Direct reduction of nitrite to N2 on a Pt(100) electrode in alkaline media

Matteo Duca; Mar Oroval Cucarella; Paramaconi Rodriguez; Marc T. M. Koper

doi:10.1021/ja1092503

Direct reduction of nitrite to N₂ on a Pt(100) electrode in alkaline media

Matteo Duca, Mar Oroval Cucarella, Paramaconi Rodriguez, Marc T. M. Koper

Chemistry

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

41 Citations (Scopus)

Abstract

The selective reduction of NO₂ ^- to N₂ in 0.1 M NaOH was obtained at a Pt(100) electrode in a narrow but distinct potential region. This is the first report of such selectivity for this reaction on Pt(100), which is known to be the most catalytically active platinum surface toward NO₂ ^- reduction in alkaline media. Both ammonia and nitrous oxide are ruled out as possible reaction intermediates on the basis of online electrochemical mass spectrometry. Based on earlier work on ammonia oxidation, NH₂ adsorbates are speculated to be involved in the reaction mechanism.

Original language	English
Pages (from-to)	18042-18044
Number of pages	3
Journal	Journal of the American Chemical Society
Volume	132
Issue number	51
Early online date	8 Dec 2010
DOIs	https://doi.org/10.1021/ja1092503
Publication status	Published - 29 Dec 2010

ASJC Scopus subject areas

General Chemistry
Catalysis
Biochemistry
Colloid and Surface Chemistry

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10.1021/ja1092503Licence: None: All rights reserved

Cite this

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abstract = "The selective reduction of NO2 - to N2 in 0.1 M NaOH was obtained at a Pt(100) electrode in a narrow but distinct potential region. This is the first report of such selectivity for this reaction on Pt(100), which is known to be the most catalytically active platinum surface toward NO2 - reduction in alkaline media. Both ammonia and nitrous oxide are ruled out as possible reaction intermediates on the basis of online electrochemical mass spectrometry. Based on earlier work on ammonia oxidation, NH2 adsorbates are speculated to be involved in the reaction mechanism.",

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AU - Duca, Matteo

AU - Cucarella, Mar Oroval

AU - Rodriguez, Paramaconi

AU - Koper, Marc T. M.

PY - 2010/12/29

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N2 - The selective reduction of NO2 - to N2 in 0.1 M NaOH was obtained at a Pt(100) electrode in a narrow but distinct potential region. This is the first report of such selectivity for this reaction on Pt(100), which is known to be the most catalytically active platinum surface toward NO2 - reduction in alkaline media. Both ammonia and nitrous oxide are ruled out as possible reaction intermediates on the basis of online electrochemical mass spectrometry. Based on earlier work on ammonia oxidation, NH2 adsorbates are speculated to be involved in the reaction mechanism.

AB - The selective reduction of NO2 - to N2 in 0.1 M NaOH was obtained at a Pt(100) electrode in a narrow but distinct potential region. This is the first report of such selectivity for this reaction on Pt(100), which is known to be the most catalytically active platinum surface toward NO2 - reduction in alkaline media. Both ammonia and nitrous oxide are ruled out as possible reaction intermediates on the basis of online electrochemical mass spectrometry. Based on earlier work on ammonia oxidation, NH2 adsorbates are speculated to be involved in the reaction mechanism.

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