Effects of Gd and Sr co-doping in CeO2 for electrolyte application in solid oxide fuel cell (SOFC)

Sucrose‐nitrate auto combustion synthesis of Ce 0.85 Ln 0.10 Sr 0.05 O 2‐ δ (Ln = La and Gd) electrolytes for solid oxide fuel cells

“…A straight‐line behavior in the low‐frequency region is more clearly visible in the impedance plots of CGSO than CLSO. It has been reported in the literature that in the impedance plots of CeO 2 based electrolytes a straight‐line in low‐frequency region is observed due to blocking of highly mobile oxygen ions at the sample‐electrode interface . A more pronounced straight‐line in the impedance plots of CGSO may be due to a higher concentration of blocked oxygen ions at the sample‐electrode interfaces of CGSO.…”

“…It is observed from Table that the grain size of Ce 0.85 La 0.10 S 0.05 O 2‐ δ (CLSO) synthesized in this work is one order smaller than the grain size (4.5 μm) of the same composition synthesized in earlier work . The smaller grain size of the samples as compared to values reported in the literature is attributed to lower calcination (600°C) and sintering (1200°C) temperatures fixed for the synthesis of the samples in present work …”

Sr2+-Gd3+ co-doped CeO2: A cost-effective variant for IT-SOFC electrolytes

“…In Fig. 5a, 5S15G showed the lowest bulk as well as grain boundary conductivity which is similar to the reported value at high temperatures [29]. However, at 600 °C, the present value is slightly lower than the reported one, which may be due to different preparation route and/or dissimilar measurement setup.…”

Fabrication of Vertically aligned Copper Nanotubes as a Novel Electrode for Enzymatic Biofuel Cells

“…The fuel is catalytically oxidized at the anode and the oxidant is reduced at the cathode. The simultaneous redox reaction at the electrodes generates electricity [1,2]. Enzymatic biofuel cells (EBFCs) harnesses energy from oxidation of organic compounds using purified enzymes as catalyst [3].…”