FT-IR spectroscopic study of the oxidation of chlorobenzene over Mn-based catalyst

Yan Liu; Weicheng Wu; Yejun Guan; Pinliang Ying; Can Li

doi:10.1021/la020125c

FT-IR spectroscopic study of the oxidation of chlorobenzene over Mn-based catalyst

Yan Liu, Weicheng Wu, Yejun Guan, Pinliang Ying, Can Li

CAS - Dalian Institute of Chemical Physics

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

62 Scopus citations

Abstract

Adsorption and oxidation of chlorobenzene on Al₂O₃, TiO₂-Al₂O₃, and MnO_x/TiO₂-Al₂O₃ have been studied by in situ Fourier transform infrared (FT-IR) spectroscopy. At room temperature, chlorobenzene is only physisorbed on Al₂O₃, TiO₂-Al₂O₃, and MnO_x/TiO₂-Al₂O₃, and gives the same IR spectrum as that for liquid-phase chlorobenzene. On Al₂O₃ no further interaction and reaction take place with treatment at higher temperatures (up to 773 K), while phenolates are observed for TiO₂-Al₂O₃ and MnO_x/TiO₂-Al₂O₃ at 773 K. When the adsorbed chlorobenzene coexists with oxygen, formates are detected for Al₂O₃, while acetates are additionally observed for TiO₂-Al₂O₃ above 573 K. For MnO_x/TiO_2-Al₂O₃, maleates are present at 573 and 673 K, while formates and acetates develop at 473 and 573 K. Almost all IR bands due to formates, acetates, and maleates disappear at 773 K, indicating that these oxygen-containing species are potential intermediates for the total oxidation of chlorobenzene.

Original language	English
Pages (from-to)	6229-6232
Number of pages	4
Journal	Langmuir
Volume	18
Issue number	16
DOIs	https://doi.org/10.1021/la020125c
State	Published - 6 Aug 2002
Externally published	Yes

Access to Document

10.1021/la020125c

Cite this

@article{68831dfdf8404165ad0ca3678a61cef2,

title = "FT-IR spectroscopic study of the oxidation of chlorobenzene over Mn-based catalyst",

abstract = "Adsorption and oxidation of chlorobenzene on Al2O3, TiO2-Al2O3, and MnOx/TiO2-Al2O3 have been studied by in situ Fourier transform infrared (FT-IR) spectroscopy. At room temperature, chlorobenzene is only physisorbed on Al2O3, TiO2-Al2O3, and MnOx/TiO2-Al2O3, and gives the same IR spectrum as that for liquid-phase chlorobenzene. On Al2O3 no further interaction and reaction take place with treatment at higher temperatures (up to 773 K), while phenolates are observed for TiO2-Al2O3 and MnOx/TiO2-Al2O3 at 773 K. When the adsorbed chlorobenzene coexists with oxygen, formates are detected for Al2O3, while acetates are additionally observed for TiO2-Al2O3 above 573 K. For MnOx/TiO2-Al2O3, maleates are present at 573 and 673 K, while formates and acetates develop at 473 and 573 K. Almost all IR bands due to formates, acetates, and maleates disappear at 773 K, indicating that these oxygen-containing species are potential intermediates for the total oxidation of chlorobenzene.",

author = "Yan Liu and Weicheng Wu and Yejun Guan and Pinliang Ying and Can Li",

year = "2002",

month = aug,

day = "6",

doi = "10.1021/la020125c",

language = "英语",

volume = "18",

pages = "6229--6232",

journal = "Langmuir",

issn = "0743-7463",

publisher = "American Chemical Society",

number = "16",

}

TY - JOUR

T1 - FT-IR spectroscopic study of the oxidation of chlorobenzene over Mn-based catalyst

AU - Liu, Yan

AU - Wu, Weicheng

AU - Guan, Yejun

AU - Ying, Pinliang

AU - Li, Can

PY - 2002/8/6

Y1 - 2002/8/6

N2 - Adsorption and oxidation of chlorobenzene on Al2O3, TiO2-Al2O3, and MnOx/TiO2-Al2O3 have been studied by in situ Fourier transform infrared (FT-IR) spectroscopy. At room temperature, chlorobenzene is only physisorbed on Al2O3, TiO2-Al2O3, and MnOx/TiO2-Al2O3, and gives the same IR spectrum as that for liquid-phase chlorobenzene. On Al2O3 no further interaction and reaction take place with treatment at higher temperatures (up to 773 K), while phenolates are observed for TiO2-Al2O3 and MnOx/TiO2-Al2O3 at 773 K. When the adsorbed chlorobenzene coexists with oxygen, formates are detected for Al2O3, while acetates are additionally observed for TiO2-Al2O3 above 573 K. For MnOx/TiO2-Al2O3, maleates are present at 573 and 673 K, while formates and acetates develop at 473 and 573 K. Almost all IR bands due to formates, acetates, and maleates disappear at 773 K, indicating that these oxygen-containing species are potential intermediates for the total oxidation of chlorobenzene.

AB - Adsorption and oxidation of chlorobenzene on Al2O3, TiO2-Al2O3, and MnOx/TiO2-Al2O3 have been studied by in situ Fourier transform infrared (FT-IR) spectroscopy. At room temperature, chlorobenzene is only physisorbed on Al2O3, TiO2-Al2O3, and MnOx/TiO2-Al2O3, and gives the same IR spectrum as that for liquid-phase chlorobenzene. On Al2O3 no further interaction and reaction take place with treatment at higher temperatures (up to 773 K), while phenolates are observed for TiO2-Al2O3 and MnOx/TiO2-Al2O3 at 773 K. When the adsorbed chlorobenzene coexists with oxygen, formates are detected for Al2O3, while acetates are additionally observed for TiO2-Al2O3 above 573 K. For MnOx/TiO2-Al2O3, maleates are present at 573 and 673 K, while formates and acetates develop at 473 and 573 K. Almost all IR bands due to formates, acetates, and maleates disappear at 773 K, indicating that these oxygen-containing species are potential intermediates for the total oxidation of chlorobenzene.

UR - https://www.scopus.com/pages/publications/0037031411

U2 - 10.1021/la020125c

DO - 10.1021/la020125c

M3 - 文章

AN - SCOPUS:0037031411

SN - 0743-7463

VL - 18

SP - 6229

EP - 6232

JO - Langmuir

JF - Langmuir

IS - 16

ER -

FT-IR spectroscopic study of the oxidation of chlorobenzene over Mn-based catalyst

Abstract

Access to Document

Other files and links

Fingerprint

Cite this