Preparation, Chemical Compatibility and Particle Size of PrBaCo2O5+δ-Ce0.8Sm0.2O1.9 Composite Cathode Powder

2018 5th International Conference on Advanced Composite Materials and Manufacturing Engineering

Li, Ruifeng^1,2 ; Wu, Tiantian^1 ; Zhang, Jinjin^1 ; Zhai, Wenzhou^1 ; Hua, Shaojie^2

School of Chemistry and Chemical Engineering, Key Laboratory of Inorganic Functional Materials, Huangshan University, Huangshan

245041, China^1

Postdoctoral Scientific Research Workstation (Postdoctoral Programme), Huangshan Benma Group Co., Ltd., Huangshan

245900, China^2

关键词: Ball-milled;    Cathode powders;    Chemical compatibility;    Composite cathode;    Electrolyte powders;    Intermediate temperature solid oxide fuel cell;    Optimal temperature;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/394/2/022050/pdf
DOI  :  10.1088/1757-899X/394/2/022050

来源: IOP

【 摘 要 】

The PrBaCo2O5+δ cathode powder was prepared by solid-state reaction using Pr6O11, BaCO3, Co2O3 and Fe2O3 as starting materials, and calcined at 1000°C, 1100°C, 1200°C and 1300° for 2h in air, respectively. Their crystal structures were analyzed to obtain the optimal temperature of solid-state reaction for PrBaCo2O5+δ The equal amount of PrBaCo2O5+δ calcined at optimal temperature and Ce0.8Sm0.2O1.9 electrolyte powder were ball-milled and then calcined to prepare composite cathode powder for intermediate-temperature solid oxide fuel cells. Crystal structure was identified by X-ray diffraction, to investigate the chemical compatibility between them. According to the experimental results, the optimal temperature of solid-state reaction for PrBaCo2O5+δ is about 1300°, PrBaCo2O5+δ is chemically stable with Ce0.8Sm0.2O1.9, and the medium diameter D50 of PrBaCo2O5+δ-Ce0.8Sm0.2O1.9 powder is about 14.41μm.