SFG study of formic acid on a Pt(110)-(1 × 2) surface

N. Watanabe; K. Iwatsu; A. Yamakata; T. Ohtani; J. Kubota; J. N. Kondo; A. Wada; K. Domen; C. Hirose

doi:10.1016/0039-6028(96)00239-7

SFG study of formic acid on a Pt(110)-(1 × 2) surface

N. Watanabe, K. Iwatsu, A. Yamakata, T. Ohtani, J. Kubota, J. N. Kondo, A. Wada, K. Domen, C. Hirose

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

12 Citations (Scopus)

Abstract

Infrared-visible sum frequency generation (IR-vis SFG) spectroscopy, infrared reflection absorption spectroscopy (IRAS), and temperature programmed desorption (TPD) spectroscopy were used to investigate the systems prepared by the adsorption of formic acid (HCOOH) onto a Pt(110)-(1 × 2) reconstructed surface. In the SFG spectra, we observed that several vibrational bands which can be assigned to the CH stretching, the OH stretching and combination modes of formic acid adsorbed in multilayers show a strong dose temperature dependence. From the IRAS measurements, it was found that the formic acid adsorbed in multilayers forms the chain structure which is called the α-crystalline form. By combining the results of the dose temperature dependence of SFG spectra with that of IRAS spectra, we conclude that the length of the chain, the orientation of the chain axis, and the size of the single crystalline region of formic acid strongly depend on the dose temperature. Furthermore, we found that the SFG signal of the C-H stretching band shows the intensity oscillation during the exposure to formic acid.

Original language	English
Pages (from-to)	651-655
Number of pages	5
Journal	Surface Science
Volume	357-358
DOIs	https://doi.org/10.1016/0039-6028(96)00239-7
Publication status	Published - Jun 20 1996
Externally published	Yes

Keywords

Carboxylic acid
Infrared absorption spectroscopy
Low index single crystal surfaces
Platinum
Sum frequency generation
Thermal desorption spectroscopy
Vibrations of adsorbed molecules

ASJC Scopus subject areas

Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

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10.1016/0039-6028(96)00239-7

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title = "SFG study of formic acid on a Pt(110)-(1 × 2) surface",

abstract = "Infrared-visible sum frequency generation (IR-vis SFG) spectroscopy, infrared reflection absorption spectroscopy (IRAS), and temperature programmed desorption (TPD) spectroscopy were used to investigate the systems prepared by the adsorption of formic acid (HCOOH) onto a Pt(110)-(1 × 2) reconstructed surface. In the SFG spectra, we observed that several vibrational bands which can be assigned to the CH stretching, the OH stretching and combination modes of formic acid adsorbed in multilayers show a strong dose temperature dependence. From the IRAS measurements, it was found that the formic acid adsorbed in multilayers forms the chain structure which is called the α-crystalline form. By combining the results of the dose temperature dependence of SFG spectra with that of IRAS spectra, we conclude that the length of the chain, the orientation of the chain axis, and the size of the single crystalline region of formic acid strongly depend on the dose temperature. Furthermore, we found that the SFG signal of the C-H stretching band shows the intensity oscillation during the exposure to formic acid.",

keywords = "Carboxylic acid, Infrared absorption spectroscopy, Low index single crystal surfaces, Platinum, Sum frequency generation, Thermal desorption spectroscopy, Vibrations of adsorbed molecules",

author = "N. Watanabe and K. Iwatsu and A. Yamakata and T. Ohtani and J. Kubota and Kondo, {J. N.} and A. Wada and K. Domen and C. Hirose",

note = "Funding Information: The Present work was supported by a Grant-in-Aid For Scientific Research (A) granted by The Ministry of Education, Science and Culture of Japan Grant No. 04403004.",

year = "1996",

month = jun,

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doi = "10.1016/0039-6028(96)00239-7",

language = "English",

volume = "357-358",

pages = "651--655",

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TY - JOUR

T1 - SFG study of formic acid on a Pt(110)-(1 × 2) surface

AU - Watanabe, N.

AU - Iwatsu, K.

AU - Yamakata, A.

AU - Ohtani, T.

AU - Kubota, J.

AU - Kondo, J. N.

AU - Wada, A.

AU - Domen, K.

AU - Hirose, C.

N1 - Funding Information: The Present work was supported by a Grant-in-Aid For Scientific Research (A) granted by The Ministry of Education, Science and Culture of Japan Grant No. 04403004.

PY - 1996/6/20

Y1 - 1996/6/20

N2 - Infrared-visible sum frequency generation (IR-vis SFG) spectroscopy, infrared reflection absorption spectroscopy (IRAS), and temperature programmed desorption (TPD) spectroscopy were used to investigate the systems prepared by the adsorption of formic acid (HCOOH) onto a Pt(110)-(1 × 2) reconstructed surface. In the SFG spectra, we observed that several vibrational bands which can be assigned to the CH stretching, the OH stretching and combination modes of formic acid adsorbed in multilayers show a strong dose temperature dependence. From the IRAS measurements, it was found that the formic acid adsorbed in multilayers forms the chain structure which is called the α-crystalline form. By combining the results of the dose temperature dependence of SFG spectra with that of IRAS spectra, we conclude that the length of the chain, the orientation of the chain axis, and the size of the single crystalline region of formic acid strongly depend on the dose temperature. Furthermore, we found that the SFG signal of the C-H stretching band shows the intensity oscillation during the exposure to formic acid.

AB - Infrared-visible sum frequency generation (IR-vis SFG) spectroscopy, infrared reflection absorption spectroscopy (IRAS), and temperature programmed desorption (TPD) spectroscopy were used to investigate the systems prepared by the adsorption of formic acid (HCOOH) onto a Pt(110)-(1 × 2) reconstructed surface. In the SFG spectra, we observed that several vibrational bands which can be assigned to the CH stretching, the OH stretching and combination modes of formic acid adsorbed in multilayers show a strong dose temperature dependence. From the IRAS measurements, it was found that the formic acid adsorbed in multilayers forms the chain structure which is called the α-crystalline form. By combining the results of the dose temperature dependence of SFG spectra with that of IRAS spectra, we conclude that the length of the chain, the orientation of the chain axis, and the size of the single crystalline region of formic acid strongly depend on the dose temperature. Furthermore, we found that the SFG signal of the C-H stretching band shows the intensity oscillation during the exposure to formic acid.

KW - Carboxylic acid

KW - Infrared absorption spectroscopy

KW - Low index single crystal surfaces

KW - Platinum

KW - Sum frequency generation

KW - Thermal desorption spectroscopy

KW - Vibrations of adsorbed molecules

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JF - Surface Science

ER -

SFG study of formic acid on a Pt(110)-(1 × 2) surface

Abstract

Keywords

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