Structure and Dynamics of Dense Monolayers of NO Adsorbed on Rh(111) in Equilibrium with the Gas Phase in the Torr Pressure Range
- 7 May 2001
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 86 (19), 4330-4333
- https://doi.org/10.1103/physrevlett.86.4330
Abstract
Using scanning tunneling microscopy, we show the phase transition between new structures of NO on Rh(111) in equilibrium with the gas phase near 300 K, in the Torr pressure range. Two phases with and periodicity transform into each other as the pressure and temperature change around the equilibrium line. By measuring and at coexistence, we determined the heat of adsorption in the structure. From the phase boundary dynamics, the activation energy barrier between phases were estimated. The results demonstrate that unique information can be obtained from high-pressure and high-temperature studies.
Keywords
This publication has 6 references indexed in Scilit:
- High pressure, high temperature scanning tunneling microscopyJournal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures, 1999
- Reanalysis of the Rh(111)+(2×2)-3NO structure using automated tensor LEEDSurface Science, 1998
- High Pressure Adsorbate Structures Studied by Scanning Tunneling Microscopy: CO on Pt(111) in Equilibrium with the Gas PhasePhysical Review Letters, 1998
- Chemisorption geometry of NO on Rh(111) by X-ray photoelectron diffractionSurface Science, 1996
- A variable pressure/temperature scanning tunneling microscope for surface science and catalysis studiesReview of Scientific Instruments, 1993
- Statistical Mechanics of Adsorption. V. Thermodynamics and Heat of AdsorptionThe Journal of Chemical Physics, 1949