Perovskite-type (Ba0.15Sr0.85)(B0.15Co0.85)O3 − Δ (B = Ti, Nb) oxides: structural stability, oxygen nonstoichiometry, and oxygen sorption/desorption properties

Hongquan Lin; Hui Lu; Shuyun Cao; Jianzhou Gui; Dan Liu; Jung Hoon Park

doi:10.1007/s11581-016-1835-6

Perovskite-type (Ba_0.15Sr_0.85)(B_0.15Co_0.85)O_3 − Δ (B = Ti, Nb) oxides: structural stability, oxygen nonstoichiometry, and oxygen sorption/desorption properties

Hongquan Lin
, Hui Lu
, Shuyun Cao
, Jianzhou Gui
, Dan Liu
, Jung Hoon Park

Department of Chemical and Biochemical Engineering

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

The perovskite-type Ba- and Ti/Nb-doped (Ba_0.15Sr_0.85)(B_0.15Co_0.85)O_3 − δ (B = Ti, Nb) oxides were synthesized successfully by the solid-state reaction method. Crystal structure, elemental compositions, and oxygen nonstoichiometry of the as-synthesized (Ba_0.15Sr_0.85)(B_0.15Co_0.85)O_3 − δ (B = Ti, Nb) oxides were investigated by X-ray diffraction (XRD), scanning electron microscopy-energy dispersive spectrometry (SEM-EDS), inductively coupled plasma (ICP)-atomic emission spectrometry, thermogravimetry (TG), and iodometric titration. XRD results demonstrate that the as-obtained (Ba_0.15Sr_0.85)(B_0.15Co_0.85)O_3 − δ (B = Ti, Nb) oxides possess purely cubic perovskite-type structures. The temperature-swing oxygen sorption/desorption properties of the as-synthesized (Ba_0.15Sr_0.85)(B_0.15Co_0.85)O_3 − δ (B = Ti, Nb) perovskite-type oxides were studied by the dynamic TG. Results show that the structural stability of the co-doped (Ba_0.15Sr_0.85)(B_0.15Co_0.85)O_3 − δ (B = Ti, Nb) oxides is improved greatly, and the high oxygen sorption capacity for the perovskite-type (Ba_0.15Sr_0.85)(B_0.15Co_0.85)O_3 − δ (B = Ti, Nb) oxides is also obtained between 300 and 950 °C in air.

Original language	English
Pages (from-to)	717-724
Number of pages	8
Journal	Ionics
Volume	23
Issue number	3
DOIs	https://doi.org/10.1007/s11581-016-1835-6
State	Published - 1 Mar 2017

Keywords

Crystal structure
Oxygen sorption/desorption
Perovskite oxides
Solid-state reaction
Structural stability

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10.1007/s11581-016-1835-6

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title = "Perovskite-type (Ba0.15Sr0.85)(B0.15Co0.85)O3 − Δ (B = Ti, Nb) oxides: structural stability, oxygen nonstoichiometry, and oxygen sorption/desorption properties",

abstract = "The perovskite-type Ba- and Ti/Nb-doped (Ba0.15Sr0.85)(B0.15Co0.85)O3 − δ (B = Ti, Nb) oxides were synthesized successfully by the solid-state reaction method. Crystal structure, elemental compositions, and oxygen nonstoichiometry of the as-synthesized (Ba0.15Sr0.85)(B0.15Co0.85)O3 − δ (B = Ti, Nb) oxides were investigated by X-ray diffraction (XRD), scanning electron microscopy-energy dispersive spectrometry (SEM-EDS), inductively coupled plasma (ICP)-atomic emission spectrometry, thermogravimetry (TG), and iodometric titration. XRD results demonstrate that the as-obtained (Ba0.15Sr0.85)(B0.15Co0.85)O3 − δ (B = Ti, Nb) oxides possess purely cubic perovskite-type structures. The temperature-swing oxygen sorption/desorption properties of the as-synthesized (Ba0.15Sr0.85)(B0.15Co0.85)O3 − δ (B = Ti, Nb) perovskite-type oxides were studied by the dynamic TG. Results show that the structural stability of the co-doped (Ba0.15Sr0.85)(B0.15Co0.85)O3 − δ (B = Ti, Nb) oxides is improved greatly, and the high oxygen sorption capacity for the perovskite-type (Ba0.15Sr0.85)(B0.15Co0.85)O3 − δ (B = Ti, Nb) oxides is also obtained between 300 and 950 °C in air.",

keywords = "Crystal structure, Oxygen sorption/desorption, Perovskite oxides, Solid-state reaction, Structural stability",

author = "Hongquan Lin and Hui Lu and Shuyun Cao and Jianzhou Gui and Dan Liu and Park, \{Jung Hoon\}",

note = "Publisher Copyright: {\textcopyright} 2016, Springer-Verlag Berlin Heidelberg.",

year = "2017",

month = mar,

day = "1",

doi = "10.1007/s11581-016-1835-6",

language = "English",

volume = "23",

pages = "717--724",

journal = "Ionics",

issn = "0947-7047",

publisher = "Springer Science and Business Media Deutschland GmbH",

number = "3",

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TY - JOUR

T1 - Perovskite-type (Ba0.15Sr0.85)(B0.15Co0.85)O3 − Δ (B = Ti, Nb) oxides

T2 - structural stability, oxygen nonstoichiometry, and oxygen sorption/desorption properties

AU - Lin, Hongquan

AU - Lu, Hui

AU - Cao, Shuyun

AU - Gui, Jianzhou

AU - Liu, Dan

AU - Park, Jung Hoon

PY - 2017/3/1

Y1 - 2017/3/1

N2 - The perovskite-type Ba- and Ti/Nb-doped (Ba0.15Sr0.85)(B0.15Co0.85)O3 − δ (B = Ti, Nb) oxides were synthesized successfully by the solid-state reaction method. Crystal structure, elemental compositions, and oxygen nonstoichiometry of the as-synthesized (Ba0.15Sr0.85)(B0.15Co0.85)O3 − δ (B = Ti, Nb) oxides were investigated by X-ray diffraction (XRD), scanning electron microscopy-energy dispersive spectrometry (SEM-EDS), inductively coupled plasma (ICP)-atomic emission spectrometry, thermogravimetry (TG), and iodometric titration. XRD results demonstrate that the as-obtained (Ba0.15Sr0.85)(B0.15Co0.85)O3 − δ (B = Ti, Nb) oxides possess purely cubic perovskite-type structures. The temperature-swing oxygen sorption/desorption properties of the as-synthesized (Ba0.15Sr0.85)(B0.15Co0.85)O3 − δ (B = Ti, Nb) perovskite-type oxides were studied by the dynamic TG. Results show that the structural stability of the co-doped (Ba0.15Sr0.85)(B0.15Co0.85)O3 − δ (B = Ti, Nb) oxides is improved greatly, and the high oxygen sorption capacity for the perovskite-type (Ba0.15Sr0.85)(B0.15Co0.85)O3 − δ (B = Ti, Nb) oxides is also obtained between 300 and 950 °C in air.

AB - The perovskite-type Ba- and Ti/Nb-doped (Ba0.15Sr0.85)(B0.15Co0.85)O3 − δ (B = Ti, Nb) oxides were synthesized successfully by the solid-state reaction method. Crystal structure, elemental compositions, and oxygen nonstoichiometry of the as-synthesized (Ba0.15Sr0.85)(B0.15Co0.85)O3 − δ (B = Ti, Nb) oxides were investigated by X-ray diffraction (XRD), scanning electron microscopy-energy dispersive spectrometry (SEM-EDS), inductively coupled plasma (ICP)-atomic emission spectrometry, thermogravimetry (TG), and iodometric titration. XRD results demonstrate that the as-obtained (Ba0.15Sr0.85)(B0.15Co0.85)O3 − δ (B = Ti, Nb) oxides possess purely cubic perovskite-type structures. The temperature-swing oxygen sorption/desorption properties of the as-synthesized (Ba0.15Sr0.85)(B0.15Co0.85)O3 − δ (B = Ti, Nb) perovskite-type oxides were studied by the dynamic TG. Results show that the structural stability of the co-doped (Ba0.15Sr0.85)(B0.15Co0.85)O3 − δ (B = Ti, Nb) oxides is improved greatly, and the high oxygen sorption capacity for the perovskite-type (Ba0.15Sr0.85)(B0.15Co0.85)O3 − δ (B = Ti, Nb) oxides is also obtained between 300 and 950 °C in air.

KW - Crystal structure

KW - Oxygen sorption/desorption

KW - Perovskite oxides

KW - Solid-state reaction

KW - Structural stability

UR - https://www.scopus.com/pages/publications/84988706154

U2 - 10.1007/s11581-016-1835-6

DO - 10.1007/s11581-016-1835-6

M3 - Article

AN - SCOPUS:84988706154

SN - 0947-7047

VL - 23

SP - 717

EP - 724

JO - Ionics

JF - Ionics

IS - 3

ER -

Perovskite-type (Ba_0.15Sr_0.85)(B_0.15Co_0.85)O_3 − Δ (B = Ti, Nb) oxides: structural stability, oxygen nonstoichiometry, and oxygen sorption/desorption properties

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