Impact of the morphological and chemical properties of copper-zirconium-SBA-15 catalysts on the conversion and selectivity in carbon dioxide hydrogenationShow others and affiliations
2019 (English)In: Journal of Colloid and Interface Science, ISSN 0021-9797, E-ISSN 1095-7103, Vol. 546, p. 163-173Article in journal (Refereed) Published
Abstract [en]
A hybrid catalyst consisting of Zr-doped mesoporous silica (Zr-SBA-15) supports with intergrown Cu nanoparticles was used to study the effects of a catalysts chemical states on CO2 hydrogenation. The chemical state of the catalyst was altered by using tetraethyl orthosilicate (TEOS) or sodium metasilicate (SMS) as the silica precursor in the synthesis of the Zr-SBA-15 framework, and infiltration (Inf) or evaporation induced wetness impregnation (EIWI) as the Cu loading method. As a result, the silica precursor mainly affects the activity of the catalyst whereas the Cu loading method alters the selectivity of the products. TEOS materials exhibit a higher catalytic activity compared to SMS materials due to different Zr dispersion and bonding to the silica matrix. EIWI catalysts display selectivity for methanol formation, while the Inf ones enable methanol conversion to DME. This is correlated to a higher Zr content and lower Cu oxidation states of EIWI prepared catalysts. (C) 2019 Elsevier Inc. All rights reserved.
Place, publisher, year, edition, pages
ACADEMIC PRESS INC ELSEVIER SCIENCE , 2019. Vol. 546, p. 163-173
Keywords [en]
Zr doped SBA-15; Cu nanoparticles; CO2 hydrogenation; Methanol; Dimethyl ether
National Category
Chemical Engineering
Identifiers
URN: urn:nbn:se:liu:diva-158046DOI: 10.1016/j.jcis.2019.03.046ISI: 000466054200017PubMedID: 30913490OAI: oai:DiVA.org:liu-158046DiVA, id: diva2:1330175
Note
Funding Agencies|EUs Erasmus-Mundus program (European School of Materials - Doctoral Programme - DocMASE); Swedish Energy Agency [P42022-1]; Swedish Government Strategic Research Area in Materials Science on Functional Materials at Linkoping University (Faculty Grant SFO-Mat-LiU grant) [2009-00971]; Swedish Research Council [2015-00624]; Vinnova [2016-05156]; Knut and Alice Wallenberg Foundation [2012.0083]
2019-06-252019-06-252025-02-18