Dynamics of subsurface oxygen formation in catalytic water formation on a Rh(1 1 1) surface: Experiment and simulation

Publikation: Beitrag in Fachzeitschrift › Konferenzaufsatz in Fachzeitschrift › Forschung › Peer-Review

Autoren

  • M. I. Monine
  • A. Schaak
  • B. Y. Rubinstein
  • R. Imbihl
  • L. M. Pismen

Organisationseinheiten

Externe Organisationen

  • Technion-Israel Institute of Technology
Forschungs-netzwerk anzeigen

Details

OriginalspracheEnglisch
Seiten (von - bis)321-330
Seitenumfang10
FachzeitschriftCatalysis today
Jahrgang70
Ausgabenummer4
PublikationsstatusVeröffentlicht - 1 Nov. 2001
VeranstaltungSpatiotemporal Catalytic Patterns (SHEINTUCH S.I.) - Haifa, Israel
Dauer: 15 Okt. 2000 → 15 Okt. 2000

Abstract

The catalytic O2+H2 reaction on Rh(1 1 1) has been investigated in the 10-6-10-5mbar range using photoelectron emission microscopy as spatially resolving method. While the reaction without pretreatment of the sample displays simple bistable behavior, we find that after extended pre-oxidation of the sample (pO(2) = 2 × 10-4mbar,T = 770 K, tOX > 24 h), low work function (LWF) areas develop dynamically in the collision of reaction fronts. The LWF areas have been assigned to subsurface oxygen. We present a simple three-variable model which reproduces the formation of LWF areas in the collision of reaction fronts.

ASJC Scopus Sachgebiete

Zitieren

Dynamics of subsurface oxygen formation in catalytic water formation on a Rh(1 1 1) surface: Experiment and simulation. / Monine, M. I.; Schaak, A.; Rubinstein, B. Y. et al.
in: Catalysis today, Jahrgang 70, Nr. 4, 01.11.2001, S. 321-330.

Publikation: Beitrag in Fachzeitschrift › Konferenzaufsatz in Fachzeitschrift › Forschung › Peer-Review

Monine MI, Schaak A, Rubinstein BY, Imbihl R, Pismen LM. Dynamics of subsurface oxygen formation in catalytic water formation on a Rh(1 1 1) surface: Experiment and simulation. Catalysis today. 2001 Nov 1;70(4):321-330. doi: 10.1016/S0920-5861(01)00340-6
Monine, M. I. ; Schaak, A. ; Rubinstein, B. Y. et al. / Dynamics of subsurface oxygen formation in catalytic water formation on a Rh(1 1 1) surface : Experiment and simulation. in: Catalysis today. 2001 ; Jahrgang 70, Nr. 4. S. 321-330.
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title = "Dynamics of subsurface oxygen formation in catalytic water formation on a Rh(1 1 1) surface: Experiment and simulation",
abstract = "The catalytic O2+H2 reaction on Rh(1 1 1) has been investigated in the 10-6-10-5mbar range using photoelectron emission microscopy as spatially resolving method. While the reaction without pretreatment of the sample displays simple bistable behavior, we find that after extended pre-oxidation of the sample (pO(2) = 2 × 10-4mbar,T = 770 K, tOX > 24 h), low work function (LWF) areas develop dynamically in the collision of reaction fronts. The LWF areas have been assigned to subsurface oxygen. We present a simple three-variable model which reproduces the formation of LWF areas in the collision of reaction fronts.",
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note = "Funding Information: This work has been supported by the German–Israeli Science Foundation. M.M and L.P. acknowledge the support by the Minerva Center for Nonlinear Physics of Complex Systems.; Spatiotemporal Catalytic Patterns (SHEINTUCH S.I.) ; Conference date: 15-10-2000 Through 15-10-2000",
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Download

TY - JOUR

T1 - Dynamics of subsurface oxygen formation in catalytic water formation on a Rh(1 1 1) surface

T2 - Spatiotemporal Catalytic Patterns (SHEINTUCH S.I.)

AU - Monine, M. I.

AU - Schaak, A.

AU - Rubinstein, B. Y.

AU - Imbihl, R.

AU - Pismen, L. M.

N1 - Funding Information: This work has been supported by the German–Israeli Science Foundation. M.M and L.P. acknowledge the support by the Minerva Center for Nonlinear Physics of Complex Systems.

PY - 2001/11/1

Y1 - 2001/11/1

N2 - The catalytic O2+H2 reaction on Rh(1 1 1) has been investigated in the 10-6-10-5mbar range using photoelectron emission microscopy as spatially resolving method. While the reaction without pretreatment of the sample displays simple bistable behavior, we find that after extended pre-oxidation of the sample (pO(2) = 2 × 10-4mbar,T = 770 K, tOX > 24 h), low work function (LWF) areas develop dynamically in the collision of reaction fronts. The LWF areas have been assigned to subsurface oxygen. We present a simple three-variable model which reproduces the formation of LWF areas in the collision of reaction fronts.

AB - The catalytic O2+H2 reaction on Rh(1 1 1) has been investigated in the 10-6-10-5mbar range using photoelectron emission microscopy as spatially resolving method. While the reaction without pretreatment of the sample displays simple bistable behavior, we find that after extended pre-oxidation of the sample (pO(2) = 2 × 10-4mbar,T = 770 K, tOX > 24 h), low work function (LWF) areas develop dynamically in the collision of reaction fronts. The LWF areas have been assigned to subsurface oxygen. We present a simple three-variable model which reproduces the formation of LWF areas in the collision of reaction fronts.

KW - Low work function

KW - Photoelectron emission microscopy

KW - Subsurface oxygen formation

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U2 - 10.1016/S0920-5861(01)00340-6

DO - 10.1016/S0920-5861(01)00340-6

M3 - Conference article

AN - SCOPUS:0035504255

VL - 70

SP - 321

EP - 330

JO - Catalysis today

JF - Catalysis today

SN - 0920-5861

IS - 4

Y2 - 15 October 2000 through 15 October 2000

ER -