Ceramics and Composite Materials

Biography

Biography: Shabana P S Shaikh

Abstract

The present work is focused on the comparative analysis of electrochemical and structural properties of anode materials for solid oxide fuel cells (SOFCs) and the influence of factors affected on electrode performance. The Cu0.5Ce0.5O2-ẟ was prepared by CitrateeNitrate route (CNP) and its formation is confirmed by XRD. The crystallite size of anode materials decreases with change of synthesis route. The highest conductivity is found to be 3.7×102 and 5.2×102 S cm2 at 660 oC before and after reduction for CNP with suitable mechanical strength. The electrochemical performance of anode/electrolyte/anode interface of Cu0.5Ce0.5O2-ẟ is studied after reduction in presence of gas mixture (10%H2 + 90%N2) using electrochemical impedance spectroscopy. The conductivity for the Cell-800 prepared by CNP in presence of gas (10%H2 + 90%N2) shows lowest activation energy 1.28 eV. Thus, CNP is most promising method for obtaining the suitable anode material for the application of SOFC than UreaeNitrate Process (UNP) and GlycineeNitrate Process (GNP).