Layered double hydroxides as base catalysts for the synthesis of dimethyl carbonate

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Title: Layered double hydroxides as base catalysts for the synthesis of dimethyl carbonate
Authors: Gandara-Loe, Jesús | Jacobo-Azuara, A. | Silvestre-Albero, Joaquín | Sepúlveda-Escribano, Antonio | Ramos-Fernández, Enrique V.
Research Group/s: Materiales Avanzados
Center, Department or Service: Universidad de Alicante. Departamento de Química Inorgánica | Universidad de Alicante. Instituto Universitario de Materiales
Keywords: LDH | Dimethyl carbonate | CO2 | Ethylene carbonate
Knowledge Area: Química Inorgánica
Issue Date: 1-Nov-2017
Publisher: Elsevier
Citation: Catalysis Today. 2017, 296: 254-261. doi:10.1016/j.cattod.2017.04.047
Abstract: In this work, we have prepared two series of layered double hydroxides (LDHs) based on three different divalent cations (Zn2+, Ni2+ and Mg2+), that were ion-exchanged by a trivalent cation (Al3+). The charge was balanced with interlayer anions, either silicate or carbonate. Thus, we have synthetized six different samples and we have studied their physicochemical properties by a wide range of techniques, in order to elucidate their properties. Finally, we have used the prepared materials as catalysts in the transesterification of ethylene carbonate with methanol to produce dimethyl carbonate and ethylene glycol. We have found that materials containing Ni as divalent cation present better catalytic activity due to their basic properties, whereas catalysts containing silicate as interlayer anion yield better selectivity, since they have a lower amount of acid sites.
Sponsor: The authors acknowledge financial support from the MINECO projects MAT-2013-45008-P, MAT2016-81732-ERC. EVRF gratefully acknowledge support from MINECO for his Ramón y Cajal grant (RyC-2012-11427) and University of Alicante for the project GRE-13-31. Generalitat Valenciana is acknowledges for support (PROMETEOII/2014/004). JGL Fellowship for National Master Studies 2014 of the National Council of Science and Technology (CONACYT), Mexico.
ISSN: 0920-5861 (Print) | 1873-4308 (Online)
DOI: 10.1016/j.cattod.2017.04.047
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2017 Elsevier B.V.
Peer Review: si
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Appears in Collections:INV - LMA - Artículos de Revistas

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