Research Article

Electrochemical Properties of Ce0.5Sr0.5 (Co0.8Fe0.2)1−xZrxO3−δ Cathode Materials for Low Intermediate Temperature Solid Oxide Fuel Cells (LIT-SOFCs) Synthesized by Sol-Gel Method

Figure 2

SEM micrographs for Ce0.5Sr0.5 (Co0.8Fe0.2)1−xZrxO3−δ samples at concentrations of x = 0, 0.1, 0.15, and 0.2, respectively.
(a)
(b)
(c)
(d)