Some interesting aspects of the catalytic and electrocatalytic reduction of perchlorate ions

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Abstract

The problem of the reduction of perchlorate ions is discussed in the light of recent results bearing in mind the perchlorate environmental contamination challenge and recent problems concerning the electrochemical stability of ClO4- ions. The catalytic and electrocatalytic transformations are compared in the case of WC and Pt electrodes (catalysts). Various methods for the detection of the occurrence of the reduction process are presented (radiotracer technique, potential step method and voltammetry). It is shown that the interpretation of the results of studies of corrosion processes of Al, Zn, Cu, Ni and Fe carried out in the presence of ClO 4- ions cannot be considered as adequate without taking into consideration the reduction of ClO4- ions and all previous work should be revisited on the basis of the new findings. Some elements of the mechanistic aspects of the complicated reduction processes are discussed.

Original languageEnglish
Pages (from-to)197-211
Number of pages15
JournalJournal of Electroanalytical Chemistry
Volume552
Issue numberSUPPL.
DOIs
Publication statusPublished - aug. 30 2003

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Ions
Voltammetry
Contamination
Corrosion
Electrodes
Catalysts
perchlorate

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Analytical Chemistry
  • Electrochemistry

Cite this

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title = "Some interesting aspects of the catalytic and electrocatalytic reduction of perchlorate ions",
abstract = "The problem of the reduction of perchlorate ions is discussed in the light of recent results bearing in mind the perchlorate environmental contamination challenge and recent problems concerning the electrochemical stability of ClO4- ions. The catalytic and electrocatalytic transformations are compared in the case of WC and Pt electrodes (catalysts). Various methods for the detection of the occurrence of the reduction process are presented (radiotracer technique, potential step method and voltammetry). It is shown that the interpretation of the results of studies of corrosion processes of Al, Zn, Cu, Ni and Fe carried out in the presence of ClO 4- ions cannot be considered as adequate without taking into consideration the reduction of ClO4- ions and all previous work should be revisited on the basis of the new findings. Some elements of the mechanistic aspects of the complicated reduction processes are discussed.",
keywords = "Aluminum, Copper, Corrosion, Electrocatalytic reduction, Environmental contamination, Iron, Nickel, Noble metals, Perchlorate ions, Zinc",
author = "G. L{\'a}ng and G. Hor{\'a}nyi",
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issn = "0022-0728",
publisher = "Elsevier Sequoia",
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TY - JOUR

T1 - Some interesting aspects of the catalytic and electrocatalytic reduction of perchlorate ions

AU - Láng, G.

AU - Horányi, G.

PY - 2003/8/30

Y1 - 2003/8/30

N2 - The problem of the reduction of perchlorate ions is discussed in the light of recent results bearing in mind the perchlorate environmental contamination challenge and recent problems concerning the electrochemical stability of ClO4- ions. The catalytic and electrocatalytic transformations are compared in the case of WC and Pt electrodes (catalysts). Various methods for the detection of the occurrence of the reduction process are presented (radiotracer technique, potential step method and voltammetry). It is shown that the interpretation of the results of studies of corrosion processes of Al, Zn, Cu, Ni and Fe carried out in the presence of ClO 4- ions cannot be considered as adequate without taking into consideration the reduction of ClO4- ions and all previous work should be revisited on the basis of the new findings. Some elements of the mechanistic aspects of the complicated reduction processes are discussed.

AB - The problem of the reduction of perchlorate ions is discussed in the light of recent results bearing in mind the perchlorate environmental contamination challenge and recent problems concerning the electrochemical stability of ClO4- ions. The catalytic and electrocatalytic transformations are compared in the case of WC and Pt electrodes (catalysts). Various methods for the detection of the occurrence of the reduction process are presented (radiotracer technique, potential step method and voltammetry). It is shown that the interpretation of the results of studies of corrosion processes of Al, Zn, Cu, Ni and Fe carried out in the presence of ClO 4- ions cannot be considered as adequate without taking into consideration the reduction of ClO4- ions and all previous work should be revisited on the basis of the new findings. Some elements of the mechanistic aspects of the complicated reduction processes are discussed.

KW - Aluminum

KW - Copper

KW - Corrosion

KW - Electrocatalytic reduction

KW - Environmental contamination

KW - Iron

KW - Nickel

KW - Noble metals

KW - Perchlorate ions

KW - Zinc

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U2 - 10.1016/S0022-0728(02)01302-5

DO - 10.1016/S0022-0728(02)01302-5

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VL - 552

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EP - 211

JO - Journal of Electroanalytical Chemistry

JF - Journal of Electroanalytical Chemistry

SN - 0022-0728

IS - SUPPL.

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