High-pressure NO-induced mixed phase on Rh(111)

Chemically driven replacement

Ryo Toyoshima, Masaaki Yoshida, Yuji Monya, Kazuma Suzuki, Kenta Amemiya, Kazuhiko Mase, Bongjin Simon Mun, Hiroshi Kondoh

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The interaction between nitric oxide (NO) and Rh(111) surface has been investigated by a combination of near-ambient-pressure X-ray photoelectron spectroscopy, low energy electron diffraction, and density functional theory calculations. Under low-temperature and ultrahigh vacuum conditions, our experimental and computational results are consistent with the previous reports for NO adsorption phases on Rh(111). While at room temperature and upon exposure to gaseous NO of 100 mTorr, NO molecules partially dissociate followed by chemical removal of atomic nitrogen by NO from the surface, and the remaining atomic oxygen and NO form a NO/O mixed phase. Interestingly, this mixed phase is stable even after NO evacuation and shows a well-ordered (2 × 2) periodicity. These observations provide a new insight into the NO/Rh(111) system under near-ambient-pressure condition.

Original languageEnglish
Pages (from-to)3033-3039
Number of pages7
JournalJournal of Physical Chemistry C
Volume119
Issue number6
DOIs
Publication statusPublished - 2015 Feb 12

Fingerprint

Nitric oxide
nitric oxide
Nitric Oxide
Low energy electron diffraction
Ultrahigh vacuum
ultrahigh vacuum
Density functional theory
Carrier concentration
periodic variations
Nitrogen
X ray photoelectron spectroscopy
electron diffraction
photoelectron spectroscopy
Oxygen
density functional theory
Adsorption
nitrogen
Temperature
vacuum
Molecules

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films
  • Energy(all)

Cite this

High-pressure NO-induced mixed phase on Rh(111) : Chemically driven replacement. / Toyoshima, Ryo; Yoshida, Masaaki; Monya, Yuji; Suzuki, Kazuma; Amemiya, Kenta; Mase, Kazuhiko; Mun, Bongjin Simon; Kondoh, Hiroshi.

In: Journal of Physical Chemistry C, Vol. 119, No. 6, 12.02.2015, p. 3033-3039.

Research output: Contribution to journalArticle

Toyoshima, Ryo ; Yoshida, Masaaki ; Monya, Yuji ; Suzuki, Kazuma ; Amemiya, Kenta ; Mase, Kazuhiko ; Mun, Bongjin Simon ; Kondoh, Hiroshi. / High-pressure NO-induced mixed phase on Rh(111) : Chemically driven replacement. In: Journal of Physical Chemistry C. 2015 ; Vol. 119, No. 6. pp. 3033-3039.
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