The effect of copper infiltration on LSM Cathode microstructure in high temperature solid oxide fuel cells

Document Type : Research Paper

Authors

1 Research Institute of Petroleum Industry

2 Department of Materials and Metallurgical Engineering, Amirkabir University of Technology, Tehran, Iran

3 Department of Materials and Metallurgical Engineering, Amir Kabir University of Technology, Tehran, Iran

4 1Department of Materials and Metallurgical Engineering, Amirkabir University of Technology, Tehran, Iran

Abstract

Solid oxide fuel cells are a technology that can convert chemical energy directly into electrical energy. In the present study, LSM single-phase nanoparticles with the nominal chemical formula La0.8Sr0.2MnO3 were successfully synthesized by the improved Pachin method., and the infiltration of heterogeneous copper and cerium electrocatalysts on the cathode was investigated. X-ray diffraction (XRD) was used to determine the phase composition. The microstructure of synthesized powdes, and surface morphology were characterized using a Scanning Electron Microscope (SEM). The coated composition was examined using Elemental Energy Dispersive X-ray Spectroscopy (EDS) and elemental mapping image s.The microstructure of the electrocatalysts inoculated on the cathode was investigated by FE-SEM. The inoculation of 0.5M copper + 0.5M cerium nanoparticles with broad distribution on the LSM cathode surface with dimensions from 23 to 52 nm was obtained. While using one-component solutions of copper and cerium, nanoparticles with dimensions of 39 to 61 nm and 20 to 42 nm were created on the cathode surface, respectively.

Keywords

Main Subjects

References

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Hydrogen, Fuel Cell & Energy Storage
Volume 10, Issue 4
December 2023
Pages 281-290

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