Electrochemical Quartz Crystal Microbalance Gravimetric and Viscoelastic Studies of Nickel Hydroxide Battery Electrodes

The measurement of rheological properties of electrodeposited NiOOH films simultaneous to cyclic voltammetry using an electrochemical quartz crystal microbalance and fast quartz crystal impedance at 10 MHz for thin and thick films are reported. The resulting impedance parameters are analyzed using t...

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Autores principales: Etchenique, R., Calvo, E.J.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00134651_v148_n4_pA361_Etchenique
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_00134651_v148_n4_pA361_Etchenique2023-10-03T14:10:44Z Electrochemical Quartz Crystal Microbalance Gravimetric and Viscoelastic Studies of Nickel Hydroxide Battery Electrodes Etchenique, R. Calvo, E.J. The measurement of rheological properties of electrodeposited NiOOH films simultaneous to cyclic voltammetry using an electrochemical quartz crystal microbalance and fast quartz crystal impedance at 10 MHz for thin and thick films are reported. The resulting impedance parameters are analyzed using the model proposed by Martin and Granstaff for multiple viscoelastic layers on a piezoelectric resonator. Nickel battery oxide films show an inversion in mass-to-charge relation as shown previously by Scherson and Hillman in the first reduction-oxidation cycles but without appreciable change in their viscoelastic behavior. Changes in the motional resistance are not recovered in the first cycle during "break in." After hundreds of cycles, NiOOH films undertake an important viscoelastic change, and the aged films become softer. The oxidized state shows always higher shear modulus than the reduced state. © 2001 The Electrochemical Society. All rights reserved. Fil:Etchenique, R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Calvo, E.J. 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_00134651_v148_n4_pA361_Etchenique
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description The measurement of rheological properties of electrodeposited NiOOH films simultaneous to cyclic voltammetry using an electrochemical quartz crystal microbalance and fast quartz crystal impedance at 10 MHz for thin and thick films are reported. The resulting impedance parameters are analyzed using the model proposed by Martin and Granstaff for multiple viscoelastic layers on a piezoelectric resonator. Nickel battery oxide films show an inversion in mass-to-charge relation as shown previously by Scherson and Hillman in the first reduction-oxidation cycles but without appreciable change in their viscoelastic behavior. Changes in the motional resistance are not recovered in the first cycle during "break in." After hundreds of cycles, NiOOH films undertake an important viscoelastic change, and the aged films become softer. The oxidized state shows always higher shear modulus than the reduced state. © 2001 The Electrochemical Society. All rights reserved.
format JOUR
author Etchenique, R.
Calvo, E.J.
spellingShingle Etchenique, R.
Calvo, E.J.
Electrochemical Quartz Crystal Microbalance Gravimetric and Viscoelastic Studies of Nickel Hydroxide Battery Electrodes
author_facet Etchenique, R.
Calvo, E.J.
author_sort Etchenique, R.
title Electrochemical Quartz Crystal Microbalance Gravimetric and Viscoelastic Studies of Nickel Hydroxide Battery Electrodes
title_short Electrochemical Quartz Crystal Microbalance Gravimetric and Viscoelastic Studies of Nickel Hydroxide Battery Electrodes
title_full Electrochemical Quartz Crystal Microbalance Gravimetric and Viscoelastic Studies of Nickel Hydroxide Battery Electrodes
title_fullStr Electrochemical Quartz Crystal Microbalance Gravimetric and Viscoelastic Studies of Nickel Hydroxide Battery Electrodes
title_full_unstemmed Electrochemical Quartz Crystal Microbalance Gravimetric and Viscoelastic Studies of Nickel Hydroxide Battery Electrodes
title_sort electrochemical quartz crystal microbalance gravimetric and viscoelastic studies of nickel hydroxide battery electrodes
url http://hdl.handle.net/20.500.12110/paper_00134651_v148_n4_pA361_Etchenique
work_keys_str_mv AT etcheniquer electrochemicalquartzcrystalmicrobalancegravimetricandviscoelasticstudiesofnickelhydroxidebatteryelectrodes
AT calvoej electrochemicalquartzcrystalmicrobalancegravimetricandviscoelasticstudiesofnickelhydroxidebatteryelectrodes
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