Adsorption states of NO2 over water-ice films formed on Au(111)

Shinri Sato, Dai Yamaguchi, Kikuko Nakagawa, Yoshihiko Inoue, Akihiro Yabushita, Masahiro Kawasaki

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

The adsorption states of NO2 over amorphous and crystalline water-ice films formed on an Au(111) surface have been studied in an ultrahigh vacuum system by the temperature programmed desorption (TPD) technique and IR absorption-reflection spectroscopy (IRAS). The ice films are prepared by deposition of gas phase water on the Au substrate at <100 K for amorphous ice and at 140 K for crystalline ice. The surface of amorphous ice is characterized by the high density of free OH, while that of crystalline ice is characterized by grain boundaries and the lack of free OH. TPD for pure ice shows only one desorption peak of H2O, while after NO2 adsorption on it an additional weak H2O desorption peak appears at 185 K. This higher-temperature peak is attributable to decomposition of NO2-H2O adducts. IRAS measurements revealed that NO2 adsorbs on ice surfaces as N2O4 with D2h symmetry and that neither N2O4 isomers such as D-isomers nor NOx (x = 1, 2, and 3) species are produced in the temperature range of 90-140 K. Interaction of the ice surfaces with NO2 (N2O4) as well as orientation of N2O4 adsorbed on the ice surfaces are investigated as a function of temperature. Thermal decomposition of NO2 adsorbed on the water-ice formed on an Au surface is reconfirmed, which has been reported by Wang and Koel. A possible mechanism for the NO2 decomposition is proposed.

Original languageEnglish
Pages (from-to)9533-9538
Number of pages6
JournalLangmuir
Volume16
Issue number24
DOIs
Publication statusPublished - Nov 28 2000
Externally publishedYes

Fingerprint

Ice
ice
Adsorption
adsorption
Water
water
desorption
Temperature programmed desorption
Crystalline materials
Isomers
Desorption
isomers
Spectroscopy
Decomposition
decomposition
temperature
vacuum systems
Ultrahigh vacuum
Temperature
spectroscopy

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

Cite this

Sato, S., Yamaguchi, D., Nakagawa, K., Inoue, Y., Yabushita, A., & Kawasaki, M. (2000). Adsorption states of NO2 over water-ice films formed on Au(111). Langmuir, 16(24), 9533-9538. https://doi.org/10.1021/la000628n

Adsorption states of NO2 over water-ice films formed on Au(111). / Sato, Shinri; Yamaguchi, Dai; Nakagawa, Kikuko; Inoue, Yoshihiko; Yabushita, Akihiro; Kawasaki, Masahiro.

In: Langmuir, Vol. 16, No. 24, 28.11.2000, p. 9533-9538.

Research output: Contribution to journalArticle

Sato, S, Yamaguchi, D, Nakagawa, K, Inoue, Y, Yabushita, A & Kawasaki, M 2000, 'Adsorption states of NO2 over water-ice films formed on Au(111)', Langmuir, vol. 16, no. 24, pp. 9533-9538. https://doi.org/10.1021/la000628n
Sato S, Yamaguchi D, Nakagawa K, Inoue Y, Yabushita A, Kawasaki M. Adsorption states of NO2 over water-ice films formed on Au(111). Langmuir. 2000 Nov 28;16(24):9533-9538. https://doi.org/10.1021/la000628n
Sato, Shinri ; Yamaguchi, Dai ; Nakagawa, Kikuko ; Inoue, Yoshihiko ; Yabushita, Akihiro ; Kawasaki, Masahiro. / Adsorption states of NO2 over water-ice films formed on Au(111). In: Langmuir. 2000 ; Vol. 16, No. 24. pp. 9533-9538.
@article{88888e47d33645559c1f488c69a4b54f,
title = "Adsorption states of NO2 over water-ice films formed on Au(111)",
abstract = "The adsorption states of NO2 over amorphous and crystalline water-ice films formed on an Au(111) surface have been studied in an ultrahigh vacuum system by the temperature programmed desorption (TPD) technique and IR absorption-reflection spectroscopy (IRAS). The ice films are prepared by deposition of gas phase water on the Au substrate at <100 K for amorphous ice and at 140 K for crystalline ice. The surface of amorphous ice is characterized by the high density of free OH, while that of crystalline ice is characterized by grain boundaries and the lack of free OH. TPD for pure ice shows only one desorption peak of H2O, while after NO2 adsorption on it an additional weak H2O desorption peak appears at 185 K. This higher-temperature peak is attributable to decomposition of NO2-H2O adducts. IRAS measurements revealed that NO2 adsorbs on ice surfaces as N2O4 with D2h symmetry and that neither N2O4 isomers such as D-isomers nor NOx (x = 1, 2, and 3) species are produced in the temperature range of 90-140 K. Interaction of the ice surfaces with NO2 (N2O4) as well as orientation of N2O4 adsorbed on the ice surfaces are investigated as a function of temperature. Thermal decomposition of NO2 adsorbed on the water-ice formed on an Au surface is reconfirmed, which has been reported by Wang and Koel. A possible mechanism for the NO2 decomposition is proposed.",
author = "Shinri Sato and Dai Yamaguchi and Kikuko Nakagawa and Yoshihiko Inoue and Akihiro Yabushita and Masahiro Kawasaki",
year = "2000",
month = "11",
day = "28",
doi = "10.1021/la000628n",
language = "English",
volume = "16",
pages = "9533--9538",
journal = "Langmuir",
issn = "0743-7463",
publisher = "American Chemical Society",
number = "24",

}

TY - JOUR

T1 - Adsorption states of NO2 over water-ice films formed on Au(111)

AU - Sato, Shinri

AU - Yamaguchi, Dai

AU - Nakagawa, Kikuko

AU - Inoue, Yoshihiko

AU - Yabushita, Akihiro

AU - Kawasaki, Masahiro

PY - 2000/11/28

Y1 - 2000/11/28

N2 - The adsorption states of NO2 over amorphous and crystalline water-ice films formed on an Au(111) surface have been studied in an ultrahigh vacuum system by the temperature programmed desorption (TPD) technique and IR absorption-reflection spectroscopy (IRAS). The ice films are prepared by deposition of gas phase water on the Au substrate at <100 K for amorphous ice and at 140 K for crystalline ice. The surface of amorphous ice is characterized by the high density of free OH, while that of crystalline ice is characterized by grain boundaries and the lack of free OH. TPD for pure ice shows only one desorption peak of H2O, while after NO2 adsorption on it an additional weak H2O desorption peak appears at 185 K. This higher-temperature peak is attributable to decomposition of NO2-H2O adducts. IRAS measurements revealed that NO2 adsorbs on ice surfaces as N2O4 with D2h symmetry and that neither N2O4 isomers such as D-isomers nor NOx (x = 1, 2, and 3) species are produced in the temperature range of 90-140 K. Interaction of the ice surfaces with NO2 (N2O4) as well as orientation of N2O4 adsorbed on the ice surfaces are investigated as a function of temperature. Thermal decomposition of NO2 adsorbed on the water-ice formed on an Au surface is reconfirmed, which has been reported by Wang and Koel. A possible mechanism for the NO2 decomposition is proposed.

AB - The adsorption states of NO2 over amorphous and crystalline water-ice films formed on an Au(111) surface have been studied in an ultrahigh vacuum system by the temperature programmed desorption (TPD) technique and IR absorption-reflection spectroscopy (IRAS). The ice films are prepared by deposition of gas phase water on the Au substrate at <100 K for amorphous ice and at 140 K for crystalline ice. The surface of amorphous ice is characterized by the high density of free OH, while that of crystalline ice is characterized by grain boundaries and the lack of free OH. TPD for pure ice shows only one desorption peak of H2O, while after NO2 adsorption on it an additional weak H2O desorption peak appears at 185 K. This higher-temperature peak is attributable to decomposition of NO2-H2O adducts. IRAS measurements revealed that NO2 adsorbs on ice surfaces as N2O4 with D2h symmetry and that neither N2O4 isomers such as D-isomers nor NOx (x = 1, 2, and 3) species are produced in the temperature range of 90-140 K. Interaction of the ice surfaces with NO2 (N2O4) as well as orientation of N2O4 adsorbed on the ice surfaces are investigated as a function of temperature. Thermal decomposition of NO2 adsorbed on the water-ice formed on an Au surface is reconfirmed, which has been reported by Wang and Koel. A possible mechanism for the NO2 decomposition is proposed.

UR - http://www.scopus.com/inward/record.url?scp=0034318467&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034318467&partnerID=8YFLogxK

U2 - 10.1021/la000628n

DO - 10.1021/la000628n

M3 - Article

AN - SCOPUS:0034318467

VL - 16

SP - 9533

EP - 9538

JO - Langmuir

JF - Langmuir

SN - 0743-7463

IS - 24

ER -