Crotonaldehyde formation from decomposition of ICH2CH 2OH on powdered TiO2

Wen Chun Wu; Shang Ju Yang; Chia Hsun Ho; Yi Shiue Lin; Li Fen Liao; Jong Liang Lin

doi:10.1021/jp060483e

Crotonaldehyde formation from decomposition of ICH₂CH ₂OH on powdered TiO₂

Wen Chun Wu, Shang Ju Yang, Chia Hsun Ho, Yi Shiue Lin, Li Fen Liao, Jong Liang Lin

Department of Chemistry

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

11 Citations (Scopus)

Abstract

Adsorption and reactions of 2-iodoethanol on TiO₂ have been studied by Fourier transform infrared spectroscopy. ICH₂CH ₂OH possesses two reactive centers of C-I and C-OH. It is found that its decomposition leads to the formation of crotonaldehyde on TiO₂. A reaction sequence of ICH₂CH₂OH → ICH ₂CH₂O- → CH₃CHO → CH ₃CH=CH-CHO is proposed. Although the decomposition routes of C ₂H₅OH and C₂H₅I, both forming C ₂H₅O- on TiO₂, suggest that -OCH ₂CH₂O- may play a role in the crotonaldehyde formation, reaction of HOCH₂CH₂OH on TiO₂ shows that this is not the case. Adsorbed H₂O is formed in the ICH ₂-CH₂OH decomposition on TiO₂; however, it is found that ICH=CH₂, possibly generated by ICH₂CH ₂OH dehydration, is not important in the crotonaldehyde formation.

Original language	English
Pages (from-to)	9627-9631
Number of pages	5
Journal	Journal of Physical Chemistry B
Volume	110
Issue number	19
DOIs	https://doi.org/10.1021/jp060483e
Publication status	Published - 2006 May 18

All Science Journal Classification (ASJC) codes

Physical and Theoretical Chemistry
Surfaces, Coatings and Films
Materials Chemistry

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@article{19b975578dd14efa87c402f95632f06a,

title = "Crotonaldehyde formation from decomposition of ICH2CH 2OH on powdered TiO2",

abstract = "Adsorption and reactions of 2-iodoethanol on TiO2 have been studied by Fourier transform infrared spectroscopy. ICH2CH 2OH possesses two reactive centers of C-I and C-OH. It is found that its decomposition leads to the formation of crotonaldehyde on TiO2. A reaction sequence of ICH2CH2OH → ICH 2CH2O- → CH3CHO → CH 3CH=CH-CHO is proposed. Although the decomposition routes of C 2H5OH and C2H5I, both forming C 2H5O- on TiO2, suggest that -OCH 2CH2O- may play a role in the crotonaldehyde formation, reaction of HOCH2CH2OH on TiO2 shows that this is not the case. Adsorbed H2O is formed in the ICH 2-CH2OH decomposition on TiO2; however, it is found that ICH=CH2, possibly generated by ICH2CH 2OH dehydration, is not important in the crotonaldehyde formation.",

author = "Wu, {Wen Chun} and Yang, {Shang Ju} and Ho, {Chia Hsun} and Lin, {Yi Shiue} and Liao, {Li Fen} and Lin, {Jong Liang}",

year = "2006",

month = may,

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doi = "10.1021/jp060483e",

language = "English",

volume = "110",

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journal = "Journal of Physical Chemistry B",

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T1 - Crotonaldehyde formation from decomposition of ICH2CH 2OH on powdered TiO2

AU - Wu, Wen Chun

AU - Yang, Shang Ju

AU - Ho, Chia Hsun

AU - Lin, Yi Shiue

AU - Liao, Li Fen

AU - Lin, Jong Liang

PY - 2006/5/18

Y1 - 2006/5/18

N2 - Adsorption and reactions of 2-iodoethanol on TiO2 have been studied by Fourier transform infrared spectroscopy. ICH2CH 2OH possesses two reactive centers of C-I and C-OH. It is found that its decomposition leads to the formation of crotonaldehyde on TiO2. A reaction sequence of ICH2CH2OH → ICH 2CH2O- → CH3CHO → CH 3CH=CH-CHO is proposed. Although the decomposition routes of C 2H5OH and C2H5I, both forming C 2H5O- on TiO2, suggest that -OCH 2CH2O- may play a role in the crotonaldehyde formation, reaction of HOCH2CH2OH on TiO2 shows that this is not the case. Adsorbed H2O is formed in the ICH 2-CH2OH decomposition on TiO2; however, it is found that ICH=CH2, possibly generated by ICH2CH 2OH dehydration, is not important in the crotonaldehyde formation.

AB - Adsorption and reactions of 2-iodoethanol on TiO2 have been studied by Fourier transform infrared spectroscopy. ICH2CH 2OH possesses two reactive centers of C-I and C-OH. It is found that its decomposition leads to the formation of crotonaldehyde on TiO2. A reaction sequence of ICH2CH2OH → ICH 2CH2O- → CH3CHO → CH 3CH=CH-CHO is proposed. Although the decomposition routes of C 2H5OH and C2H5I, both forming C 2H5O- on TiO2, suggest that -OCH 2CH2O- may play a role in the crotonaldehyde formation, reaction of HOCH2CH2OH on TiO2 shows that this is not the case. Adsorbed H2O is formed in the ICH 2-CH2OH decomposition on TiO2; however, it is found that ICH=CH2, possibly generated by ICH2CH 2OH dehydration, is not important in the crotonaldehyde formation.

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JO - Journal of Physical Chemistry B

JF - Journal of Physical Chemistry B

IS - 19

ER -

Crotonaldehyde formation from decomposition of ICH₂CH ₂OH on powdered TiO₂

Abstract

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