Electrochemical generation of ferrate on SnO 2-Sb 2O 3/Ti electrodes in strong concentration basic condition

Cun Zhong Zhang; Zhen Liu; Feng Wu; Li Jun Lin; Fei Qi

doi:10.1016/j.elecom.2004.08.011

Electrochemical generation of ferrate on SnO ₂-Sb ₂O ₃/Ti electrodes in strong concentration basic condition

Cun Zhong Zhang, Zhen Liu, Feng Wu, Li Jun Lin, Fei Qi

School of Material Science and Engineering

Beijing Institute of Technology

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

34 Citations (Scopus)

Abstract

The excellent over-potential with respect to the OER in strong basic solution of the SnO ₂-Sb ₂O ₃/Ti anode was applied to the investigation of the electrochemical behaviour of the redox couple FeO42-/FeO2-. The results proved that ferrate could be generated by the electrochemical path without any side reaction of OER on the electrode of SnO ₂-Sb ₂O ₃/Ti. At the same time, the formation of Fe(III) species, which formed a redox couple with FeO42- in strong basic solution, was confirmed as exclusively FeO2-. The generation of FeO2- and the ionization of Fe(III) hydroxide in very high concentration basic environment were explored and discussed. The results proved that acidity and acidic ionization of Fe(III) hydroxide play an un-neglected role for the safe rechargeable super-iron battery. Furthermore the mechanism of electrochemical generation of ferrate was investigated and exhibited as the mechanism of CEC. The relative barriers for the manufacture of secondary super-iron battery were discussed.

Original language	English
Pages (from-to)	1104-1109
Number of pages	6
Journal	Electrochemistry Communications
Volume	6
Issue number	11
DOIs	https://doi.org/10.1016/j.elecom.2004.08.011
Publication status	Published - Nov 2004

Keywords

Amphoteric hydroxide
Cyclic voltammetry
Dimensionally stable anode
Electrochemical generation
Ferrate
Secondary battery

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10.1016/j.elecom.2004.08.011

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title = "Electrochemical generation of ferrate on SnO 2-Sb 2O 3/Ti electrodes in strong concentration basic condition",

abstract = "The excellent over-potential with respect to the OER in strong basic solution of the SnO 2-Sb 2O 3/Ti anode was applied to the investigation of the electrochemical behaviour of the redox couple FeO42-/FeO2-. The results proved that ferrate could be generated by the electrochemical path without any side reaction of OER on the electrode of SnO 2-Sb 2O 3/Ti. At the same time, the formation of Fe(III) species, which formed a redox couple with FeO42- in strong basic solution, was confirmed as exclusively FeO2-. The generation of FeO2- and the ionization of Fe(III) hydroxide in very high concentration basic environment were explored and discussed. The results proved that acidity and acidic ionization of Fe(III) hydroxide play an un-neglected role for the safe rechargeable super-iron battery. Furthermore the mechanism of electrochemical generation of ferrate was investigated and exhibited as the mechanism of CEC. The relative barriers for the manufacture of secondary super-iron battery were discussed.",

keywords = "Amphoteric hydroxide, Cyclic voltammetry, Dimensionally stable anode, Electrochemical generation, Ferrate, Secondary battery",

author = "Zhang, {Cun Zhong} and Zhen Liu and Feng Wu and Lin, {Li Jun} and Fei Qi",

year = "2004",

month = nov,

doi = "10.1016/j.elecom.2004.08.011",

language = "English",

volume = "6",

pages = "1104--1109",

journal = "Electrochemistry Communications",

issn = "1388-2481",

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TY - JOUR

T1 - Electrochemical generation of ferrate on SnO 2-Sb 2O 3/Ti electrodes in strong concentration basic condition

AU - Zhang, Cun Zhong

AU - Liu, Zhen

AU - Wu, Feng

AU - Lin, Li Jun

AU - Qi, Fei

PY - 2004/11

Y1 - 2004/11

N2 - The excellent over-potential with respect to the OER in strong basic solution of the SnO 2-Sb 2O 3/Ti anode was applied to the investigation of the electrochemical behaviour of the redox couple FeO42-/FeO2-. The results proved that ferrate could be generated by the electrochemical path without any side reaction of OER on the electrode of SnO 2-Sb 2O 3/Ti. At the same time, the formation of Fe(III) species, which formed a redox couple with FeO42- in strong basic solution, was confirmed as exclusively FeO2-. The generation of FeO2- and the ionization of Fe(III) hydroxide in very high concentration basic environment were explored and discussed. The results proved that acidity and acidic ionization of Fe(III) hydroxide play an un-neglected role for the safe rechargeable super-iron battery. Furthermore the mechanism of electrochemical generation of ferrate was investigated and exhibited as the mechanism of CEC. The relative barriers for the manufacture of secondary super-iron battery were discussed.

AB - The excellent over-potential with respect to the OER in strong basic solution of the SnO 2-Sb 2O 3/Ti anode was applied to the investigation of the electrochemical behaviour of the redox couple FeO42-/FeO2-. The results proved that ferrate could be generated by the electrochemical path without any side reaction of OER on the electrode of SnO 2-Sb 2O 3/Ti. At the same time, the formation of Fe(III) species, which formed a redox couple with FeO42- in strong basic solution, was confirmed as exclusively FeO2-. The generation of FeO2- and the ionization of Fe(III) hydroxide in very high concentration basic environment were explored and discussed. The results proved that acidity and acidic ionization of Fe(III) hydroxide play an un-neglected role for the safe rechargeable super-iron battery. Furthermore the mechanism of electrochemical generation of ferrate was investigated and exhibited as the mechanism of CEC. The relative barriers for the manufacture of secondary super-iron battery were discussed.

KW - Amphoteric hydroxide

KW - Cyclic voltammetry

KW - Dimensionally stable anode

KW - Electrochemical generation

KW - Ferrate

KW - Secondary battery

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U2 - 10.1016/j.elecom.2004.08.011

DO - 10.1016/j.elecom.2004.08.011

M3 - Article

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SN - 1388-2481

VL - 6

SP - 1104

EP - 1109

JO - Electrochemistry Communications

JF - Electrochemistry Communications

IS - 11

ER -

Electrochemical generation of ferrate on SnO ₂-Sb ₂O ₃/Ti electrodes in strong concentration basic condition

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Keywords

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