Premium
Dehydration of 1,5‐Pentanediol over Na‐Doped CeO 2 Catalysts
Author(s) -
Gnanamani Muthu Kumaran,
Jacobs Gary,
Martinelli Michela,
Shafer Wilson D.,
Hopps Shelley D.,
Thomas Gerald A.,
Davis Burtron H.
Publication year - 2018
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201701420
Subject(s) - catalysis , chemistry , selectivity , dehydration , tetrahydropyran , desorption , fourier transform infrared spectroscopy , inorganic chemistry , thermal desorption spectroscopy , infrared spectroscopy , diffuse reflectance infrared fourier transform , hydrogen , nuclear chemistry , adsorption , organic chemistry , chemical engineering , ring (chemistry) , biochemistry , photocatalysis , engineering
The effects of CeO 2 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, CO 2 temperature‐programmed desorption, and diffuse reflectance infrared Fourier transform spectroscopy techniques were utilized. The conversion of the diol on CeO 2 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 CeO 2 . The basicity of hydroxyl groups or surface oxygen on CeO 2 was altered with the addition of Na, and controlled the dehydration reaction pathway.