The electrocatalytic reduction of nitrogen compounds, part II : the influence of the electrode material on the electrochemical reduction of nitrite

J.F. Plas, van der, E. Barendrecht

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Abstract

The electrochemical reduction of nitrite was studied at several electrode materials in 7.5 M sulfuric acid solutions. The thin oxide films on the noble metals, Pt, Ir and Rh, did not interfere with the reduction process. A thick oxide layer, as on Nb and Ta, however, did shift positively the reducing potential by several hundreds of mV. In these solutions, the protecting layer on a lead electrode (lead sulfate) behaved in the same manner. From the decrease in the current in repeated cyclic experiments, it could be concluded that poisoning of the active surface sites of the electrodes by oxygen did change the reduction mechanism of nitrite.
Original languageEnglish
Pages (from-to)65-69
JournalRecueil des Travaux Chimiques des Pays-Bas
Volume97
Issue number3
DOIs
Publication statusPublished - 1978

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Nitrogen Compounds
Nitrites
Electrodes
Precious metals
Oxides
Oxide films
Oxygen
Thin films
Experiments

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title = "The electrocatalytic reduction of nitrogen compounds, part II : the influence of the electrode material on the electrochemical reduction of nitrite",
abstract = "The electrochemical reduction of nitrite was studied at several electrode materials in 7.5 M sulfuric acid solutions. The thin oxide films on the noble metals, Pt, Ir and Rh, did not interfere with the reduction process. A thick oxide layer, as on Nb and Ta, however, did shift positively the reducing potential by several hundreds of mV. In these solutions, the protecting layer on a lead electrode (lead sulfate) behaved in the same manner. From the decrease in the current in repeated cyclic experiments, it could be concluded that poisoning of the active surface sites of the electrodes by oxygen did change the reduction mechanism of nitrite.",
author = "{Plas, van der}, J.F. and E. Barendrecht",
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pages = "65--69",
journal = "Recueil des Travaux Chimiques des Pays-Bas",
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The electrocatalytic reduction of nitrogen compounds, part II : the influence of the electrode material on the electrochemical reduction of nitrite. / Plas, van der, J.F.; Barendrecht, E.

In: Recueil des Travaux Chimiques des Pays-Bas, Vol. 97, No. 3, 1978, p. 65-69.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - The electrocatalytic reduction of nitrogen compounds, part II : the influence of the electrode material on the electrochemical reduction of nitrite

AU - Plas, van der, J.F.

AU - Barendrecht, E.

PY - 1978

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N2 - The electrochemical reduction of nitrite was studied at several electrode materials in 7.5 M sulfuric acid solutions. The thin oxide films on the noble metals, Pt, Ir and Rh, did not interfere with the reduction process. A thick oxide layer, as on Nb and Ta, however, did shift positively the reducing potential by several hundreds of mV. In these solutions, the protecting layer on a lead electrode (lead sulfate) behaved in the same manner. From the decrease in the current in repeated cyclic experiments, it could be concluded that poisoning of the active surface sites of the electrodes by oxygen did change the reduction mechanism of nitrite.

AB - The electrochemical reduction of nitrite was studied at several electrode materials in 7.5 M sulfuric acid solutions. The thin oxide films on the noble metals, Pt, Ir and Rh, did not interfere with the reduction process. A thick oxide layer, as on Nb and Ta, however, did shift positively the reducing potential by several hundreds of mV. In these solutions, the protecting layer on a lead electrode (lead sulfate) behaved in the same manner. From the decrease in the current in repeated cyclic experiments, it could be concluded that poisoning of the active surface sites of the electrodes by oxygen did change the reduction mechanism of nitrite.

U2 - 10.1002/recl.19780970303

DO - 10.1002/recl.19780970303

M3 - Article

VL - 97

SP - 65

EP - 69

JO - Recueil des Travaux Chimiques des Pays-Bas

JF - Recueil des Travaux Chimiques des Pays-Bas

SN - 0165-0513

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