The hydroxylation of benzene to phenol over heteropolyacid encapsulated in silica

Yan Li; Zhi Wang; Rizhi Chen; Yong Wang; Weihong Xing; Jun Wang; Jun Huang

doi:10.1016/j.catcom.2014.06.014

The hydroxylation of benzene to phenol over heteropolyacid encapsulated in silica

Yan Li, Zhi Wang, Rizhi Chen, Yong Wang, Weihong Xing, Jun Wang, Jun Huang

College of Chemical Engineering

Nanjing Tech University

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

25 Scopus citations

Abstract

The vanadium-substituted heteropoly acid (H₅PMo ₁₀V₂O₄₀ nH₂O) (PMoV₂) was encapsulated in silica as an immobilized catalyst (PMoV₂@SiO ₂) for the hydroxylation of benzene to phenol with H ₂O₂. The PMoV₂@SiO₂ was prepared by the one-pot hydrolysis of tetraethyl orthosilicate (TEOS) with PMoV₂ and Pluronic P123, and then the P123 was removed by pyrolysis at 500 °C to give PMoV₂@SiO₂. The PMoV₂@SiO₂ was found to be highly porous with micropores, mesopores and macropores, and the PMoV₂@SiO₂ was highly active and selective for the hydroxylation of benzene under mild conditions. Moreover, the catalyst can be reused at least 5 times without obvious deactivation.

Original language	English
Pages (from-to)	34-37
Number of pages	4
Journal	Catalysis Communications
Volume	55
DOIs	https://doi.org/10.1016/j.catcom.2014.06.014
State	Published - 5 Oct 2014

Keywords

Heterogeneous
Heteropolyacid
Hydroxylation
Phenol
Vanadium

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title = "The hydroxylation of benzene to phenol over heteropolyacid encapsulated in silica",

abstract = "The vanadium-substituted heteropoly acid (H5PMo 10V2O40 nH2O) (PMoV2) was encapsulated in silica as an immobilized catalyst (PMoV2@SiO 2) for the hydroxylation of benzene to phenol with H 2O2. The PMoV2@SiO2 was prepared by the one-pot hydrolysis of tetraethyl orthosilicate (TEOS) with PMoV2 and Pluronic P123, and then the P123 was removed by pyrolysis at 500 °C to give PMoV2@SiO2. The PMoV2@SiO2 was found to be highly porous with micropores, mesopores and macropores, and the PMoV2@SiO2 was highly active and selective for the hydroxylation of benzene under mild conditions. Moreover, the catalyst can be reused at least 5 times without obvious deactivation.",

keywords = "Heterogeneous, Heteropolyacid, Hydroxylation, Phenol, Vanadium",

author = "Yan Li and Zhi Wang and Rizhi Chen and Yong Wang and Weihong Xing and Jun Wang and Jun Huang",

year = "2014",

month = oct,

day = "5",

doi = "10.1016/j.catcom.2014.06.014",

language = "英语",

volume = "55",

pages = "34--37",

journal = "Catalysis Communications",

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T1 - The hydroxylation of benzene to phenol over heteropolyacid encapsulated in silica

AU - Li, Yan

AU - Wang, Zhi

AU - Chen, Rizhi

AU - Wang, Yong

AU - Xing, Weihong

AU - Wang, Jun

AU - Huang, Jun

PY - 2014/10/5

Y1 - 2014/10/5

N2 - The vanadium-substituted heteropoly acid (H5PMo 10V2O40 nH2O) (PMoV2) was encapsulated in silica as an immobilized catalyst (PMoV2@SiO 2) for the hydroxylation of benzene to phenol with H 2O2. The PMoV2@SiO2 was prepared by the one-pot hydrolysis of tetraethyl orthosilicate (TEOS) with PMoV2 and Pluronic P123, and then the P123 was removed by pyrolysis at 500 °C to give PMoV2@SiO2. The PMoV2@SiO2 was found to be highly porous with micropores, mesopores and macropores, and the PMoV2@SiO2 was highly active and selective for the hydroxylation of benzene under mild conditions. Moreover, the catalyst can be reused at least 5 times without obvious deactivation.

AB - The vanadium-substituted heteropoly acid (H5PMo 10V2O40 nH2O) (PMoV2) was encapsulated in silica as an immobilized catalyst (PMoV2@SiO 2) for the hydroxylation of benzene to phenol with H 2O2. The PMoV2@SiO2 was prepared by the one-pot hydrolysis of tetraethyl orthosilicate (TEOS) with PMoV2 and Pluronic P123, and then the P123 was removed by pyrolysis at 500 °C to give PMoV2@SiO2. The PMoV2@SiO2 was found to be highly porous with micropores, mesopores and macropores, and the PMoV2@SiO2 was highly active and selective for the hydroxylation of benzene under mild conditions. Moreover, the catalyst can be reused at least 5 times without obvious deactivation.

KW - Heterogeneous

KW - Heteropolyacid

KW - Hydroxylation

KW - Phenol

KW - Vanadium

UR - http://www.scopus.com/inward/record.url?scp=84903955147&partnerID=8YFLogxK

U2 - 10.1016/j.catcom.2014.06.014

DO - 10.1016/j.catcom.2014.06.014

M3 - 文章

AN - SCOPUS:84903955147

SN - 1566-7367

VL - 55

SP - 34

EP - 37

JO - Catalysis Communications

JF - Catalysis Communications

ER -

The hydroxylation of benzene to phenol over heteropolyacid encapsulated in silica

Abstract

Keywords

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