Selective oxidation of p-chlorotoluene to p-chlorobenzaldehyde with molecular oxygen over zirconium-doped manganese oxide materials

Teng Zhang; Yi Qiang Deng; Wei Fang Zhou; Chak Tong Au; Shuang Feng Yin

doi:10.1016/j.cej.2013.10.094

Selective oxidation of p-chlorotoluene to p-chlorobenzaldehyde with molecular oxygen over zirconium-doped manganese oxide materials

Teng Zhang, Yi Qiang Deng, Wei Fang Zhou, Chak Tong Au, Shuang Feng Yin^*

^*Corresponding author for this work

Department of Chemistry

Research output: Contribution to journal › Journal article › peer-review

31 Citations (Scopus)

Abstract

Nano-fibrous zirconium-doped manganese oxide octahedral molecular sieves (denoted as Zr-OMS-2) were prepared and characterized by XRD, SEM, EDXS, FTIR, NH₃-TPD, and N₂ adsorption-desorption techniques. The materials were used as catalysts for liquid-phase aerobic oxidation of p-chlorotoluene to p-chlorobenzaldehyde. The Zr-OMS-2 catalysts show much higher catalytic activities than OMS-2, and the Zr-OMS-2 with 6wt% Zr content shows the highest activity, giving approximately 93% p-chlorotoluene conversion and 86% p-chlorobenzaldehyde selectivity in 10h at 100°C. The promotion effect of Zr is deduced to be related with the suitable acidity and the enhancement of specific surface area. In addition, effects of reaction parameters such as catalyst amount, oxygen flow, temperature and time were studied.

Original language	English
Pages (from-to)	509-515
Number of pages	7
Journal	Chemical Engineering Journal
Volume	240
DOIs	https://doi.org/10.1016/j.cej.2013.10.094
Publication status	Published - 15 Mar 2014

User-Defined Keywords

OMS-2
Oxygen
P-Chlorobenzaldehyde
P-Chlorotoluene
Zr-OMS-2

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10.1016/j.cej.2013.10.094

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@article{a37510bb2420400b8a9acbac4a11c36e,

title = "Selective oxidation of p-chlorotoluene to p-chlorobenzaldehyde with molecular oxygen over zirconium-doped manganese oxide materials",

abstract = "Nano-fibrous zirconium-doped manganese oxide octahedral molecular sieves (denoted as Zr-OMS-2) were prepared and characterized by XRD, SEM, EDXS, FTIR, NH3-TPD, and N2 adsorption-desorption techniques. The materials were used as catalysts for liquid-phase aerobic oxidation of p-chlorotoluene to p-chlorobenzaldehyde. The Zr-OMS-2 catalysts show much higher catalytic activities than OMS-2, and the Zr-OMS-2 with 6wt% Zr content shows the highest activity, giving approximately 93% p-chlorotoluene conversion and 86% p-chlorobenzaldehyde selectivity in 10h at 100°C. The promotion effect of Zr is deduced to be related with the suitable acidity and the enhancement of specific surface area. In addition, effects of reaction parameters such as catalyst amount, oxygen flow, temperature and time were studied.",

keywords = "OMS-2, Oxygen, P-Chlorobenzaldehyde, P-Chlorotoluene, Zr-OMS-2",

author = "Teng Zhang and Deng, {Yi Qiang} and Zhou, {Wei Fang} and Au, {Chak Tong} and Yin, {Shuang Feng}",

note = "Funding Information: This project was financially supported by the NSFC (U1162109, 21273067, J1210040) as well as by the program for New Century Excellent Talents in Universities (NCET-10-0371), Program for Changjiang Scholars and Innovative Research Team in University (IRT1238), and Fundamental Research Funds for the Central Universities. C.T. Au thanks the Hunan University for an adjunct professorship.",

year = "2014",

month = mar,

day = "15",

doi = "10.1016/j.cej.2013.10.094",

language = "English",

volume = "240",

pages = "509--515",

journal = "Chemical Engineering Journal",

issn = "1385-8947",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Selective oxidation of p-chlorotoluene to p-chlorobenzaldehyde with molecular oxygen over zirconium-doped manganese oxide materials

AU - Zhang, Teng

AU - Deng, Yi Qiang

AU - Zhou, Wei Fang

AU - Au, Chak Tong

AU - Yin, Shuang Feng

N1 - Funding Information: This project was financially supported by the NSFC (U1162109, 21273067, J1210040) as well as by the program for New Century Excellent Talents in Universities (NCET-10-0371), Program for Changjiang Scholars and Innovative Research Team in University (IRT1238), and Fundamental Research Funds for the Central Universities. C.T. Au thanks the Hunan University for an adjunct professorship.

PY - 2014/3/15

Y1 - 2014/3/15

N2 - Nano-fibrous zirconium-doped manganese oxide octahedral molecular sieves (denoted as Zr-OMS-2) were prepared and characterized by XRD, SEM, EDXS, FTIR, NH3-TPD, and N2 adsorption-desorption techniques. The materials were used as catalysts for liquid-phase aerobic oxidation of p-chlorotoluene to p-chlorobenzaldehyde. The Zr-OMS-2 catalysts show much higher catalytic activities than OMS-2, and the Zr-OMS-2 with 6wt% Zr content shows the highest activity, giving approximately 93% p-chlorotoluene conversion and 86% p-chlorobenzaldehyde selectivity in 10h at 100°C. The promotion effect of Zr is deduced to be related with the suitable acidity and the enhancement of specific surface area. In addition, effects of reaction parameters such as catalyst amount, oxygen flow, temperature and time were studied.

AB - Nano-fibrous zirconium-doped manganese oxide octahedral molecular sieves (denoted as Zr-OMS-2) were prepared and characterized by XRD, SEM, EDXS, FTIR, NH3-TPD, and N2 adsorption-desorption techniques. The materials were used as catalysts for liquid-phase aerobic oxidation of p-chlorotoluene to p-chlorobenzaldehyde. The Zr-OMS-2 catalysts show much higher catalytic activities than OMS-2, and the Zr-OMS-2 with 6wt% Zr content shows the highest activity, giving approximately 93% p-chlorotoluene conversion and 86% p-chlorobenzaldehyde selectivity in 10h at 100°C. The promotion effect of Zr is deduced to be related with the suitable acidity and the enhancement of specific surface area. In addition, effects of reaction parameters such as catalyst amount, oxygen flow, temperature and time were studied.

KW - OMS-2

KW - Oxygen

KW - P-Chlorobenzaldehyde

KW - P-Chlorotoluene

KW - Zr-OMS-2

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U2 - 10.1016/j.cej.2013.10.094

DO - 10.1016/j.cej.2013.10.094

M3 - Journal article

AN - SCOPUS:84893651376

SN - 1385-8947

VL - 240

SP - 509

EP - 515

JO - Chemical Engineering Journal

JF - Chemical Engineering Journal

ER -

Selective oxidation of p-chlorotoluene to p-chlorobenzaldehyde with molecular oxygen over zirconium-doped manganese oxide materials

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