2015 Hydrogen Energy Publications, LLC. Fil:Franceschini, E.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Corti, H.R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. INPR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_03603199_v_n_p_Franceschini
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Hydrogen generation Impedance spectroscopy Nickel/ruthenium Rotating disk electrode Spontaneous deposition Catalyst activity Catalysts Deposition Electrochemical electrodes Electrochemical impedance spectroscopy Electrodes Hydrogen production Kinetics Nickel Reaction kinetics Ruthenium Spectroscopy Spectrum analysis Electrocatalytic activity Electrochemical characterizations Hydrogen evolution reactions Hydrogen generations Impedance spectroscopy Kinetic and thermodynamic parameters Rotating disk electrodes Spontaneous deposition Rotating disks
spellingShingle	Hydrogen generation Impedance spectroscopy Nickel/ruthenium Rotating disk electrode Spontaneous deposition Catalyst activity Catalysts Deposition Electrochemical electrodes Electrochemical impedance spectroscopy Electrodes Hydrogen production Kinetics Nickel Reaction kinetics Ruthenium Spectroscopy Spectrum analysis Electrocatalytic activity Electrochemical characterizations Hydrogen evolution reactions Hydrogen generations Impedance spectroscopy Kinetic and thermodynamic parameters Rotating disk electrodes Spontaneous deposition Rotating disks Franceschini, E.A. Lacconi, G.I. Corti, H.R. Kinetics of hydrogen evolution reaction on nickel modified by spontaneous Ru deposition: A rotating disk electrode and impedance spectroscopy approach
topic_facet	Hydrogen generation Impedance spectroscopy Nickel/ruthenium Rotating disk electrode Spontaneous deposition Catalyst activity Catalysts Deposition Electrochemical electrodes Electrochemical impedance spectroscopy Electrodes Hydrogen production Kinetics Nickel Reaction kinetics Ruthenium Spectroscopy Spectrum analysis Electrocatalytic activity Electrochemical characterizations Hydrogen evolution reactions Hydrogen generations Impedance spectroscopy Kinetic and thermodynamic parameters Rotating disk electrodes Spontaneous deposition Rotating disks
description	The kinetics of hydrogen evolution reaction (HER) was studied on nickel catalysts prepared using a ruthenium spontaneous deposition method. Rotating disk electrode (RDE) and electrochemical impedance spectroscopy (EIS) were used for electrochemical characterization, and the results of the analysis were compared with pure nickel catalysts. Three different deposition times were used to obtain different ruthenium loads and to analyze their impact on the electrocatalytic activity. Kinetic and thermodynamic parameters of the reaction were obtained for freshly synthesized catalysts, and also for catalysts aged using a short chronoamperometric procedure. The presence of ruthenium was found to shift the reaction onset potential up to about 160 mV to lower overpotentials comparing with pure nickel, which not increases after ageing, showing a substantial improvement in catalytic activity. Results of Tafel and Koutecky-Levich (K-L) analysis have shown that the HER rate determining step is the Volmer reaction with Langmuir type adsorption for both, Ni/Ru fresh and aged catalysts. © 2015 Hydrogen Energy Publications, LLC.
format	INPR
author	Franceschini, E.A. Lacconi, G.I. Corti, H.R.
author_facet	Franceschini, E.A. Lacconi, G.I. Corti, H.R.
author_sort	Franceschini, E.A.
title	Kinetics of hydrogen evolution reaction on nickel modified by spontaneous Ru deposition: A rotating disk electrode and impedance spectroscopy approach
title_short	Kinetics of hydrogen evolution reaction on nickel modified by spontaneous Ru deposition: A rotating disk electrode and impedance spectroscopy approach
title_full	Kinetics of hydrogen evolution reaction on nickel modified by spontaneous Ru deposition: A rotating disk electrode and impedance spectroscopy approach
title_fullStr	Kinetics of hydrogen evolution reaction on nickel modified by spontaneous Ru deposition: A rotating disk electrode and impedance spectroscopy approach
title_full_unstemmed	Kinetics of hydrogen evolution reaction on nickel modified by spontaneous Ru deposition: A rotating disk electrode and impedance spectroscopy approach
title_sort	kinetics of hydrogen evolution reaction on nickel modified by spontaneous ru deposition: a rotating disk electrode and impedance spectroscopy approach
url	http://hdl.handle.net/20.500.12110/paper_03603199_v_n_p_Franceschini
work_keys_str_mv	AT franceschiniea kineticsofhydrogenevolutionreactiononnickelmodifiedbyspontaneousrudepositionarotatingdiskelectrodeandimpedancespectroscopyapproach AT lacconigi kineticsofhydrogenevolutionreactiononnickelmodifiedbyspontaneousrudepositionarotatingdiskelectrodeandimpedancespectroscopyapproach AT cortihr kineticsofhydrogenevolutionreactiononnickelmodifiedbyspontaneousrudepositionarotatingdiskelectrodeandimpedancespectroscopyapproach
_version_	1782027768820662272

Kinetics of hydrogen evolution reaction on nickel modified by spontaneous Ru deposition: A rotating disk electrode and impedance spectroscopy approach

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