Densification and electrical conductivity of Fe and Mn‐doped Ce0.83Sm0.085Nd0.085O2‐& by solid‐liquid method

Dingbang Jiang; Jianxin Wang; Yu Su; Xiaohui Chang; Baohua Cao; Ming Chen; Qin Wang; Wanbing Guan; Jun Yang

doi:10.1111/ijac.13610

Densification and electrical conductivity of Fe and Mn‐doped Ce_0.83Sm_0.085Nd0.085O_2‐& by solid‐liquid method

Dingbang Jiang, Jianxin Wang, Yu Su, Xiaohui Chang, Baohua Cao, Ming Chen, Qin Wang, Wanbing Guan, Jun Yang

Department of Energy Conversion and Storage

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Abstract

Fe and Mn‐doped Ce0.83Sm0.085Nd0.085O2‐& (SNDC) powders are successfully synthesized by the simple and efficient solid‐liquid method. The crystallinity and morphologies of the powders were characterized by X‐ray diffractometer, Raman spectrum, and scanning electron microscopy. The effect of doping on sintering behavior, grain interior, and grain boundary conductivity are studied. The doping of Fe can effectively reduce the sintering temperature from 1450oC to 1250°C and keep the same density. Compared with SNDC, 1 mol% Fe‐doped SNDC (Fe‐SNDC) sintered at 1250°C shows a higher total conductivity of 2.13 × 10−2 S·cm‐1 at 650°C. Also, it exhibits that doping of Fe can increase the conductivity of grain interior and grain boundary simultaneously. The present work shows that the Fe‐SNDC synthesized by solid‐liquid method can be used as a potential electrolyte for intermediate‐temperature solid oxide fuel cells.

Original language	English
Journal	International Journal of Applied Ceramic Technology
Volume	17
Issue number	6
Pages (from-to)	2716-2724
ISSN	1546-542X
DOIs	https://doi.org/10.1111/ijac.13610
Publication status	Published - 2020

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title = "Densification and electrical conductivity of Fe and Mn‐doped Ce0.83Sm0.085Nd0.085O2‐& by solid‐liquid method",

abstract = "Fe and Mn‐doped Ce0.83Sm0.085Nd0.085O2‐& (SNDC) powders are successfully synthesized by the simple and efficient solid‐liquid method. The crystallinity and morphologies of the powders were characterized by X‐ray diffractometer, Raman spectrum, and scanning electron microscopy. The effect of doping on sintering behavior, grain interior, and grain boundary conductivity are studied. The doping of Fe can effectively reduce the sintering temperature from 1450oC to 1250°C and keep the same density. Compared with SNDC, 1 mol% Fe‐doped SNDC (Fe‐SNDC) sintered at 1250°C shows a higher total conductivity of 2.13 × 10−2 S·cm‐1 at 650°C. Also, it exhibits that doping of Fe can increase the conductivity of grain interior and grain boundary simultaneously. The present work shows that the Fe‐SNDC synthesized by solid‐liquid method can be used as a potential electrolyte for intermediate‐temperature solid oxide fuel cells.",

author = "Dingbang Jiang and Jianxin Wang and Yu Su and Xiaohui Chang and Baohua Cao and Ming Chen and Qin Wang and Wanbing Guan and Jun Yang",

year = "2020",

doi = "10.1111/ijac.13610",

language = "English",

volume = "17",

pages = "2716--2724",

journal = "International Journal of Applied Ceramic Technology",

issn = "1546-542X",

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TY - JOUR

T1 - Densification and electrical conductivity of Fe and Mn‐doped Ce0.83Sm0.085Nd0.085O2‐& by solid‐liquid method

AU - Jiang, Dingbang

AU - Wang, Jianxin

AU - Su, Yu

AU - Chang, Xiaohui

AU - Cao, Baohua

AU - Chen, Ming

AU - Wang, Qin

AU - Guan, Wanbing

AU - Yang, Jun

PY - 2020

Y1 - 2020

N2 - Fe and Mn‐doped Ce0.83Sm0.085Nd0.085O2‐& (SNDC) powders are successfully synthesized by the simple and efficient solid‐liquid method. The crystallinity and morphologies of the powders were characterized by X‐ray diffractometer, Raman spectrum, and scanning electron microscopy. The effect of doping on sintering behavior, grain interior, and grain boundary conductivity are studied. The doping of Fe can effectively reduce the sintering temperature from 1450oC to 1250°C and keep the same density. Compared with SNDC, 1 mol% Fe‐doped SNDC (Fe‐SNDC) sintered at 1250°C shows a higher total conductivity of 2.13 × 10−2 S·cm‐1 at 650°C. Also, it exhibits that doping of Fe can increase the conductivity of grain interior and grain boundary simultaneously. The present work shows that the Fe‐SNDC synthesized by solid‐liquid method can be used as a potential electrolyte for intermediate‐temperature solid oxide fuel cells.

AB - Fe and Mn‐doped Ce0.83Sm0.085Nd0.085O2‐& (SNDC) powders are successfully synthesized by the simple and efficient solid‐liquid method. The crystallinity and morphologies of the powders were characterized by X‐ray diffractometer, Raman spectrum, and scanning electron microscopy. The effect of doping on sintering behavior, grain interior, and grain boundary conductivity are studied. The doping of Fe can effectively reduce the sintering temperature from 1450oC to 1250°C and keep the same density. Compared with SNDC, 1 mol% Fe‐doped SNDC (Fe‐SNDC) sintered at 1250°C shows a higher total conductivity of 2.13 × 10−2 S·cm‐1 at 650°C. Also, it exhibits that doping of Fe can increase the conductivity of grain interior and grain boundary simultaneously. The present work shows that the Fe‐SNDC synthesized by solid‐liquid method can be used as a potential electrolyte for intermediate‐temperature solid oxide fuel cells.

U2 - 10.1111/ijac.13610

DO - 10.1111/ijac.13610

M3 - Journal article

SN - 1546-542X

VL - 17

SP - 2716

EP - 2724

JO - International Journal of Applied Ceramic Technology

JF - International Journal of Applied Ceramic Technology

IS - 6

ER -