Study on thermolysis process of a new hydrated and protonated perovskite-like oxides H2K0.5Bi2.5Ti4O13·yH2O

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2 Citations (Scopus)

Abstract

A protonated form of the n = 4 layered bismuth containing perovskite-like titanate K2.5Bi2.5Ti4O13 belonging to Ruddlesden-Popper phases was prepared via ion exchange reaction of interlayer K+ with protons. Its composition was investigated by TG ICP and EDX analysis was found to be H2K0.5Bi2.5Ti4O13·H2O. The thermal behavior of the obtained phase was investigated by STA coupled with mass-spectrometry, the structural changes, happening with the sample during heating, were examined by XRD. It was shown that the as-prepared hydrated phase undergoes two-stage dehydration at low temperatures (up to 160 °C). The further heating leads to the gradual decomposition and crystallization of new phases, notably Bi2Ti2O7, Bi4Ti3O12 and Bi2Ti4O11. The morphology of the as-prepared sample and samples after heat treatment was examined using SEM.

Original languageEnglish
Pages (from-to)2704-2709
JournalCeramics International
Volume45
Issue number2
Early online date6 Oct 2018
DOIs
Publication statusPublished - Feb 2019

Fingerprint

Thermolysis
Perovskite
Oxides
Heating
Bismuth
Crystallization
Dehydration
Mass spectrometry
Protons
Energy dispersive spectroscopy
Ion exchange
Heat treatment
Decomposition
Scanning electron microscopy
Chemical analysis
Temperature
perovskite
Hot Temperature

Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this

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title = "Study on thermolysis process of a new hydrated and protonated perovskite-like oxides H2K0.5Bi2.5Ti4O13·yH2O",
abstract = "A protonated form of the n = 4 layered bismuth containing perovskite-like titanate K2.5Bi2.5Ti4O13 belonging to Ruddlesden-Popper phases was prepared via ion exchange reaction of interlayer K+ with protons. Its composition was investigated by TG ICP and EDX analysis was found to be H2K0.5Bi2.5Ti4O13·H2O. The thermal behavior of the obtained phase was investigated by STA coupled with mass-spectrometry, the structural changes, happening with the sample during heating, were examined by XRD. It was shown that the as-prepared hydrated phase undergoes two-stage dehydration at low temperatures (up to 160 °C). The further heating leads to the gradual decomposition and crystallization of new phases, notably Bi2Ti2O7, Bi4Ti3O12 and Bi2Ti4O11. The morphology of the as-prepared sample and samples after heat treatment was examined using SEM.",
keywords = "A - Powders: solid-state reaction, C - Thermal properties, D - Perovskites, D - Transition metal oxides",
author = "Minich, {Iana A.} and Silyukov, {Oleg I.} and Kulish, {Liliia D.} and Zvereva, {Irina A.}",
year = "2019",
month = "2",
doi = "10.1016/j.ceramint.2018.10.004",
language = "English",
volume = "45",
pages = "2704--2709",
journal = "Ceramics International",
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TY - JOUR

T1 - Study on thermolysis process of a new hydrated and protonated perovskite-like oxides H2K0.5Bi2.5Ti4O13·yH2O

AU - Minich, Iana A.

AU - Silyukov, Oleg I.

AU - Kulish, Liliia D.

AU - Zvereva, Irina A.

PY - 2019/2

Y1 - 2019/2

N2 - A protonated form of the n = 4 layered bismuth containing perovskite-like titanate K2.5Bi2.5Ti4O13 belonging to Ruddlesden-Popper phases was prepared via ion exchange reaction of interlayer K+ with protons. Its composition was investigated by TG ICP and EDX analysis was found to be H2K0.5Bi2.5Ti4O13·H2O. The thermal behavior of the obtained phase was investigated by STA coupled with mass-spectrometry, the structural changes, happening with the sample during heating, were examined by XRD. It was shown that the as-prepared hydrated phase undergoes two-stage dehydration at low temperatures (up to 160 °C). The further heating leads to the gradual decomposition and crystallization of new phases, notably Bi2Ti2O7, Bi4Ti3O12 and Bi2Ti4O11. The morphology of the as-prepared sample and samples after heat treatment was examined using SEM.

AB - A protonated form of the n = 4 layered bismuth containing perovskite-like titanate K2.5Bi2.5Ti4O13 belonging to Ruddlesden-Popper phases was prepared via ion exchange reaction of interlayer K+ with protons. Its composition was investigated by TG ICP and EDX analysis was found to be H2K0.5Bi2.5Ti4O13·H2O. The thermal behavior of the obtained phase was investigated by STA coupled with mass-spectrometry, the structural changes, happening with the sample during heating, were examined by XRD. It was shown that the as-prepared hydrated phase undergoes two-stage dehydration at low temperatures (up to 160 °C). The further heating leads to the gradual decomposition and crystallization of new phases, notably Bi2Ti2O7, Bi4Ti3O12 and Bi2Ti4O11. The morphology of the as-prepared sample and samples after heat treatment was examined using SEM.

KW - A - Powders: solid-state reaction

KW - C - Thermal properties

KW - D - Perovskites

KW - D - Transition metal oxides

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U2 - 10.1016/j.ceramint.2018.10.004

DO - 10.1016/j.ceramint.2018.10.004

M3 - Article

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VL - 45

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JO - Ceramics International

JF - Ceramics International

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