Effect of transition metal oxides doping on Ce0.9Sm0.05Nd0.05O1.95 solid electrolyte materials

Ming Zhou; Lin Ge; Han Chen; Lucun Guo

doi:10.1007/s40145-012-0013-1

Effect of transition metal oxides doping on Ce_0.9Sm_0.05Nd_0.05O_1.95 solid electrolyte materials

Ming Zhou, Lin Ge, Han Chen, Lucun Guo

College of Materials Science and Engineering

Nanjing Tech University

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

7 Scopus citations

Abstract

The effect of transition metal oxides (TMOs) CoO_1.5, FeO_1.5 and MnO₂ addition on Ce_0.9Sm_0.05Nd_0.05O_1.95 was studied. The crystal structures, microstructures, thermal expansion and electrical properties were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), dilatometer and AC impedance spectroscopy, respectively. The results show that the TMOs addition remarkably promotes the densification of Ce_0.9Sm_0.05Nd_0.05O_1.95 and reduces the sintering temperature by ∼150 °C. The samples with TMOs addition sintered at 1450 °C exhibit higher conductivities than those sintered at 1500 °C. The maximum conductivity of 0.040 s.cm⁻¹ at 700 °C was achieved with 1 mol% FeO_1.5 doping when sintered at 1450 °C. In addition, the thermal expansion was linear for all the samples. The doping of TMOs does not appreciably change thermal expansion coefficient.

Original language	English
Pages (from-to)	150-156
Number of pages	7
Journal	Journal of Advanced Ceramics
Volume	1
Issue number	2
DOIs	https://doi.org/10.1007/s40145-012-0013-1
State	Published - 1 Jun 2012

Keywords

ionic conductivity
microstructure
thermal expansion
transition metal oxides

Access to Document

10.1007/s40145-012-0013-1

Cite this

@article{37788e9928b043ee96b3463358c4a57b,

title = "Effect of transition metal oxides doping on Ce0.9Sm0.05Nd0.05O1.95 solid electrolyte materials",

abstract = "The effect of transition metal oxides (TMOs) CoO1.5, FeO1.5 and MnO2 addition on Ce0.9Sm0.05Nd0.05O1.95 was studied. The crystal structures, microstructures, thermal expansion and electrical properties were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), dilatometer and AC impedance spectroscopy, respectively. The results show that the TMOs addition remarkably promotes the densification of Ce0.9Sm0.05Nd0.05O1.95 and reduces the sintering temperature by ∼150 °C. The samples with TMOs addition sintered at 1450 °C exhibit higher conductivities than those sintered at 1500 °C. The maximum conductivity of 0.040 s.cm−1 at 700 °C was achieved with 1 mol% FeO1.5 doping when sintered at 1450 °C. In addition, the thermal expansion was linear for all the samples. The doping of TMOs does not appreciably change thermal expansion coefficient.",

keywords = "ionic conductivity, microstructure, thermal expansion, transition metal oxides",

author = "Ming Zhou and Lin Ge and Han Chen and Lucun Guo",

note = "Publisher Copyright: {\textcopyright} 2012, The Author(s).",

year = "2012",

month = jun,

day = "1",

doi = "10.1007/s40145-012-0013-1",

language = "英语",

volume = "1",

pages = "150--156",

journal = "Journal of Advanced Ceramics",

issn = "2226-4108",

publisher = "Tsinghua University Press",

number = "2",

}

TY - JOUR

T1 - Effect of transition metal oxides doping on Ce0.9Sm0.05Nd0.05O1.95 solid electrolyte materials

AU - Zhou, Ming

AU - Ge, Lin

AU - Chen, Han

AU - Guo, Lucun

PY - 2012/6/1

Y1 - 2012/6/1

N2 - The effect of transition metal oxides (TMOs) CoO1.5, FeO1.5 and MnO2 addition on Ce0.9Sm0.05Nd0.05O1.95 was studied. The crystal structures, microstructures, thermal expansion and electrical properties were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), dilatometer and AC impedance spectroscopy, respectively. The results show that the TMOs addition remarkably promotes the densification of Ce0.9Sm0.05Nd0.05O1.95 and reduces the sintering temperature by ∼150 °C. The samples with TMOs addition sintered at 1450 °C exhibit higher conductivities than those sintered at 1500 °C. The maximum conductivity of 0.040 s.cm−1 at 700 °C was achieved with 1 mol% FeO1.5 doping when sintered at 1450 °C. In addition, the thermal expansion was linear for all the samples. The doping of TMOs does not appreciably change thermal expansion coefficient.

AB - The effect of transition metal oxides (TMOs) CoO1.5, FeO1.5 and MnO2 addition on Ce0.9Sm0.05Nd0.05O1.95 was studied. The crystal structures, microstructures, thermal expansion and electrical properties were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), dilatometer and AC impedance spectroscopy, respectively. The results show that the TMOs addition remarkably promotes the densification of Ce0.9Sm0.05Nd0.05O1.95 and reduces the sintering temperature by ∼150 °C. The samples with TMOs addition sintered at 1450 °C exhibit higher conductivities than those sintered at 1500 °C. The maximum conductivity of 0.040 s.cm−1 at 700 °C was achieved with 1 mol% FeO1.5 doping when sintered at 1450 °C. In addition, the thermal expansion was linear for all the samples. The doping of TMOs does not appreciably change thermal expansion coefficient.

KW - ionic conductivity

KW - microstructure

KW - thermal expansion

KW - transition metal oxides

UR - http://www.scopus.com/inward/record.url?scp=84973862401&partnerID=8YFLogxK

U2 - 10.1007/s40145-012-0013-1

DO - 10.1007/s40145-012-0013-1

M3 - 文章

AN - SCOPUS:84973862401

SN - 2226-4108

VL - 1

SP - 150

EP - 156

JO - Journal of Advanced Ceramics

JF - Journal of Advanced Ceramics

IS - 2

ER -

Effect of transition metal oxides doping on Ce_0.9Sm_0.05Nd_0.05O_1.95 solid electrolyte materials

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this