Chemisorption of NO on Pt(111) studied by ARPES

K. Irokawa; H. Arai; J. Kobayashi; T. Kioka; S. Sugai; H. Miki; H. Kato

doi:10.1016/0039-6028(96)00107-0

Chemisorption of NO on Pt(111) studied by ARPES

K. Irokawa, H. Arai, J. Kobayashi, T. Kioka, S. Sugai, H. Miki, H. Kato

Department of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

The chemisorption of NO on a Pt(111) surface has been studied by angle-resolved photoelectron spectroscopy (ARPES). The NO molecular orbitals appear at 2.0 and 9.5 eV below the Fermi level after full coverage of NO at 150 K. These molecular orbitals originate from 2π and 1π+5σ orbitals, respectively. The order of the 1π and 5σ orbitals of NO adsorbed on the Pt(111) surface is the reverse of that of gaseous NO. The 1π+5σ orbital has a dispersion along the Γ̄Κ̄ direction, with a width of about 0.4 eV and a maximum at 2/3 of the Γ̄Κ̄ period for the clean Pt(111) surface. It suggests that the structure of the NO-adsorbed Pt(111) surface has the 3/2 periodicity to the Γ̄Κ̄ direction, although the diffuse (2 × 2) structure is observed for the NO-adsorbed Pt(111) surface by low-energy electron diffraction (LEED) at 150 K.

Original language	English
Pages (from-to)	274-278
Number of pages	5
Journal	Surface Science
Volume	357-358
DOIs	https://doi.org/10.1016/0039-6028(96)00107-0
Publication status	Published - 20 Jun 1996

Keywords

Angle-resolved photoemission
Chemisorption
Low index single crystal surfaces
Metallic surfaces
Nitrogen oxides
Platinum

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10.1016/0039-6028(96)00107-0

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title = "Chemisorption of NO on Pt(111) studied by ARPES",

abstract = "The chemisorption of NO on a Pt(111) surface has been studied by angle-resolved photoelectron spectroscopy (ARPES). The NO molecular orbitals appear at 2.0 and 9.5 eV below the Fermi level after full coverage of NO at 150 K. These molecular orbitals originate from 2π and 1π+5σ orbitals, respectively. The order of the 1π and 5σ orbitals of NO adsorbed on the Pt(111) surface is the reverse of that of gaseous NO. The 1π+5σ orbital has a dispersion along the {\=Γ}{\=Κ} direction, with a width of about 0.4 eV and a maximum at 2/3 of the {\=Γ}{\=Κ} period for the clean Pt(111) surface. It suggests that the structure of the NO-adsorbed Pt(111) surface has the 3/2 periodicity to the {\=Γ}{\=Κ} direction, although the diffuse (2 × 2) structure is observed for the NO-adsorbed Pt(111) surface by low-energy electron diffraction (LEED) at 150 K.",

keywords = "Angle-resolved photoemission, Chemisorption, Low index single crystal surfaces, Metallic surfaces, Nitrogen oxides, Platinum",

author = "K. Irokawa and H. Arai and J. Kobayashi and T. Kioka and S. Sugai and H. Miki and H. Kato",

year = "1996",

month = jun,

day = "20",

doi = "10.1016/0039-6028(96)00107-0",

language = "English",

volume = "357-358",

pages = "274--278",

journal = "Surface Science",

issn = "0039-6028",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Chemisorption of NO on Pt(111) studied by ARPES

AU - Irokawa, K.

AU - Arai, H.

AU - Kobayashi, J.

AU - Kioka, T.

AU - Sugai, S.

AU - Miki, H.

AU - Kato, H.

PY - 1996/6/20

Y1 - 1996/6/20

N2 - The chemisorption of NO on a Pt(111) surface has been studied by angle-resolved photoelectron spectroscopy (ARPES). The NO molecular orbitals appear at 2.0 and 9.5 eV below the Fermi level after full coverage of NO at 150 K. These molecular orbitals originate from 2π and 1π+5σ orbitals, respectively. The order of the 1π and 5σ orbitals of NO adsorbed on the Pt(111) surface is the reverse of that of gaseous NO. The 1π+5σ orbital has a dispersion along the Γ̄Κ̄ direction, with a width of about 0.4 eV and a maximum at 2/3 of the Γ̄Κ̄ period for the clean Pt(111) surface. It suggests that the structure of the NO-adsorbed Pt(111) surface has the 3/2 periodicity to the Γ̄Κ̄ direction, although the diffuse (2 × 2) structure is observed for the NO-adsorbed Pt(111) surface by low-energy electron diffraction (LEED) at 150 K.

AB - The chemisorption of NO on a Pt(111) surface has been studied by angle-resolved photoelectron spectroscopy (ARPES). The NO molecular orbitals appear at 2.0 and 9.5 eV below the Fermi level after full coverage of NO at 150 K. These molecular orbitals originate from 2π and 1π+5σ orbitals, respectively. The order of the 1π and 5σ orbitals of NO adsorbed on the Pt(111) surface is the reverse of that of gaseous NO. The 1π+5σ orbital has a dispersion along the Γ̄Κ̄ direction, with a width of about 0.4 eV and a maximum at 2/3 of the Γ̄Κ̄ period for the clean Pt(111) surface. It suggests that the structure of the NO-adsorbed Pt(111) surface has the 3/2 periodicity to the Γ̄Κ̄ direction, although the diffuse (2 × 2) structure is observed for the NO-adsorbed Pt(111) surface by low-energy electron diffraction (LEED) at 150 K.

KW - Angle-resolved photoemission

KW - Chemisorption

KW - Low index single crystal surfaces

KW - Metallic surfaces

KW - Nitrogen oxides

KW - Platinum

UR - https://www.scopus.com/pages/publications/0030169278

U2 - 10.1016/0039-6028(96)00107-0

DO - 10.1016/0039-6028(96)00107-0

M3 - Article

AN - SCOPUS:0030169278

SN - 0039-6028

VL - 357-358

SP - 274

EP - 278

JO - Surface Science

JF - Surface Science

ER -

Chemisorption of NO on Pt(111) studied by ARPES

Abstract

Keywords

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