Mechanism of N + NO Reaction on Rh(111) surfaces: A precursor-mediated reaction

Ikuyo Nakai; Hiroshi Kondoh; Toru Shimada; Masanari Nagasaka; Reona Yokota; Tetsuo Katayama; Kenta Amemiya; Hideo Orita; Toshiaki Ohta

doi:10.1021/jp902583x

Mechanism of N + NO Reaction on Rh(111) surfaces: A precursor-mediated reaction

Ikuyo Nakai
, Hiroshi Kondoh
, Toru Shimada
, Masanari Nagasaka
, Reona Yokota
, Tetsuo Katayama
, Kenta Amemiya
, Hideo Orita
, Toshiaki Ohta

Department of Chemistry

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

26 Citations (Scopus)

Abstract

We studied the mechanism of the N + NO reaction on Rh(111) surfaces by means of near edge X-ray absorption fine structure (NEXAFS) spectroscopy. Atomic nitrogen layers on Rh(111) were titrated with NO at various temperatures. Below 350 K, the chemisorbed NO monomer does not react with N, while the NO dimer formed in the second layer acts as an extrinsic precursor to the reaction: N(a) + (NO)₂(a)→N₂O(g) + NO(a). Because of a dominant role of the precursor-mediated mechanism, the reaction proceeds slower with an increase in temperature. Above 350 K, the reaction switches to a different path: N(a) + NO(a) → N2(g) + O(a). ?.

Original language	English
Pages (from-to)	13257-13265
Number of pages	9
Journal	Journal of Physical Chemistry C
Volume	113
Issue number	30
DOIs	https://doi.org/10.1021/jp902583x
Publication status	Published - 2009 Jul 30

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
General Energy
Physical and Theoretical Chemistry
Surfaces, Coatings and Films

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10.1021/jp902583x

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title = "Mechanism of N + NO Reaction on Rh(111) surfaces: A precursor-mediated reaction",

abstract = "We studied the mechanism of the N + NO reaction on Rh(111) surfaces by means of near edge X-ray absorption fine structure (NEXAFS) spectroscopy. Atomic nitrogen layers on Rh(111) were titrated with NO at various temperatures. Below 350 K, the chemisorbed NO monomer does not react with N, while the NO dimer formed in the second layer acts as an extrinsic precursor to the reaction: N(a) + (NO)2(a)→N2O(g) + NO(a). Because of a dominant role of the precursor-mediated mechanism, the reaction proceeds slower with an increase in temperature. Above 350 K, the reaction switches to a different path: N(a) + NO(a) → N2(g) + O(a). ?.",

author = "Ikuyo Nakai and Hiroshi Kondoh and Toru Shimada and Masanari Nagasaka and Reona Yokota and Tetsuo Katayama and Kenta Amemiya and Hideo Orita and Toshiaki Ohta",

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T1 - Mechanism of N + NO Reaction on Rh(111) surfaces

T2 - A precursor-mediated reaction

AU - Nakai, Ikuyo

AU - Kondoh, Hiroshi

AU - Shimada, Toru

AU - Nagasaka, Masanari

AU - Yokota, Reona

AU - Katayama, Tetsuo

AU - Amemiya, Kenta

AU - Orita, Hideo

AU - Ohta, Toshiaki

PY - 2009/7/30

Y1 - 2009/7/30

N2 - We studied the mechanism of the N + NO reaction on Rh(111) surfaces by means of near edge X-ray absorption fine structure (NEXAFS) spectroscopy. Atomic nitrogen layers on Rh(111) were titrated with NO at various temperatures. Below 350 K, the chemisorbed NO monomer does not react with N, while the NO dimer formed in the second layer acts as an extrinsic precursor to the reaction: N(a) + (NO)2(a)→N2O(g) + NO(a). Because of a dominant role of the precursor-mediated mechanism, the reaction proceeds slower with an increase in temperature. Above 350 K, the reaction switches to a different path: N(a) + NO(a) → N2(g) + O(a). ?.

AB - We studied the mechanism of the N + NO reaction on Rh(111) surfaces by means of near edge X-ray absorption fine structure (NEXAFS) spectroscopy. Atomic nitrogen layers on Rh(111) were titrated with NO at various temperatures. Below 350 K, the chemisorbed NO monomer does not react with N, while the NO dimer formed in the second layer acts as an extrinsic precursor to the reaction: N(a) + (NO)2(a)→N2O(g) + NO(a). Because of a dominant role of the precursor-mediated mechanism, the reaction proceeds slower with an increase in temperature. Above 350 K, the reaction switches to a different path: N(a) + NO(a) → N2(g) + O(a). ?.

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JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

IS - 30

ER -

Mechanism of N + NO Reaction on Rh(111) surfaces: A precursor-mediated reaction

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