Kinetics of the hydrogen evolution on nickel in alkaline solution: New insight from rotating disk electrode and impedance spectroscopy analysis

Nickel catalysts were characterized for the hydrogen evolution reaction (HER) using rotating disk electrode (RDE) and electrochemical impedance spectroscopy (EIS). The theoretical Levich slope was calculated on the basis of the HER mechanism in alkaline solution. Kinetic and thermodynamic parameters...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Franceschini, E.A., Lacconi, G.I., Corti, H.R.
Formato: JOUR
Materias:
Ageing
Electrode Electrochemical Impedance
Hydrogen Evolution
Nickel
Rotating Disk
Catalyst activity
Catalysts
Electrochemical electrodes
Electrochemical impedance spectroscopy
Electrodes
Hydrogen
Spectroscopy
Temperature distribution
Electrochemical impedance
Hydrogen evolution
Hydrogen evolution reactions
Impedance spectroscopy
Kinetic and thermodynamic parameters
Rotating disk electrodes
Temperature dependence
Rotating disks
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00134686_v159_n_p210_Franceschini
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00134686_v159_n_p210_Franceschini
record_format dspace
spelling todo:paper_00134686_v159_n_p210_Franceschini2023-10-03T14:10:48Z Kinetics of the hydrogen evolution on nickel in alkaline solution: New insight from rotating disk electrode and impedance spectroscopy analysis Franceschini, E.A. Lacconi, G.I. Corti, H.R. Ageing Electrode Electrochemical Impedance Hydrogen Evolution Nickel Rotating Disk Catalyst activity Catalysts Electrochemical electrodes Electrochemical impedance spectroscopy Electrodes Hydrogen Nickel Spectroscopy Temperature distribution Ageing Electrochemical impedance Hydrogen evolution Hydrogen evolution reactions Impedance spectroscopy Kinetic and thermodynamic parameters Rotating disk electrodes Temperature dependence Rotating disks Nickel catalysts were characterized for the hydrogen evolution reaction (HER) using rotating disk electrode (RDE) and electrochemical impedance spectroscopy (EIS). The theoretical Levich slope was calculated on the basis of the HER mechanism in alkaline solution. Kinetic and thermodynamic parameters of the reaction were obtained for fresh polished nickel electrode (Nif), and for nickel after a quick chronoamperometric aging procedure (Nipc). Koutecky-Levich analysis indicated that the rate determining step on Nif is the one-electron Volmer reaction, while for Nipc decreases from one to 0.68 and exhibits a strong temperature dependence. A loss of catalytic activity, corresponding to an increase of 0.3 V of the HER onset potential, was observed after aging. Furthermore, from the EIS-Tafel analysis we concluded that the H adsorption changes from a Langmuir type for Nif, to a Temkin type for Nipc. © 2015 Elsevier Ltd. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00134686_v159_n_p210_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 Ageing
Electrode Electrochemical Impedance
Hydrogen Evolution
Nickel
Rotating Disk
Catalyst activity
Catalysts
Electrochemical electrodes
Electrochemical impedance spectroscopy
Electrodes
Hydrogen
Nickel
Spectroscopy
Temperature distribution
Ageing
Electrochemical impedance
Hydrogen evolution
Hydrogen evolution reactions
Impedance spectroscopy
Kinetic and thermodynamic parameters
Rotating disk electrodes
Temperature dependence
Rotating disks
spellingShingle Ageing
Electrode Electrochemical Impedance
Hydrogen Evolution
Nickel
Rotating Disk
Catalyst activity
Catalysts
Electrochemical electrodes
Electrochemical impedance spectroscopy
Electrodes
Hydrogen
Nickel
Spectroscopy
Temperature distribution
Ageing
Electrochemical impedance
Hydrogen evolution
Hydrogen evolution reactions
Impedance spectroscopy
Kinetic and thermodynamic parameters
Rotating disk electrodes
Temperature dependence
Rotating disks
Franceschini, E.A.
Lacconi, G.I.
Corti, H.R.
Kinetics of the hydrogen evolution on nickel in alkaline solution: New insight from rotating disk electrode and impedance spectroscopy analysis
topic_facet Ageing
Electrode Electrochemical Impedance
Hydrogen Evolution
Nickel
Rotating Disk
Catalyst activity
Catalysts
Electrochemical electrodes
Electrochemical impedance spectroscopy
Electrodes
Hydrogen
Nickel
Spectroscopy
Temperature distribution
Ageing
Electrochemical impedance
Hydrogen evolution
Hydrogen evolution reactions
Impedance spectroscopy
Kinetic and thermodynamic parameters
Rotating disk electrodes
Temperature dependence
Rotating disks
description Nickel catalysts were characterized for the hydrogen evolution reaction (HER) using rotating disk electrode (RDE) and electrochemical impedance spectroscopy (EIS). The theoretical Levich slope was calculated on the basis of the HER mechanism in alkaline solution. Kinetic and thermodynamic parameters of the reaction were obtained for fresh polished nickel electrode (Nif), and for nickel after a quick chronoamperometric aging procedure (Nipc). Koutecky-Levich analysis indicated that the rate determining step on Nif is the one-electron Volmer reaction, while for Nipc decreases from one to 0.68 and exhibits a strong temperature dependence. A loss of catalytic activity, corresponding to an increase of 0.3 V of the HER onset potential, was observed after aging. Furthermore, from the EIS-Tafel analysis we concluded that the H adsorption changes from a Langmuir type for Nif, to a Temkin type for Nipc. © 2015 Elsevier Ltd.
format JOUR
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 the hydrogen evolution on nickel in alkaline solution: New insight from rotating disk electrode and impedance spectroscopy analysis
title_short Kinetics of the hydrogen evolution on nickel in alkaline solution: New insight from rotating disk electrode and impedance spectroscopy analysis
title_full Kinetics of the hydrogen evolution on nickel in alkaline solution: New insight from rotating disk electrode and impedance spectroscopy analysis
title_fullStr Kinetics of the hydrogen evolution on nickel in alkaline solution: New insight from rotating disk electrode and impedance spectroscopy analysis
title_full_unstemmed Kinetics of the hydrogen evolution on nickel in alkaline solution: New insight from rotating disk electrode and impedance spectroscopy analysis
title_sort kinetics of the hydrogen evolution on nickel in alkaline solution: new insight from rotating disk electrode and impedance spectroscopy analysis
url http://hdl.handle.net/20.500.12110/paper_00134686_v159_n_p210_Franceschini
work_keys_str_mv AT franceschiniea kineticsofthehydrogenevolutiononnickelinalkalinesolutionnewinsightfromrotatingdiskelectrodeandimpedancespectroscopyanalysis
AT lacconigi kineticsofthehydrogenevolutiononnickelinalkalinesolutionnewinsightfromrotatingdiskelectrodeandimpedancespectroscopyanalysis
AT cortihr kineticsofthehydrogenevolutiononnickelinalkalinesolutionnewinsightfromrotatingdiskelectrodeandimpedancespectroscopyanalysis
_version_ 1807323929762594816

Ejemplares similares