Oscillations of the NO-H2 Reaction over Ir(110) in Activity and Selectivity | Sciact - CRIS-system of Boreskov Institute of Catalysis

Oscillations of the NO-H2 Reaction over Ir(110) in Activity and Selectivity Full article

Journal

Surface Science
ISSN: 0039-6028

Output data

Year: 1999, Volume: 433-435, Pages: 63-68 Pages count : 6 DOI: 10.1016/S0039-6028(99)00062-X

Tags

Hydrogen; Iridium; Nitrogen oxides; Single crystal surfaces

Authors

de Wolf C.A. ¹ , Nieuwenhuys B.E. ¹ , Slinko M.M. ² , Smirnov M.Yu. ³

Affiliations

1	Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RA Leiden, Netherlands
2	Institute of Chemical Physics, Russian Academy of Sciences, Kosygin Str. 4, Moscow 117977, Russia
3	Boreskov Institute of Catalysis, Russian Academy of Sciences, Siberian Branch, Novosibirsk 630090, Russia

Funding (3)

1	International Association for the Promotion of Co-operation with Scientists from the New Independent States of the Former Soviet Union	4A-95-186
2	Netherlands Organisation for Scientific Research
3	Netherlands Institute for Catalysis Research	99-2-04

Self-sustained isothermal oscillations in the NO–H2 reaction were found on the Ir(110) surface. The rates of NH3 and N2 formation oscillate exactly out of phase. The high activity state during the oscillations (high NO conversion) corresponds to a high rate of NH3 formation, while in the low activity state a high rate of N2 formation has been observed. The shape of the oscillations is very sensitive to changes in the H2/NO ratio or temperature. Build-up of a stable N species might play an important role in the mechanism of the oscillations.

de Wolf C.A. , Nieuwenhuys B.E. , Slinko M.M. , Smirnov M.Y.
Oscillations of the NO-H2 Reaction over Ir(110) in Activity and Selectivity
Surface Science. 1999. V.433-435. P.63-68. DOI: 10.1016/S0039-6028(99)00062-X WOS Scopus РИНЦ ANCAN OpenAlex

Published print:	Aug 2, 1999
Published online:	Aug 21, 2000

Web of science:	WOS:000082235500012
Scopus:	2-s2.0-0033349264
Elibrary:	367981
Chemical Abstracts:	1999:613223
Chemical Abstracts (print):	131:277440
OpenAlex:	W2098074590

DB	Citing
Web of science	12
Scopus	12
Elibrary	14
OpenAlex	11