Electrochemical characterization of B-site cation-excess Pr2Ni0.75Cu0.25Ga0.05O4+δ cathode for IT-SOFCs

Meng, Xiangwei; Lü, Shiquan; Liu, Shouxiu; Liu, Xiaoyan; Sui, Yingrui; Li, Xiuyan; Pang, Mingjun; Wang, Biao; Ji, Yuan; Hu, Michael Z.

doi:10.1016/j.ceramint.2015.06.028

Title: Electrochemical characterization of B-site cation-excess Pr₂Ni_0.75Cu_0.25Ga_0.05O_4+δ cathode for IT-SOFCs

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Abstract

In this study, we investigate the B-site cation-excess K₂NiF₄-type structure oxide, Pr₂Ni_0.75Cu_0.25Ga_0.05O_4+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 Gd_0.1Ce_0.9O_2-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 (R_p) 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:

Meng, Xiangwei ^[1]; Lü, Shiquan ^[2]; Liu, Shouxiu ^[3]; Liu, Xiaoyan ^[2]; Sui, Yingrui ^[2]; Li, Xiuyan ^[2]; Pang, Mingjun ^[3]; Wang, Biao ^[3]; Ji, Yuan ^[3]; Hu, Michael Z. ^[4]

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:: 2015-06-15

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.

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                    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

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                    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.

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@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}

}

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Title: Electrochemical characterization of B-site cation-excess Pr2Ni0.75Cu0.25Ga0.05O4+δ cathode for IT-SOFCs

Abstract

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Title: Electrochemical characterization of B-site cation-excess Pr₂Ni_0.75Cu_0.25Ga_0.05O_4+δ cathode for IT-SOFCs