In situ ATR-IR study of nitrite hydrogenation over Pd/Al2O3.

S.D. Ebbesen, Barbara Mojet, Leonardus Lefferts

Research output: Contribution to journalArticleAcademicpeer-review

47 Citations (Scopus)

Abstract

The mechanism of nitrite hydrogenation over a Pd/Al2O3 catalyst layer deposited on a ZnSe internal reflection element was investigated in water using attenuated total reflection infrared spectroscopy. Nitrite hydrogenates to NO(ads), NH2(ads), and NH+4 on the palladium surface. Hydrogenation of adsorbed NO on palladium results in the formation of a reaction product that is not infrared-active (most likely nitrogen), whereas no NH+4 is formed from NO(ads). NH+4 is formed solely from hydrogenation of the NH2(ads) intermediate. The present study clearly shows that formation of nitrogen and NH+4 proceeds via two separate pathways, based on which a revised reaction scheme is proposed.
Original languageUndefined
Pages (from-to)15-23
Number of pages9
JournalJournal of catalysis
Volume256
Issue number1
DOIs
Publication statusPublished - 2008

Keywords

  • IR-75811
  • METIS-250576

Cite this

Ebbesen, S.D. ; Mojet, Barbara ; Lefferts, Leonardus. / In situ ATR-IR study of nitrite hydrogenation over Pd/Al2O3. In: Journal of catalysis. 2008 ; Vol. 256, No. 1. pp. 15-23.
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abstract = "The mechanism of nitrite hydrogenation over a Pd/Al2O3 catalyst layer deposited on a ZnSe internal reflection element was investigated in water using attenuated total reflection infrared spectroscopy. Nitrite hydrogenates to NO(ads), NH2(ads), and NH+4 on the palladium surface. Hydrogenation of adsorbed NO on palladium results in the formation of a reaction product that is not infrared-active (most likely nitrogen), whereas no NH+4 is formed from NO(ads). NH+4 is formed solely from hydrogenation of the NH2(ads) intermediate. The present study clearly shows that formation of nitrogen and NH+4 proceeds via two separate pathways, based on which a revised reaction scheme is proposed.",
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In situ ATR-IR study of nitrite hydrogenation over Pd/Al2O3. / Ebbesen, S.D.; Mojet, Barbara; Lefferts, Leonardus.

In: Journal of catalysis, Vol. 256, No. 1, 2008, p. 15-23.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - In situ ATR-IR study of nitrite hydrogenation over Pd/Al2O3.

AU - Ebbesen, S.D.

AU - Mojet, Barbara

AU - Lefferts, Leonardus

PY - 2008

Y1 - 2008

N2 - The mechanism of nitrite hydrogenation over a Pd/Al2O3 catalyst layer deposited on a ZnSe internal reflection element was investigated in water using attenuated total reflection infrared spectroscopy. Nitrite hydrogenates to NO(ads), NH2(ads), and NH+4 on the palladium surface. Hydrogenation of adsorbed NO on palladium results in the formation of a reaction product that is not infrared-active (most likely nitrogen), whereas no NH+4 is formed from NO(ads). NH+4 is formed solely from hydrogenation of the NH2(ads) intermediate. The present study clearly shows that formation of nitrogen and NH+4 proceeds via two separate pathways, based on which a revised reaction scheme is proposed.

AB - The mechanism of nitrite hydrogenation over a Pd/Al2O3 catalyst layer deposited on a ZnSe internal reflection element was investigated in water using attenuated total reflection infrared spectroscopy. Nitrite hydrogenates to NO(ads), NH2(ads), and NH+4 on the palladium surface. Hydrogenation of adsorbed NO on palladium results in the formation of a reaction product that is not infrared-active (most likely nitrogen), whereas no NH+4 is formed from NO(ads). NH+4 is formed solely from hydrogenation of the NH2(ads) intermediate. The present study clearly shows that formation of nitrogen and NH+4 proceeds via two separate pathways, based on which a revised reaction scheme is proposed.

KW - IR-75811

KW - METIS-250576

U2 - 10.1016/j.jcat.2008.02.013

DO - 10.1016/j.jcat.2008.02.013

M3 - Article

VL - 256

SP - 15

EP - 23

JO - Journal of catalysis

JF - Journal of catalysis

SN - 0021-9517

IS - 1

ER -