Dehydration of 1,5-Pentanediol over Na-Doped CeO2 Catalysts

Muthu Kumaran Gnanamani; Gary Jacobs; Michela Martinelli; Wilson D. Shafer; Shelley D. Hopps; Gerald A. Thomas; Burtron H. Davis

doi:10.1002/cctc.201701420

Dehydration of 1,5-Pentanediol over Na-Doped CeO₂ Catalysts

Muthu Kumaran Gnanamani, Gary Jacobs, Michela Martinelli, Wilson D. Shafer, Shelley D. Hopps, Gerald A. Thomas, Burtron H. Davis

Center for Applied Energy Research (CAER)

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

9 Scopus citations

Abstract

The effects of CeO₂ doped with Na on the dehydration of 1,5-pentanediol were studied by using a fixed-bed reactor at two different temperatures (350 and 400 °C) and atmospheric pressure. For characterization, BET surface area, hydrogen temperature-programmed reduction, CO₂ temperature-programmed desorption, and diffuse reflectance infrared Fourier transform spectroscopy techniques were utilized. The conversion of the diol on CeO₂ was found to depend on Na loading. The selectivity to the desired product (i.e., unsaturated alcohol) increased and the selectivity to undesired products (i.e., tetrahydropyran, tetrahydropyran-2-one, cyclopentanol and cylopentanone) decreased with increasing Na content on CeO₂. The basicity of hydroxyl groups or surface oxygen on CeO₂ was altered with the addition of Na, and controlled the dehydration reaction pathway.

Original language	English
Pages (from-to)	1148-1154
Number of pages	7
Journal	ChemCatChem
Volume	10
Issue number	5
DOIs	https://doi.org/10.1002/cctc.201701420
State	Published - Mar 7 2018

Bibliographical note

Publisher Copyright:
© 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim

Keywords

alcohols
basicity
cerium
doping
olefination

ASJC Scopus subject areas

Catalysis
Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry

Access to Document

10.1002/cctc.201701420

Cite this

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title = "Dehydration of 1,5-Pentanediol over Na-Doped CeO2 Catalysts",

abstract = "The effects of CeO2 doped with Na on the dehydration of 1,5-pentanediol were studied by using a fixed-bed reactor at two different temperatures (350 and 400 °C) and atmospheric pressure. For characterization, BET surface area, hydrogen temperature-programmed reduction, CO2 temperature-programmed desorption, and diffuse reflectance infrared Fourier transform spectroscopy techniques were utilized. The conversion of the diol on CeO2 was found to depend on Na loading. The selectivity to the desired product (i.e., unsaturated alcohol) increased and the selectivity to undesired products (i.e., tetrahydropyran, tetrahydropyran-2-one, cyclopentanol and cylopentanone) decreased with increasing Na content on CeO2. The basicity of hydroxyl groups or surface oxygen on CeO2 was altered with the addition of Na, and controlled the dehydration reaction pathway.",

keywords = "alcohols, basicity, cerium, doping, olefination",

author = "Gnanamani, {Muthu Kumaran} and Gary Jacobs and Michela Martinelli and Shafer, {Wilson D.} and Hopps, {Shelley D.} and Thomas, {Gerald A.} and Davis, {Burtron H.}",

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T1 - Dehydration of 1,5-Pentanediol over Na-Doped CeO2 Catalysts

AU - Gnanamani, Muthu Kumaran

AU - Jacobs, Gary

AU - Martinelli, Michela

AU - Shafer, Wilson D.

AU - Hopps, Shelley D.

AU - Thomas, Gerald A.

AU - Davis, Burtron H.

PY - 2018/3/7

Y1 - 2018/3/7

N2 - The effects of CeO2 doped with Na on the dehydration of 1,5-pentanediol were studied by using a fixed-bed reactor at two different temperatures (350 and 400 °C) and atmospheric pressure. For characterization, BET surface area, hydrogen temperature-programmed reduction, CO2 temperature-programmed desorption, and diffuse reflectance infrared Fourier transform spectroscopy techniques were utilized. The conversion of the diol on CeO2 was found to depend on Na loading. The selectivity to the desired product (i.e., unsaturated alcohol) increased and the selectivity to undesired products (i.e., tetrahydropyran, tetrahydropyran-2-one, cyclopentanol and cylopentanone) decreased with increasing Na content on CeO2. The basicity of hydroxyl groups or surface oxygen on CeO2 was altered with the addition of Na, and controlled the dehydration reaction pathway.

AB - The effects of CeO2 doped with Na on the dehydration of 1,5-pentanediol were studied by using a fixed-bed reactor at two different temperatures (350 and 400 °C) and atmospheric pressure. For characterization, BET surface area, hydrogen temperature-programmed reduction, CO2 temperature-programmed desorption, and diffuse reflectance infrared Fourier transform spectroscopy techniques were utilized. The conversion of the diol on CeO2 was found to depend on Na loading. The selectivity to the desired product (i.e., unsaturated alcohol) increased and the selectivity to undesired products (i.e., tetrahydropyran, tetrahydropyran-2-one, cyclopentanol and cylopentanone) decreased with increasing Na content on CeO2. The basicity of hydroxyl groups or surface oxygen on CeO2 was altered with the addition of Na, and controlled the dehydration reaction pathway.

KW - alcohols

KW - basicity

KW - cerium

KW - doping

KW - olefination

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