Effect of B-site deficiency on the (In, Fe) co-doped SrTiO3

Runping Li; Cheng Zhang; Jianhua Liu; Junwen Zhou; Lei Xu

doi:10.1007/s00339-019-3068-9

Effect of B-site deficiency on the (In, Fe) co-doped SrTiO₃

Runping Li, Cheng Zhang, Jianhua Liu^*, Junwen Zhou, Lei Xu

^*Corresponding author for this work

Kunming University of Science and Technology

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

8 Citations (Scopus)

Abstract

Indium and iron were co-doped at the Ti site of strontium titanate (SrTiO₃) as dopant to improve the electrical properties of the anode material for solid oxide fuel cells. The effect of B-site deficiency on the weight loss, phase, lattice parameter, density, microstructure and electrical properties of Sr(Ti_0.8In_0.1Fe_0.1)_1−xO_3−δ (x = 0, 0.02, 0.06) samples was investigated. A compound solid solution was formed at 977 °C. Sr(Ti_0.8In_0.1Fe_0.1)_1−xO_3−δ powders sintered at 1435 °C for 5 h in air exhibited a single-phas cubic perovskite structure. With increasing B-site deficiency level, the relative density and sinterability of (In, Fe) co-doped SrTiO₃ decrease, whereas its lattice parameter, porosity and total conductivity increase.

Original language	English
Article number	773
Journal	Applied Physics A: Materials Science and Processing
Volume	125
Issue number	11
DOIs	https://doi.org/10.1007/s00339-019-3068-9
Publication status	Published - 1 Nov 2019
Externally published	Yes

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title = "Effect of B-site deficiency on the (In, Fe) co-doped SrTiO3 ",

abstract = "Indium and iron were co-doped at the Ti site of strontium titanate (SrTiO3) as dopant to improve the electrical properties of the anode material for solid oxide fuel cells. The effect of B-site deficiency on the weight loss, phase, lattice parameter, density, microstructure and electrical properties of Sr(Ti0.8In0.1Fe0.1)1−xO3−δ (x = 0, 0.02, 0.06) samples was investigated. A compound solid solution was formed at 977 °C. Sr(Ti0.8In0.1Fe0.1)1−xO3−δ powders sintered at 1435 °C for 5 h in air exhibited a single-phas cubic perovskite structure. With increasing B-site deficiency level, the relative density and sinterability of (In, Fe) co-doped SrTiO3 decrease, whereas its lattice parameter, porosity and total conductivity increase.",

author = "Runping Li and Cheng Zhang and Jianhua Liu and Junwen Zhou and Lei Xu",

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AU - Li, Runping

AU - Zhang, Cheng

AU - Liu, Jianhua

AU - Zhou, Junwen

AU - Xu, Lei

PY - 2019/11/1

Y1 - 2019/11/1

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AB - Indium and iron were co-doped at the Ti site of strontium titanate (SrTiO3) as dopant to improve the electrical properties of the anode material for solid oxide fuel cells. The effect of B-site deficiency on the weight loss, phase, lattice parameter, density, microstructure and electrical properties of Sr(Ti0.8In0.1Fe0.1)1−xO3−δ (x = 0, 0.02, 0.06) samples was investigated. A compound solid solution was formed at 977 °C. Sr(Ti0.8In0.1Fe0.1)1−xO3−δ powders sintered at 1435 °C for 5 h in air exhibited a single-phas cubic perovskite structure. With increasing B-site deficiency level, the relative density and sinterability of (In, Fe) co-doped SrTiO3 decrease, whereas its lattice parameter, porosity and total conductivity increase.

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Effect of B-site deficiency on the (In, Fe) co-doped SrTiO₃

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