Forms of degradation of the environmental pollutant sulphamethoxazole have been studied over the years, and one form of degradation in heterogeneous photocatalysis. In this work a study was carried out to elaborate a ...

The effect of Sr2+ substitution for Ba2+ on the crystal chemistry, oxygen content, thermal expansion, electrical conductivity, and catalytic activity for oxygen reduction reaction (ORR) of the double perovskite oxides Gd ...

The electrode reaction of the perovskite phases Sr1-xLaxCo0.8Fe0.2O 3-δ (x = 0.1 and 0.6) on Ce0.9Gd0.1O1.95 has been investigated by impedance spectroscopy in the temperature range 600 ≤ T ≤ 800 °C. Thick porous electrodes ...

The electrochemical response of Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF) electrodes prepared by an acetic acid-based gel route has been investigated by impedance spectroscopy (IS) as a function of temperature (400 ≤ T ≤ 900 °C) and ...

Single-phase GdCo1-xCuxO3-δ (x = 0, 0.15, 0.30) perovskites were prepared by ultrasonic-assisted spray pyrolysis, at a reactor temperature of 950 °C. The starting aqueous solutions containing stoichiometric amounts of ...

Three different cathode configurations using porous layers of La0.4Ba0.6CoO3-d (LBC), LBCGDC composite in a 1:1 weight ratio, and GDC were prepared and tested by impedance spectroscopy measurements on symmetrical cells. ...