University of Oulu

Ewelina Leino, Narendra Kumar, Päivi Mäki-Arvela, Anne-Riikka Rautio, Johnny Dahl, Jorma Roine, Jyri-Pekka Mikkola, Synthesis and characterization of ceria-supported catalysts for carbon dioxide transformation to diethyl carbonate, Catalysis Today, Volume 306, 2018, Pages 128-137, ISSN 0920-5861, https://doi.org/10.1016/j.cattod.2017.01.016

Synthesis and characterization of ceria-supported catalysts for carbon dioxide transformation to diethyl carbonate

Saved in:
Author: Leino, Ewelina1; Kumar, Narendra1; Mäki-Arvela, Päivi1;
Organizations: 1Laboratory of Industrial Chemistry and Reaction Engineering, Process Chemistry Centre, Åbo Akademi University, Biskopsgatan 8, 20500, Turku/Åbo, Finland
2Laboratory of Microelectronics and Materials Physics, University of Oulu, PL 4500, 90014, Oulu, Finland
3Department of Physics and Astronomy, University of Turku, FI-20014, Åbo-Turku, Finland
4Technical Chemistry, Department of Chemistry, Chemical-Biological Centre, Umeå University, SE-90187, Umeå, Sweden
Format: article
Version: accepted version
Access: embargoed
Persistent link: http://urn.fi/urn:nbn:fi-fe2019052116396
Language: English
Published: Elsevier, 2018
Publish Date: 2020-05-15
Description:

Abstract

The support materials Al₂O₃, SiO₂ and TiO₂ were modified with 16 wt% CeO₂, using two different preparation methods evaporation-impregnation and precipitation-deposition. The synthesized 16 wt% CeO₂-Al₂O₃, 16 wt% CeO₂-SiO₂ and 16 wt% CeO₂-TiO₂ materials were characterized by means of X-ray powder diffraction for the phase purity, scanning electron microscopy for the morphology, nitrogen physisorption to determine the specific surface area and X-ray photo electron spectroscopy for the oxidation state of the Ce in the TiO₂, Al₂O₃ and SiO₂ matrices. Transmission electron microscopy was used to study the particle size of CeO₂ whereas CO₂-temperature programmed desorption (TPD) was used to determine the basicity of ceria-modified TiO₂, Al₂O₃ and SiO₂ catalysts. Furthermore, the catalytic performance of the as prepared CeO₂-modified catalysts were compared in the synthesis of diethyl carbonate starting from ethanol and CO₂ using butylene oxide as the dehydrating agent. The physico-chemical characterization results were correlated with the catalytic activity results and discussed in detail.

see all

Series: Catalysis today
ISSN: 0920-5861
ISSN-E: 1873-4308
ISSN-L: 0920-5861
Volume: 306
Pages: 128 - 137
DOI: 10.1016/j.cattod.2017.01.016
OADOI: https://oadoi.org/10.1016/j.cattod.2017.01.016
Type of Publication: A1 Journal article – refereed
Field of Science: 116 Chemical sciences
215 Chemical engineering
Subjects:
Funding: Dr. Ewelina Leino thanks the Åbo Akademi University Rectors' scholarship. Academy of Finland is acnkowledged for funding the inital stages of the research. In Sweden, also the Kempe Foundations, Wallenberg Wood Science Center and Bio4Energy programme are acnkowledged. Further, the Swedish Research Council (Vetenskapsrådet) is acknowledged.
Copyright information: © 2017 Elsevier B.V. All rights reserved. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/.
  https://creativecommons.org/licenses/by-nc-nd/4.0/