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Oscillatory Behaviour of the NO-H2 Reaction over Rh(533) Full article

Journal Surface Science
ISSN: 0039-6028
Output data Year: 1994, Volume: 319, Number: 3, Pages: L29-L33 Pages count : 1 DOI: 10.1016/0039-6028(94)90586-X
Tags NITRIC-OXIDE; Pt(100); REDUCTION; NO; OXYGEN; NH3; H-2; Rh
Authors Janssen N.M.H. 1 , Nieuwenhuys B.E. 1 , Ikai M. 2 , Tanaka K. 2 , Cholach A.R. 3
Affiliations
1 The Leiden Institute for Chemistry, Gorlaeus Laboratories, P.O. Box 9502,230O RA Leiden, The Netherlands
2 The Institute for Solid State Physics, The University of Tokyo, 7-22-1 Roppongi, Minato-ku, Tokyo 106, Japan
3 Boreskov Institute of Catalysis, SB RAS, pr. Akad. Lavrentieua, 5, 630090, Novosibirsk, Russian Federation

Abstract: Waves moving over the surface of a Rh field emitter tip in an oscillatory way during the NO-H2 reaction have been visualized earlier by field electron microscopy (FEM). An autocatalysis model has been proposed to describe the oscillatory behaviour of the reduction of NO by H2. To study the oscillatory behaviour and the effect of the surface structure in more detail a large Rh(100) surface and a large stepped Rh(533) surface, Rh[4(111)∗(100)], have been selected. The first results show that, in correspondence with the FEM experiments, rate oscillations could be observed over the Rh(533) surface in the 10−6 mbar pressure regime around 470 K. No oscillatory behaviour was obtained on the Rh(100) surface under these conditions. The structure-sensitivity of the process is related to the large dependence of the Rh-N bond strength on the surface structure. Nitrogen desorbs at a much higher temperature from Rh(100) than from Rh(533).
Cite: Janssen N.M.H. , Nieuwenhuys B.E. , Ikai M. , Tanaka K. , Cholach A.R.
Oscillatory Behaviour of the NO-H2 Reaction over Rh(533)
Surface Science. 1994. V.319. N3. P.L29-L33. DOI: 10.1016/0039-6028(94)90586-X WOS Scopus РИНЦ ANCAN OpenAlex
Dates:
Submitted: Jul 26, 1994
Accepted: Aug 24, 1994
Published print: Nov 10, 1994
Published online: Sep 10, 2002
Identifiers:
Web of science: WOS:A1994PP81200001
Scopus: 2-s2.0-0028546737
Elibrary: 31173345
Chemical Abstracts: 1995:194522
Chemical Abstracts (print): 122:90515
OpenAlex: W2063011043
Citing:
DB Citing
Web of science 32
Scopus 37
Elibrary 36
OpenAlex 35
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