Exploring barium-titanium-peroxo-hydroxide as an excellent single-source precursor for crystallographically diverse barium titanate ceramics - parametric study

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dc.authorid0000-0002-3589-2059
dc.contributor.authorOzen, Murat
dc.contributor.authorMertens, Myrjam
dc.contributor.authorCool, Pegie
dc.date.accessioned2026-02-08T15:15:09Z
dc.date.available2026-02-08T15:15:09Z
dc.date.issued2024
dc.departmentBursa Teknik Üniversitesi
dc.description.abstractBarium-titanium-peroxo type amorphous materials gained importance with the advent of wet-chemical methods for the production of crystalline perovskite barium titanate (BaTiO3) electroceramics. In this paper, the chemical nature of the barium-titanium-peroxo precursor was determined by means of elemental (EPMA), spectroscopic (FT-IR and FT-Raman), XRD and thermal (DSC and TGA/DTA) analyses. Several synthesis parameters such as the barium source, the peroxide treatment time, the reaction temperature and the reaction time were investigated. The precursor was also thermally treated at varying temperatures between 30 degrees C and 1000 degrees C. Relatively high reaction temperatures are detrimental to the Ba center dot O center dot Ti structure, resulting in plain TiO2 formation. Though relatively low temperatures (ice bath) are needed to suppress unwanted TiOCl2, ambient synthesis conditions and short reaction time (2 h) resulted in the desired single-source properties, i.e. amorphous Ba center dot O center dot Ti-peroxo structure with Ba/Ti ratio of unity (1.04 +/- 0.04). The addition of an extra stirring step during H2O2 addition lowered the chance of carbonate incorporation in the precursor. Thermal analysis under air and nitrogen atmosphere was performed and a stoichiometric formula of Ba2,08Ti2O(O2)1,9(OH)5,3 center dot 3,1H2O was calculated, which was in very good agreement with literature data. The barium-titanium-peroxo-hydroxide material proved to be an excellent single-source precursor. Phase-pure, highly crystalline and facetted, stoichiometric BaTiO3 particles with differently crystallographically oriented facets were obtained via the molten-salt solid-state method ({100} or {111} oriented facets) as well as the hydrothermal route ({100} oriented facets).
dc.description.sponsorshipBursa Technical University BAP fund [181N07]
dc.description.sponsorshipThis work has been performed within a project supported by the Bursa Technical University BAP fund with project number 181N07. Bursa Technical University's MERLAB (Central Research Laboratory) is greatly acknowledged for its technical support. Karen Leyssens from the Department of Chemistry, LADCA from the University of Antwerp is acknowledged for the FT-Raman, FT-IR, and TGA/DTA measurements. VITO nv is greatly acknowledged for the powder XRD measurements. Rik Nullens from MiTAC at the University of Antwerp, Department of Chemistry is acknowledged for the EPMA measurements.
dc.identifier.doi10.1016/j.ceramint.2024.10.171
dc.identifier.endpage53221
dc.identifier.issn0272-8842
dc.identifier.issn1873-3956
dc.identifier.issue24
dc.identifier.scopus2-s2.0-85206614798
dc.identifier.scopusqualityQ1
dc.identifier.startpage53209
dc.identifier.urihttps://doi.org/10.1016/j.ceramint.2024.10.171
dc.identifier.urihttps://hdl.handle.net/20.500.12885/5638
dc.identifier.volume50
dc.identifier.wosWOS:001407055800001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Sci Ltd
dc.relation.ispartofCeramics International
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzWOS_KA_20260207
dc.subjectPeroxo-hydroxide
dc.subjectBarium titanate
dc.subjectSingle-source precursor
dc.subjectPerovskite
dc.subjectParametric study
dc.titleExploring barium-titanium-peroxo-hydroxide as an excellent single-source precursor for crystallographically diverse barium titanate ceramics - parametric study
dc.typeArticle

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