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High Surface Area Ceria Nanoparticles via Hydrothermal Synthesis Experiment Design
Joint Authors
Kurajica, Stanislav
Minga, Iva
Guliš, Martina
Mandić, Vilko
Simčić, Ivan
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-08-16
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Hydrothermal synthesis of CeO2 was optimized on two reactant concentrations and synthesis temperature and duration, in order to achieve material having the greatest specific surface area (SSA).
Taguchi method of experimental design was employed in evaluation of the relative importance of synthesis parameters.
CeO2 nanoparticles were characterized using X-ray diffraction, nitrogen adsorption-desorption isotherms, and scanning electron microscopy.
Optimum conditions for obtaining particles with greater SSA were calculated according to Taguchi’s model “the-higher-the-better.” Synthesis temperature was found to be the only parameter significant for enabling nanoparticles with greater SSA.
Mesoporous nanocrystalline ceria with SSA as great as 226 m2 g−1 was achieved, which is unprecedented for the hydrothermally synthesized ceria.
The reason for this achievement was found in temperature dependence of the diffusion coefficient which, when low, favors nucleation yielding with fine particles, while when high it favors crystal growth and formation of one-dimensional structures.
The occurrence of 1D-structure in sample exhibiting the smallest SSA was confirmed.
Very fine crystallites with crystallite size as low as 5.9 nm have been obtained being roughly inverse proportional to SSA.
Selected samples were tested as catalyst for soot oxidation.
Catalyst morphology turned out to be decisive factor for catalytic activity.
American Psychological Association (APA)
Kurajica, Stanislav& Minga, Iva& Guliš, Martina& Mandić, Vilko& Simčić, Ivan. 2016. High Surface Area Ceria Nanoparticles via Hydrothermal Synthesis Experiment Design. Journal of Nanomaterials،Vol. 2016, no. 2016, pp.1-8.
https://search.emarefa.net/detail/BIM-1109350
Modern Language Association (MLA)
Kurajica, Stanislav…[et al.]. High Surface Area Ceria Nanoparticles via Hydrothermal Synthesis Experiment Design. Journal of Nanomaterials No. 2016 (2016), pp.1-8.
https://search.emarefa.net/detail/BIM-1109350
American Medical Association (AMA)
Kurajica, Stanislav& Minga, Iva& Guliš, Martina& Mandić, Vilko& Simčić, Ivan. High Surface Area Ceria Nanoparticles via Hydrothermal Synthesis Experiment Design. Journal of Nanomaterials. 2016. Vol. 2016, no. 2016, pp.1-8.
https://search.emarefa.net/detail/BIM-1109350
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1109350