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Ce0.8Y0.2O2–δ (YDC) was infiltrated into a BaCo0.7Fe0.2Nb0.1O3–δ (BCFN) cathode of intermediate temperature sold oxide full cells (IT‐SOFCs) in order to decrease its cathodic polarization resistance. BCFN and YDC infiltrated BCFN electrodes were fabricated on dense Ce0.8Gd0.2O2–δ (GDC) thin pellets to form symmetrical cells. The electrochemical impedance spectra of the symmetrical cells were investigated...
A 70 wt.% Sm0.5Sr0.5CoO3 – 30 wt.% Sm0.2Ce0.8O1.9 (SSC–SDC73) composite cathode was co‐synthesized by a facile one‐step sol–gel method, which showed lower polarization resistance and overpotential than those of physically mixed SSC–SDC73 cathode. The polarization resistance of co‐synthesized SSC–SDC73 cathode at 800 °C was as low as 0.03 Ω cm2 in air. Scanning electron microscopy (SEM) images showed...
Carbon‐encapsulated cobalt‐tungsten carbides (CoWC@C) were synthesized by reduction and carbonization method and used as the electrocatalyst for oxygen reduction reaction (ORR) in direct methanol fuel cells. The as‐prepared samples were characterized by transmission electron microscope, X‐ray diffraction, and X‐ray photoelectron spectroscopy. The results show that CoWC@C consists of outer layer carbon...
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