Microstructure and electrochemical behavior of layered cathodes for molten carbonate fuel cell

Abstract In the present paper, we demonstrate how modifications of microstructure and chemical composition can influence electrochemical behavior cathodes for molten carbonate fuel cells (MCFCs). Based on our experience, designed new MCFC cathode microstructures combining layers made porous silver, nickel oxide or foam to overcome common issues with internal resistance cell. The standard NiO manufactured were extensively investigated using scanning electron microscopy (SEM) porosity measurements. overall cell performance examined by means impedance spectroscopy single-cell tests in operation conditions. results show that a silver layer tape cast onto used as support substantially decrease components representing charge transfer mass transport phenomena, respectively. Therefore, it is beneficial combine them into three-layer since facilitates separation predominant physio-chemical processes gas ions respective ensuring high efficiency. superiority has been proven low power density compared cathode.