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dc.contributor.authorWang, Xilong
dc.contributor.authorAlabsi, Mohnnad H.
dc.contributor.authorZheng, Peng
dc.contributor.authorMei, Jinlin
dc.contributor.authorRamirez, Adrian
dc.contributor.authorDuan, Aijun
dc.contributor.authorXu, Chunming
dc.contributor.authorHuang, Kuo-Wei
dc.date.accessioned2021-12-01T08:17:42Z
dc.date.available2021-12-01T08:17:42Z
dc.date.issued2021-11
dc.date.submitted2021-10-26
dc.identifier.citationWang, X., Alabsi, M. H., Zheng, P., Mei, J., Ramirez, A., Duan, A., … Huang, K.-W. (2021). PdCu supported on dendritic mesoporous CexZr1-xO2 as superior catalysts to boost CO2 hydrogenation to methanol. Journal of Colloid and Interface Science. doi:10.1016/j.jcis.2021.11.172
dc.identifier.issn0021-9797
dc.identifier.doi10.1016/j.jcis.2021.11.172
dc.identifier.urihttp://hdl.handle.net/10754/673859
dc.description.abstractA dendritic PdCu/Ce0.3Zr0.7O2 (PdCu/CZ-3) catalyst with uniform spherical morphology was prepared for boosting the catalytic performance of CO2 hydrogenation to methanol (MeOH). The open dendritic pore channels and small particle sizes could reduce not only the diffuse resistance of reactants and products but also increase the accessibility between the active sites (PdCu and oxygen vacancy) and the reactants (H2 and CO2). More spillover hydrogen could be generated due to the highly dispersed PdCu active metals over the PdCu/CZ-3 catalyst. PdCu/CZ-3 can stimulate the generation of more Ce3+ cations, which is beneficial to produce more oxygen vacancies on the surface of the CZ-3 composite. Spillover hydrogen and oxygen vacancy could promote the formate and methoxy routes over PdCu/CZ-3, the primary intermediates producing MeOH. PdCu/CZ-3 displayed the highest CO2 conversions (25.5 %), highest MeOH yield (6.4 %), highest PdCu-TOFMeOH (7.7 h-1) and superior 100 h long-term stability than those of other PdCu/CexZr1-xO2 analogs and the reference PdCu/CeO2 and PdCu/ZrO2 catalysts. Density functional theory (DFT) calculations and in situ DRIFTS were performed to investigate the CO2−MeOH hydrogenation mechanism.
dc.description.sponsorshipThis work was financially supported by King Abdullah University of Science and Technology (KAUST).
dc.publisherElsevier BV
dc.relation.urlhttps://linkinghub.elsevier.com/retrieve/pii/S0021979721020889
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Journal of Colloid and Interface Science. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Colloid and Interface Science, [, , (2021-11)] DOI: 10.1016/j.jcis.2021.11.172 . © 2021. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titlePdCu supported on dendritic mesoporous CexZr1-xO2 as superior catalysts to boost CO2 hydrogenation to methanol
dc.typeArticle
dc.contributor.departmentChemical Science Program
dc.contributor.departmentHomogeneous Catalysis Laboratory (HCL)
dc.contributor.departmentKAUST Catalysis Center (KCC)
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalJournal of Colloid and Interface Science
dc.rights.embargodate2023-11
dc.eprint.versionPost-print
dc.contributor.institutionState Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing 102249, P.R. China.
kaust.personWang, Xilong
kaust.personAlabsi, Mohnnad H.
kaust.personRamirez, Adrian
kaust.personHuang, Kuo-Wei
dc.date.accepted2021-11-26
refterms.dateFOA2021-12-01T08:19:04Z


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