Prominent catalytic activity of mesoporous molecular sieves in the vapor phase dehydration of cyclohexanol to cyclohexene

Azhagapillai Prabhu; Ahmed Al Shoaibi; Chandrasekar Srinivasakannan; Muthaiahpillai Palanichamy; Velayutham Murugesan

doi:10.1016/S1002-0721(12)60306-8

Prominent catalytic activity of mesoporous molecular sieves in the vapor phase dehydration of cyclohexanol to cyclohexene

Azhagapillai Prabhu
, Ahmed Al Shoaibi
, Chandrasekar Srinivasakannan
, Muthaiahpillai Palanichamy
, Velayutham Murugesan

Chemical and Petroleum Engineering

Anna University

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

5 Scopus citations

Abstract

Cerium incorporated KIT-6 mesoporous materials were synthesized through direct hydrothermal method and characterized by using X-ray diffraction (XRD), nitrogen sorption isotherm (BET), Fourier transform infrared spectroscopy (FT-IR), inductively coupled plasma - atomic emission spectroscopy (ICP-AES), diffuse reflectance ultraviolet visible spectroscopy (DRS-UV-Vis), thermogravimetric analysis (TGA), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) methods. It appeared that stable cerium ions were inserted into the silica framework of KIT-6, thus generating acid properties in their host materials. The catalytic activity of Ce-KIT-6 materials was evaluated in the vapor phase dehydration of cyclohexanol to cyclohexene and dicyclohexyl ether at different temperatures with various Si/Ce molar ratios. Ce-KIT-6 (25) showed higher activity with 54% cyclohexanol conversion and 64% selectivity to cyclohexene. The catalytic results indicated that Ce-KIT-6 mesoporous materials could be used as versatile and stable acid catalysts.

Original language	British English
Pages (from-to)	477-484
Number of pages	8
Journal	Journal of Rare Earths
Volume	31
Issue number	5
DOIs	https://doi.org/10.1016/S1002-0721(12)60306-8
State	Published - May 2013

Keywords

Ce-KIT-6
cyclohexanol
cyclohexene
dehydration
dicyclohexyl ether
rare earths

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10.1016/S1002-0721(12)60306-8

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@article{580d7016dfa8448d9ff2955177462f08,

title = "Prominent catalytic activity of mesoporous molecular sieves in the vapor phase dehydration of cyclohexanol to cyclohexene",

abstract = "Cerium incorporated KIT-6 mesoporous materials were synthesized through direct hydrothermal method and characterized by using X-ray diffraction (XRD), nitrogen sorption isotherm (BET), Fourier transform infrared spectroscopy (FT-IR), inductively coupled plasma - atomic emission spectroscopy (ICP-AES), diffuse reflectance ultraviolet visible spectroscopy (DRS-UV-Vis), thermogravimetric analysis (TGA), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) methods. It appeared that stable cerium ions were inserted into the silica framework of KIT-6, thus generating acid properties in their host materials. The catalytic activity of Ce-KIT-6 materials was evaluated in the vapor phase dehydration of cyclohexanol to cyclohexene and dicyclohexyl ether at different temperatures with various Si/Ce molar ratios. Ce-KIT-6 (25) showed higher activity with 54\% cyclohexanol conversion and 64\% selectivity to cyclohexene. The catalytic results indicated that Ce-KIT-6 mesoporous materials could be used as versatile and stable acid catalysts.",

keywords = "Ce-KIT-6, cyclohexanol, cyclohexene, dehydration, dicyclohexyl ether, rare earths",

author = "Azhagapillai Prabhu and Shoaibi, \{Ahmed Al\} and Chandrasekar Srinivasakannan and Muthaiahpillai Palanichamy and Velayutham Murugesan",

year = "2013",

month = may,

doi = "10.1016/S1002-0721(12)60306-8",

language = "British English",

volume = "31",

pages = "477--484",

journal = "Journal of Rare Earths",

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TY - JOUR

T1 - Prominent catalytic activity of mesoporous molecular sieves in the vapor phase dehydration of cyclohexanol to cyclohexene

AU - Prabhu, Azhagapillai

AU - Shoaibi, Ahmed Al

AU - Srinivasakannan, Chandrasekar

AU - Palanichamy, Muthaiahpillai

AU - Murugesan, Velayutham

PY - 2013/5

Y1 - 2013/5

N2 - Cerium incorporated KIT-6 mesoporous materials were synthesized through direct hydrothermal method and characterized by using X-ray diffraction (XRD), nitrogen sorption isotherm (BET), Fourier transform infrared spectroscopy (FT-IR), inductively coupled plasma - atomic emission spectroscopy (ICP-AES), diffuse reflectance ultraviolet visible spectroscopy (DRS-UV-Vis), thermogravimetric analysis (TGA), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) methods. It appeared that stable cerium ions were inserted into the silica framework of KIT-6, thus generating acid properties in their host materials. The catalytic activity of Ce-KIT-6 materials was evaluated in the vapor phase dehydration of cyclohexanol to cyclohexene and dicyclohexyl ether at different temperatures with various Si/Ce molar ratios. Ce-KIT-6 (25) showed higher activity with 54% cyclohexanol conversion and 64% selectivity to cyclohexene. The catalytic results indicated that Ce-KIT-6 mesoporous materials could be used as versatile and stable acid catalysts.

AB - Cerium incorporated KIT-6 mesoporous materials were synthesized through direct hydrothermal method and characterized by using X-ray diffraction (XRD), nitrogen sorption isotherm (BET), Fourier transform infrared spectroscopy (FT-IR), inductively coupled plasma - atomic emission spectroscopy (ICP-AES), diffuse reflectance ultraviolet visible spectroscopy (DRS-UV-Vis), thermogravimetric analysis (TGA), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) methods. It appeared that stable cerium ions were inserted into the silica framework of KIT-6, thus generating acid properties in their host materials. The catalytic activity of Ce-KIT-6 materials was evaluated in the vapor phase dehydration of cyclohexanol to cyclohexene and dicyclohexyl ether at different temperatures with various Si/Ce molar ratios. Ce-KIT-6 (25) showed higher activity with 54% cyclohexanol conversion and 64% selectivity to cyclohexene. The catalytic results indicated that Ce-KIT-6 mesoporous materials could be used as versatile and stable acid catalysts.

KW - Ce-KIT-6

KW - cyclohexanol

KW - cyclohexene

KW - dehydration

KW - dicyclohexyl ether

KW - rare earths

UR - https://www.scopus.com/pages/publications/84879030532

U2 - 10.1016/S1002-0721(12)60306-8

DO - 10.1016/S1002-0721(12)60306-8

M3 - Article

AN - SCOPUS:84879030532

SN - 1002-0721

VL - 31

SP - 477

EP - 484

JO - Journal of Rare Earths

JF - Journal of Rare Earths

IS - 5

ER -

Prominent catalytic activity of mesoporous molecular sieves in the vapor phase dehydration of cyclohexanol to cyclohexene

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Keywords

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