Synthesis and characterization of Ce 0.6 Sr 0.4 Fe 0.8 Co 0.2 O 3– δ perovskite material: Potential cathode material for low temperature SOFCs

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

“…From this point of view, the concentration x � 0.2 CSCFZ material can be considered as better cathodic candidates. e obtained ASR results are much lower than previous literature reported on the cells 1.74 Ω•cm 2 at 600°C [31][32][33], showing that this cathode can be used in the LIT-SOFCs and are in the range of 0.07-0.3 Ω•cm 2 [24]: where s is DC conductivity, t is the thickness of the sample, R is the resistance of the sample, and A is the area of the sample [34].…”

Novel Perovskite Structured Nd0.5Ba0.5Co1/3Ni1/3Mn1/3O3−δ as Highly Efficient Catalyst for Oxygen Electrode in Solid Oxide Electrochemical Cells

“…Infrared spectroscopy was performed on NBCNM before testing and after SOFC and SOEC operations, and the test results are shown in Figure e. The infrared spectrum can be divided into four regions, among which, A1 and A2 regions are both O–H vibrational peaks in the range of 3500–3800 cm –1 mainly due to the material’s own post-testing water absorption, while the hydroxyl peaks near 1500 cm –1 are attributed to the passage of large amounts of water vapor at the cathode end of the material during the testing process, resulting in some O–H entering into the vibrational peaks in the A3 region, which are mainly CO bonds and CO 3 2– , are mainly due to the activation of NCAL at the anodic end by H 2 during the cell operation, causing some of the free Li + to migrate to the cathode and combine with CO 2 in the air to produce Li 2 CO 3 . − The vibrational peaks in the A4 region below 800 cm –1 are mainly considered as the absorption bands of metal oxides, when the number of spectral bands is small and often broadband, and the IR vibrations are classified as lattice vibration modes, mainly caused by the vibration of oxygen ions relative to metal cations or the relative movement between cations.…”

How to efficiently utilize electrode materials in supercapattery?

“…41,42 Some rare earth-based materials can also be used in energy fields, such as hydrogen storage, battery, etc. [43][44][45][46][47][48][49][50] Rare earth ionic colloids also show high electrochemical activity at room temperature. The colloidal supercapattery has achieved both high capacity and high power in the same electrochemical energy storage system.…”