Thermal reactions of mercaptoethanol on Cu(1 0 0)

Jain Jung Shih; Yung Hsuan Liao; Kuan Hung Kuo; Jong Liang Lin

doi:10.1016/j.susc.2004.11.017

Thermal reactions of mercaptoethanol on Cu(1 0 0)

Jain Jung Shih, Yung Hsuan Liao, Kuan Hung Kuo, Jong Liang Lin

Department of Chemistry

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

2 Citations (Scopus)

Abstract

Reflection-absorption infrared spectroscopy (RAIRS) and temperature-programmed reaction/desorption (TPR/D) have been employed to investigate the thermal decomposition of HSCH₂CH₂OH on Cu(1 0 0) and the surface intermediates involved. The surface reactions of HSCH₂CH₂OH proceed via several stages in sequence, including production of surface intermediates of -SCH₂CH ₂OH, -SCH₂CH₂O-, and the species possibly containing >C=C=O or >C=C=S. Carbon-containing products of CH ₄, C₂H₄, and CH₃CHO evolve between 300 and 500 K and C₂H₄ is the major product. Desorption of sulfur-containing products is not observed. HSCH₂CH₂OH dissociates on Cu(1 0 0) and oxygen-precovered Cu(1 0 0) to form -SCH ₂CH₂OH at dosing temperature of 115 K. However -SCH ₂CH₂O- and the species containing >C=C=O or >C=C=S are generated at lower temperatures on oxygen-precovered Cu(1 0 0). C ₂H₄ is also the major desorption product from HSCH ₂CH₂OH on oxygen-precovered Cu(1 0 0).

Original language	English
Pages (from-to)	163-170
Number of pages	8
Journal	Surface Science
Volume	575
Issue number	1-2
DOIs	https://doi.org/10.1016/j.susc.2004.11.017
Publication status	Published - 2005 Jan 20

All Science Journal Classification (ASJC) codes

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

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title = "Thermal reactions of mercaptoethanol on Cu(1 0 0)",

abstract = "Reflection-absorption infrared spectroscopy (RAIRS) and temperature-programmed reaction/desorption (TPR/D) have been employed to investigate the thermal decomposition of HSCH2CH2OH on Cu(1 0 0) and the surface intermediates involved. The surface reactions of HSCH2CH2OH proceed via several stages in sequence, including production of surface intermediates of -SCH2CH 2OH, -SCH2CH2O-, and the species possibly containing >C=C=O or >C=C=S. Carbon-containing products of CH 4, C2H4, and CH3CHO evolve between 300 and 500 K and C2H4 is the major product. Desorption of sulfur-containing products is not observed. HSCH2CH2OH dissociates on Cu(1 0 0) and oxygen-precovered Cu(1 0 0) to form -SCH 2CH2OH at dosing temperature of 115 K. However -SCH 2CH2O- and the species containing >C=C=O or >C=C=S are generated at lower temperatures on oxygen-precovered Cu(1 0 0). C 2H4 is also the major desorption product from HSCH 2CH2OH on oxygen-precovered Cu(1 0 0).",

author = "Shih, {Jain Jung} and Liao, {Yung Hsuan} and Kuo, {Kuan Hung} and Lin, {Jong Liang}",

year = "2005",

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doi = "10.1016/j.susc.2004.11.017",

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journal = "Surface Science",

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T1 - Thermal reactions of mercaptoethanol on Cu(1 0 0)

AU - Shih, Jain Jung

AU - Liao, Yung Hsuan

AU - Kuo, Kuan Hung

AU - Lin, Jong Liang

PY - 2005/1/20

Y1 - 2005/1/20

N2 - Reflection-absorption infrared spectroscopy (RAIRS) and temperature-programmed reaction/desorption (TPR/D) have been employed to investigate the thermal decomposition of HSCH2CH2OH on Cu(1 0 0) and the surface intermediates involved. The surface reactions of HSCH2CH2OH proceed via several stages in sequence, including production of surface intermediates of -SCH2CH 2OH, -SCH2CH2O-, and the species possibly containing >C=C=O or >C=C=S. Carbon-containing products of CH 4, C2H4, and CH3CHO evolve between 300 and 500 K and C2H4 is the major product. Desorption of sulfur-containing products is not observed. HSCH2CH2OH dissociates on Cu(1 0 0) and oxygen-precovered Cu(1 0 0) to form -SCH 2CH2OH at dosing temperature of 115 K. However -SCH 2CH2O- and the species containing >C=C=O or >C=C=S are generated at lower temperatures on oxygen-precovered Cu(1 0 0). C 2H4 is also the major desorption product from HSCH 2CH2OH on oxygen-precovered Cu(1 0 0).

AB - Reflection-absorption infrared spectroscopy (RAIRS) and temperature-programmed reaction/desorption (TPR/D) have been employed to investigate the thermal decomposition of HSCH2CH2OH on Cu(1 0 0) and the surface intermediates involved. The surface reactions of HSCH2CH2OH proceed via several stages in sequence, including production of surface intermediates of -SCH2CH 2OH, -SCH2CH2O-, and the species possibly containing >C=C=O or >C=C=S. Carbon-containing products of CH 4, C2H4, and CH3CHO evolve between 300 and 500 K and C2H4 is the major product. Desorption of sulfur-containing products is not observed. HSCH2CH2OH dissociates on Cu(1 0 0) and oxygen-precovered Cu(1 0 0) to form -SCH 2CH2OH at dosing temperature of 115 K. However -SCH 2CH2O- and the species containing >C=C=O or >C=C=S are generated at lower temperatures on oxygen-precovered Cu(1 0 0). C 2H4 is also the major desorption product from HSCH 2CH2OH on oxygen-precovered Cu(1 0 0).

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