Benzene oxidation with ozone over MnOx/SBA-15 catalysts

Mingshi Jin; Jung Hwan Kim; Ji Man Kim; Jong Ki Jeon; Jongsoo Jurng; Gwi Nam Bae; Young Kwon Park

doi:10.1016/j.cattod.2012.09.026

Benzene oxidation with ozone over MnO_x/SBA-15 catalysts

Mingshi Jin, Jung Hwan Kim, Ji Man Kim, Jong Ki Jeon, Jongsoo Jurng, Gwi Nam Bae, Young Kwon Park

School of Environmental Engineering

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

46 Scopus citations

Abstract

Catalytic oxidation of benzene with ozone has been studied using manganese oxides with two different manganese precursors, Mn(NO₃)₂ and Mn(CH₃COO)₂, supported on SBA-15 (MnO _x/SBA-15). The catalysts were characterized by X-ray diffraction, N₂ adsorption-desorption, Raman spectroscopy, and H ₂-temperature programmed reduction. The manganese nitrate (MN) precursor primarily resulted in large particles on the silica support, while the manganese acetate (MA) precursor mainly resulted in a highly dispersed manganese oxide on the silica support. The catalytic activity was dependent upon ozone concentration, reaction times, and the amount of Mn loading. Higher benzene conversion, O₃ conversion, and CO_x yield were observed for MnO_x-MA/SBA-15 catalyst over MnO_x-MN/SBA-15, due to the highly dispersed manganese oxides on the supports, and the higher oxygen mobility. The 15 wt% MnO_x-MA/SBA-15 catalyst shows the highest catalytic activity of all the catalysts considered in this study.

Original language	English
Pages (from-to)	108-113
Number of pages	6
Journal	Catalysis Today
Volume	204
DOIs	https://doi.org/10.1016/j.cattod.2012.09.026
State	Published - 15 Apr 2013

Keywords

Benzene
Catalytic oxidation
Mn acetate
Mn nitrate
MnO/SBA-15
Ozone

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10.1016/j.cattod.2012.09.026

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title = "Benzene oxidation with ozone over MnOx/SBA-15 catalysts",

abstract = "Catalytic oxidation of benzene with ozone has been studied using manganese oxides with two different manganese precursors, Mn(NO3)2 and Mn(CH3COO)2, supported on SBA-15 (MnO x/SBA-15). The catalysts were characterized by X-ray diffraction, N2 adsorption-desorption, Raman spectroscopy, and H 2-temperature programmed reduction. The manganese nitrate (MN) precursor primarily resulted in large particles on the silica support, while the manganese acetate (MA) precursor mainly resulted in a highly dispersed manganese oxide on the silica support. The catalytic activity was dependent upon ozone concentration, reaction times, and the amount of Mn loading. Higher benzene conversion, O3 conversion, and COx yield were observed for MnOx-MA/SBA-15 catalyst over MnOx-MN/SBA-15, due to the highly dispersed manganese oxides on the supports, and the higher oxygen mobility. The 15 wt% MnOx-MA/SBA-15 catalyst shows the highest catalytic activity of all the catalysts considered in this study.",

keywords = "Benzene, Catalytic oxidation, Mn acetate, Mn nitrate, MnO/SBA-15, Ozone",

author = "Mingshi Jin and Kim, {Jung Hwan} and Kim, {Ji Man} and Jeon, {Jong Ki} and Jongsoo Jurng and Bae, {Gwi Nam} and Park, {Young Kwon}",

year = "2013",

month = apr,

day = "15",

doi = "10.1016/j.cattod.2012.09.026",

language = "English",

volume = "204",

pages = "108--113",

journal = "Catalysis Today",

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T1 - Benzene oxidation with ozone over MnOx/SBA-15 catalysts

AU - Jin, Mingshi

AU - Kim, Jung Hwan

AU - Kim, Ji Man

AU - Jeon, Jong Ki

AU - Jurng, Jongsoo

AU - Bae, Gwi Nam

AU - Park, Young Kwon

PY - 2013/4/15

Y1 - 2013/4/15

N2 - Catalytic oxidation of benzene with ozone has been studied using manganese oxides with two different manganese precursors, Mn(NO3)2 and Mn(CH3COO)2, supported on SBA-15 (MnO x/SBA-15). The catalysts were characterized by X-ray diffraction, N2 adsorption-desorption, Raman spectroscopy, and H 2-temperature programmed reduction. The manganese nitrate (MN) precursor primarily resulted in large particles on the silica support, while the manganese acetate (MA) precursor mainly resulted in a highly dispersed manganese oxide on the silica support. The catalytic activity was dependent upon ozone concentration, reaction times, and the amount of Mn loading. Higher benzene conversion, O3 conversion, and COx yield were observed for MnOx-MA/SBA-15 catalyst over MnOx-MN/SBA-15, due to the highly dispersed manganese oxides on the supports, and the higher oxygen mobility. The 15 wt% MnOx-MA/SBA-15 catalyst shows the highest catalytic activity of all the catalysts considered in this study.

AB - Catalytic oxidation of benzene with ozone has been studied using manganese oxides with two different manganese precursors, Mn(NO3)2 and Mn(CH3COO)2, supported on SBA-15 (MnO x/SBA-15). The catalysts were characterized by X-ray diffraction, N2 adsorption-desorption, Raman spectroscopy, and H 2-temperature programmed reduction. The manganese nitrate (MN) precursor primarily resulted in large particles on the silica support, while the manganese acetate (MA) precursor mainly resulted in a highly dispersed manganese oxide on the silica support. The catalytic activity was dependent upon ozone concentration, reaction times, and the amount of Mn loading. Higher benzene conversion, O3 conversion, and COx yield were observed for MnOx-MA/SBA-15 catalyst over MnOx-MN/SBA-15, due to the highly dispersed manganese oxides on the supports, and the higher oxygen mobility. The 15 wt% MnOx-MA/SBA-15 catalyst shows the highest catalytic activity of all the catalysts considered in this study.

KW - Benzene

KW - Catalytic oxidation

KW - Mn acetate

KW - Mn nitrate

KW - MnO/SBA-15

KW - Ozone

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U2 - 10.1016/j.cattod.2012.09.026

DO - 10.1016/j.cattod.2012.09.026

M3 - Article

AN - SCOPUS:84873720455

SN - 0920-5861

VL - 204

SP - 108

EP - 113

JO - Catalysis Today

JF - Catalysis Today

ER -

Benzene oxidation with ozone over MnO_x/SBA-15 catalysts

Abstract

Keywords

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