Electrochemical characterization of B-site cation-excess Pr2Ni0.75Cu0.25Ga0.05O4+δ cathode for IT-SOFCs
Abstract
In this study, we investigate the B-site cation-excess K2NiF4-type structure oxide, Pr2Ni0.75Cu0.25Ga0.05O4+δ (PNCG) as a cathode for intermediate-temperature solid oxide fuel cells (IT-SOFCs). XRD result shows that PNCG cathode is chemically compatible with the electrolyte Gd0.1Ce0.9O2-δ (GDC) at 900°C for 5 h. The PNCG material exhibits a semiconductor to metal transition around 425°C. The thermal expansion coefficient (TEC) of the PNCG sample is 12.72×10-6 K-1 between 30 and 850°C in air. The polarization resistance (Rp) of PNCG cathode on GDC electrolyte is 0.105, 0.197 and 0.300 Ω cm2 at 800, 750, 700°C, respectively. A maximum power density of 371 mW cm-2 is obtained at 800°C for single-cell with 300 μm thick GDC electrolyte and PNCG cathode. Finally, the results of this study demonstrate that PNCG can be a promising cathode material for IT-SOFCs.
- Authors:
-
- Jilin Normal Univ., Siping (China). Key Lab. of Functional Materials Physics and Chemistry of the Ministry of Education; Jilin Univ., Changchun (China). Key Lab. of Physics and Technology for Advanced Batteries
- Jilin Normal Univ., Siping (China). Key Lab. of Functional Materials Physics and Chemistry of the Ministry of Education
- Jilin Univ., Changchun (China). Key Lab. of Physics and Technology for Advanced Batteries
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Jilin Normal Univ., Siping (China); Jilin Univ., Changchun (China)
- Sponsoring Org.:
- USDOE; Program for the Development of Science and Technology of Jilin Province (China); Twentieth Five-Year Program for Science and Technology of Education Dept. of Jilin Province (China); Program for the Development of Science and Technology of Siping City (China); Twentieth Five-Year Program for Science and Technology of Education Department of Jilin Province (China)
- OSTI Identifier:
- 1265566
- Alternate Identifier(s):
- OSTI ID: 1265634; OSTI ID: 1327632
- Grant/Contract Number:
- 20140520103JH; 20130447; 2012036; AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Ceramics International
- Additional Journal Information:
- Journal Volume: 41; Journal Issue: 9B; Journal ID: ISSN 0272-8842
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Solid oxide fuel cell; Cathode; Electrochemical performance; 36 MATERIALS SCIENCE; solid oxide fuel cell; cathode; electrochemical performance
Citation Formats
Meng, Xiangwei, Lü, Shiquan, Liu, Shouxiu, Liu, Xiaoyan, Sui, Yingrui, Li, Xiuyan, Pang, Mingjun, Wang, Biao, Ji, Yuan, and Hu, Michael Z. Electrochemical characterization of B-site cation-excess Pr2Ni0.75Cu0.25Ga0.05O4+δ cathode for IT-SOFCs. United States: N. p., 2015.
Web. doi:10.1016/j.ceramint.2015.06.028.
Meng, Xiangwei, Lü, Shiquan, Liu, Shouxiu, Liu, Xiaoyan, Sui, Yingrui, Li, Xiuyan, Pang, Mingjun, Wang, Biao, Ji, Yuan, & Hu, Michael Z. Electrochemical characterization of B-site cation-excess Pr2Ni0.75Cu0.25Ga0.05O4+δ cathode for IT-SOFCs. United States. https://doi.org/10.1016/j.ceramint.2015.06.028
Meng, Xiangwei, Lü, Shiquan, Liu, Shouxiu, Liu, Xiaoyan, Sui, Yingrui, Li, Xiuyan, Pang, Mingjun, Wang, Biao, Ji, Yuan, and Hu, Michael Z. Mon .
"Electrochemical characterization of B-site cation-excess Pr2Ni0.75Cu0.25Ga0.05O4+δ cathode for IT-SOFCs". United States. https://doi.org/10.1016/j.ceramint.2015.06.028. https://www.osti.gov/servlets/purl/1265566.
@article{osti_1265566,
title = {Electrochemical characterization of B-site cation-excess Pr2Ni0.75Cu0.25Ga0.05O4+δ cathode for IT-SOFCs},
author = {Meng, Xiangwei and Lü, Shiquan and Liu, Shouxiu and Liu, Xiaoyan and Sui, Yingrui and Li, Xiuyan and Pang, Mingjun and Wang, Biao and Ji, Yuan and Hu, Michael Z.},
abstractNote = {In this study, we investigate the B-site cation-excess K2NiF4-type structure oxide, Pr2Ni0.75Cu0.25Ga0.05O4+δ (PNCG) as a cathode for intermediate-temperature solid oxide fuel cells (IT-SOFCs). XRD result shows that PNCG cathode is chemically compatible with the electrolyte Gd0.1Ce0.9O2-δ (GDC) at 900°C for 5 h. The PNCG material exhibits a semiconductor to metal transition around 425°C. The thermal expansion coefficient (TEC) of the PNCG sample is 12.72×10-6 K-1 between 30 and 850°C in air. The polarization resistance (Rp) of PNCG cathode on GDC electrolyte is 0.105, 0.197 and 0.300 Ω cm2 at 800, 750, 700°C, respectively. A maximum power density of 371 mW cm-2 is obtained at 800°C for single-cell with 300 μm thick GDC electrolyte and PNCG cathode. Finally, the results of this study demonstrate that PNCG can be a promising cathode material for IT-SOFCs.},
doi = {10.1016/j.ceramint.2015.06.028},
journal = {Ceramics International},
number = 9B,
volume = 41,
place = {United States},
year = {2015},
month = {6}
}
Web of Science