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

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, Esteban Andrés, Corti, Horacio Roberto
Publicado:	2015
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:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03603199_v_n_p_Franceschini 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	paper:paper_03603199_v_n_p_Franceschini
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spelling	paper:paper_03603199_v_n_p_Franceschini2023-06-08T15:34:44Z Kinetics of hydrogen evolution reaction on nickel modified by spontaneous Ru deposition: A rotating disk electrode and impedance spectroscopy approach Franceschini, Esteban Andrés Corti, Horacio Roberto 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. 2015 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03603199_v_n_p_Franceschini 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, Esteban Andrés Corti, Horacio Roberto 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.
author	Franceschini, Esteban Andrés Corti, Horacio Roberto
author_facet	Franceschini, Esteban Andrés Corti, Horacio Roberto
author_sort	Franceschini, Esteban Andrés
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
publishDate	2015
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03603199_v_n_p_Franceschini http://hdl.handle.net/20.500.12110/paper_03603199_v_n_p_Franceschini
work_keys_str_mv	AT franceschiniestebanandres kineticsofhydrogenevolutionreactiononnickelmodifiedbyspontaneousrudepositionarotatingdiskelectrodeandimpedancespectroscopyapproach AT cortihoracioroberto kineticsofhydrogenevolutionreactiononnickelmodifiedbyspontaneousrudepositionarotatingdiskelectrodeandimpedancespectroscopyapproach
_version_	1768546586977107968

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

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