Enhanced electrical conductivity of doped CeO2 under millimeter-wave irradiation heating

Salmie Suhana Binti Che Abdullah; Takashi Teranishi; Hidetaka Hayashi; Akira Kishimoto

doi:10.1016/j.matdes.2016.11.051

Enhanced electrical conductivity of doped CeO₂ under millimeter-wave irradiation heating

Salmie Suhana Binti Che Abdullah, Takashi Teranishi, Hidetaka Hayashi, Akira Kishimoto

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

12 Citations (Scopus)

Abstract

The electrical conductivity of promising candidates for intermediate temperature solid oxide fuel cell (IT-SOFC) electrolyte; 10–25 mol% gadolinium or samarium-doped CeO₂ was measured through impedance measurement under millimeter-wave irradiation heating. Conductivity value for all samples was found to be higher when measured under millimeter-wave irradiation heating than that measured under conventional heating. Results from activation energy show that energy for cation-vacancy dissociation was largely affected by millimeter-wave irradiation, where significant reduction was observed, thus improved the conduction process. Possibility of contribution from non-thermal ponderomotive force in conduction process was discussed.

Original language	English
Pages (from-to)	231-237
Number of pages	7
Journal	Materials and Design
Volume	115
DOIs	https://doi.org/10.1016/j.matdes.2016.11.051
Publication status	Published - Feb 5 2017

Keywords

Doped CeO
Electrical conductivity
Microwave energy
Millimeter-wave irradiation heating
Solid electrolytes

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1016/j.matdes.2016.11.051

Cite this

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title = "Enhanced electrical conductivity of doped CeO2 under millimeter-wave irradiation heating",

abstract = "The electrical conductivity of promising candidates for intermediate temperature solid oxide fuel cell (IT-SOFC) electrolyte; 10–25 mol% gadolinium or samarium-doped CeO2 was measured through impedance measurement under millimeter-wave irradiation heating. Conductivity value for all samples was found to be higher when measured under millimeter-wave irradiation heating than that measured under conventional heating. Results from activation energy show that energy for cation-vacancy dissociation was largely affected by millimeter-wave irradiation, where significant reduction was observed, thus improved the conduction process. Possibility of contribution from non-thermal ponderomotive force in conduction process was discussed.",

keywords = "Doped CeO, Electrical conductivity, Microwave energy, Millimeter-wave irradiation heating, Solid electrolytes",

author = "{Che Abdullah}, {Salmie Suhana Binti} and Takashi Teranishi and Hidetaka Hayashi and Akira Kishimoto",

note = "Funding Information: This work was partially supported by JSPS KAKENHI (grant number: 16H04497 ). Salmie Suhana Che Abdullah is financially supported by the Ministry of Education Malaysia and Universiti Malaysia Perlis (UniMAP). Publisher Copyright: {\textcopyright} 2016 Elsevier Ltd",

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AU - Che Abdullah, Salmie Suhana Binti

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AU - Hayashi, Hidetaka

AU - Kishimoto, Akira

N1 - Funding Information: This work was partially supported by JSPS KAKENHI (grant number: 16H04497 ). Salmie Suhana Che Abdullah is financially supported by the Ministry of Education Malaysia and Universiti Malaysia Perlis (UniMAP). Publisher Copyright: © 2016 Elsevier Ltd

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N2 - The electrical conductivity of promising candidates for intermediate temperature solid oxide fuel cell (IT-SOFC) electrolyte; 10–25 mol% gadolinium or samarium-doped CeO2 was measured through impedance measurement under millimeter-wave irradiation heating. Conductivity value for all samples was found to be higher when measured under millimeter-wave irradiation heating than that measured under conventional heating. Results from activation energy show that energy for cation-vacancy dissociation was largely affected by millimeter-wave irradiation, where significant reduction was observed, thus improved the conduction process. Possibility of contribution from non-thermal ponderomotive force in conduction process was discussed.

AB - The electrical conductivity of promising candidates for intermediate temperature solid oxide fuel cell (IT-SOFC) electrolyte; 10–25 mol% gadolinium or samarium-doped CeO2 was measured through impedance measurement under millimeter-wave irradiation heating. Conductivity value for all samples was found to be higher when measured under millimeter-wave irradiation heating than that measured under conventional heating. Results from activation energy show that energy for cation-vacancy dissociation was largely affected by millimeter-wave irradiation, where significant reduction was observed, thus improved the conduction process. Possibility of contribution from non-thermal ponderomotive force in conduction process was discussed.

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KW - Microwave energy

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