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Results for "Advanced Microstructure Optimization Strategies for High-Temperature CO2 Electrolysis: Infiltration and In-situ Exsolution"

  • Advanced Microstructure Optimization Strategies for High-Temperature CO2 Electrolysis: Infiltration and In-situ Exsolution

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    Spring 2020

    Ding,Shaochen

    optimized microstructure of the cathode. Secondly, to further improve the catalytic activity for CO2 conversion, (La0.65Sr0.3Ce0.05)0.9(Cr0.5Fe0.5)0.85Ni0.15O3- (Ni-LSCeCrF)/GDC nanostructured cathode was fabricated by infiltration and in situ exsolution of highly active Ni-Fe alloy nanoparticles. The

    effects of electrode microstructure optimization on the electrochemical performance were investigated in the atmospheres of pure CO2, and mixture of CO2 and CO (CO2 mole fraction as 0.7). The Ni-LSCeCrF/GDC cathode shows significantly improved electrochemical performance, CO production rate, and Faraday

    efficiency for CO2 reduction in both atmospheres. Furthermore, collaboration with Ms. Wanying Pang, PhD student supervised by Professor Zhehui Jin, density function theory calculations were carried out to investigate the exsolution trends of transition metals on B-site of a perovskite lattice. The results

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