Investigation on V(IV)/V(V) species in a vanadium redox flow battery

Gaku Oriji; Yasushi Katayama; Takashi Miura

doi:10.1016/j.electacta.2004.02.020

Investigation on V(IV)/V(V) species in a vanadium redox flow battery

Gaku Oriji, Yasushi Katayama, Takashi Miura

Department of Applied Chemistry

Research output: Contribution to journal › Article › peer-review

172 Citations (Scopus)

Abstract

Stokes radii of V(IV) and V(V) species in concentrated sulfuric acid solutions were determined from their diffusion limited current densities on a rotating platinum disk electrode and the solution viscosity. In addition, V(IV) and V(V) species were estimated based on their solubility, UV-Vis spectra, and cyclic voltammetric data. The possible ion-pair formation of V(IV) cation with SO₄^2- and/or HSO₄^- and the spontaneous polymerization of V(V) at a low H₂SO₄ concentration were discussed.

Original language	English
Pages (from-to)	3091-3095
Number of pages	5
Journal	Electrochimica Acta
Volume	49
Issue number	19
DOIs	https://doi.org/10.1016/j.electacta.2004.02.020
Publication status	Published - 2004 Aug 15

Keywords

Complex formation with SOor HSO
Dissolved state
Ion pair
Polymeric form
Stokes radius
Vanadium redox flow battery

ASJC Scopus subject areas

Chemical Engineering(all)
Electrochemistry

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10.1016/j.electacta.2004.02.020

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title = "Investigation on V(IV)/V(V) species in a vanadium redox flow battery",

abstract = "Stokes radii of V(IV) and V(V) species in concentrated sulfuric acid solutions were determined from their diffusion limited current densities on a rotating platinum disk electrode and the solution viscosity. In addition, V(IV) and V(V) species were estimated based on their solubility, UV-Vis spectra, and cyclic voltammetric data. The possible ion-pair formation of V(IV) cation with SO42- and/or HSO4- and the spontaneous polymerization of V(V) at a low H2SO4 concentration were discussed.",

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author = "Gaku Oriji and Yasushi Katayama and Takashi Miura",

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T1 - Investigation on V(IV)/V(V) species in a vanadium redox flow battery

AU - Oriji, Gaku

AU - Katayama, Yasushi

AU - Miura, Takashi

PY - 2004/8/15

Y1 - 2004/8/15

N2 - Stokes radii of V(IV) and V(V) species in concentrated sulfuric acid solutions were determined from their diffusion limited current densities on a rotating platinum disk electrode and the solution viscosity. In addition, V(IV) and V(V) species were estimated based on their solubility, UV-Vis spectra, and cyclic voltammetric data. The possible ion-pair formation of V(IV) cation with SO42- and/or HSO4- and the spontaneous polymerization of V(V) at a low H2SO4 concentration were discussed.

AB - Stokes radii of V(IV) and V(V) species in concentrated sulfuric acid solutions were determined from their diffusion limited current densities on a rotating platinum disk electrode and the solution viscosity. In addition, V(IV) and V(V) species were estimated based on their solubility, UV-Vis spectra, and cyclic voltammetric data. The possible ion-pair formation of V(IV) cation with SO42- and/or HSO4- and the spontaneous polymerization of V(V) at a low H2SO4 concentration were discussed.

KW - Complex formation with SOor HSO

KW - Dissolved state

KW - Ion pair

KW - Polymeric form

KW - Stokes radius

KW - Vanadium redox flow battery

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DO - 10.1016/j.electacta.2004.02.020

M3 - Article

AN - SCOPUS:2442595726

SN - 0013-4686

VL - 49

SP - 3091

EP - 3095

JO - Electrochimica Acta

JF - Electrochimica Acta

IS - 19

ER -

Investigation on V(IV)/V(V) species in a vanadium redox flow battery

Abstract

Keywords

ASJC Scopus subject areas

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