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

Hydrogen, Fuel Cell & Energy Storage

Articles in Press, Accepted Manuscript
Available Online from 07 May 2023

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