Ionic Liquid-Assisted Sonochemical Preparation of CeO2 Nanoparticles for CO Oxidation Alammar, Tarek Noei, Heshmat Mudring, Anja Wang, Yuemin Grunert, Wolfgang Mudring, Anja
dc.contributor.department Materials Science and Engineering 2018-02-17T02:09:32.000 2020-06-30T06:07:21Z 2020-06-30T06:07:21Z Wed Jan 01 00:00:00 UTC 2014 2014-01-01
dc.description.abstract <p>CeO<sub>2</sub> nanoparticles were synthesized via a one-step ultrasound synthesis in different kinds of ionic liquids based on bis(trifluoromethanesulfonylamide, [Tf<sub>2</sub>N]<sup>−</sup>, in combination with various cations including 1-butyl-3-methylimidazolium ([C<sub>4</sub>mim]<sup>+</sup>), 1-ethyl-2,3-dimethylimidazolium ([Edimim]<sup>+</sup>), butyl-pyridinium([Py<sub>4</sub>]<sup>+</sup>), 1-butyl-1-methyl-pyrrolidinium ([Pyrr<sub>14</sub>]<sup>+</sup>), and 2-hydroxyethyl-trimethylammonium ([N<sub>1112</sub>OH]<sup>+</sup>). Depending on synthetic parameters, such as ionic liquid, Ce(IV) precursor, heating method, and precipitator, formed ceria exhibits different morphologies, varying from nanospheres, nanorods, nanoribbons, and nanoflowers. The morphology, crystallinity, and chemical composition of the obtained materials were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), energy dispersive X-ray spectroscopy (EDX), Raman spectroscopy, and N<sub>2</sub> adsorption. The structural and electronic properties of the as-prepared CeO<sub>2</sub> samples were probed by CO adsorption using IR spectroscopy under ultrahigh vacuum conditions. The catalytic activities of CeO<sub>2</sub> nanoparticles were investigated in the oxidation of CO. CeO<sub>2</sub> nanospheres obtained sonochemically in [C<sub>4</sub>mim][Tf<sub>2</sub>N] exhibit the best performance for low-temperature CO oxidation. The superior catalytic performance of this material can be related to its mesoporous structure, small particle size, large surface area, and high number of surface oxygen vacancy sites.</p>
dc.description.comments <p>Reprinted with permission from ACS Sustainable Chem. Eng., 2015, 3 (1), pp 42–54. Copyright 2015 American Chemical Society.</p>
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dc.identifier archive/
dc.identifier.articleid 1203
dc.identifier.contextkey 7669960
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath mse_pubs/207
dc.language.iso en
dc.source.bitstream archive/|||Fri Jan 14 22:27:11 UTC 2022
dc.source.bitstream archive/|||Fri Jan 14 22:27:13 UTC 2022
dc.source.uri 10.1021/sc500387k
dc.subject.disciplines Ceramic Materials
dc.subject.disciplines Complex Fluids
dc.subject.disciplines Nanoscience and Nanotechnology
dc.subject.disciplines Other Materials Science and Engineering
dc.subject.keywords catalysis
dc.subject.keywords ceria
dc.subject.keywords CO oxidation
dc.subject.keywords ionic liquids
dc.subject.keywords nanomaterials
dc.subject.keywords critcial materials institute
dc.subject.keywords Amer Laboratory
dc.supplemental.bitstream 2014_Mudring_ionicLiquids_License.pdf
dc.title Ionic Liquid-Assisted Sonochemical Preparation of CeO2 Nanoparticles for CO Oxidation
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 76d3f5af-f728-48c2-ab57-57393236675d
relation.isOrgUnitOfPublication bf9f7e3e-25bd-44d3-b49c-ed98372dee5e
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