Structural and catalytic properties of ceria layers doped with transition metals for SOFCs fueled by biogas

Doped Ceria Nanomaterials: Preparation, Properties, and Uses

“…In another work, Mn-, Fe-, Co-, Ni-, and Cu-doped ceria were prepared by the reverse microemulsion method and then tested as catalysts in a fuel cell. 59 60 The temperatures at which 50% of the toluene was converted were 267, 217, 231, 242, and 254 °C for undoped and Cu-, Mn-, Zn-, and Fe-doped ceria, respectively. In contrast, for Ni and Co-doped ceria, 50% conversion of toluene was observed at temperatures as high as 274 and 326 °C, respectively, which is poor compared to that for pure ceria.…”

“…Hence, only moderate conversion of ethane (39.7%) and selectivity toward ethylene (45.6%) were achieved. In another work, Mn-, Fe-, Co-, Ni-, and Cu-doped ceria were prepared by the reverse microemulsion method and then tested as catalysts in a fuel cell . SEM revealed different grain sizes for the different dopants, with the largest grain observed for Cu while Ni has the smallest.…”

“…The application of Fe-doped ceria in pseudocapacitors has been investigated by Lee and co-workers who found that Fe-doped ceria exhibited excellent cycling stability and a high specific capacitance of 559 F/g, while the undoped ceria gave ∼121 F/g at 1 A/g . Mn-, Fe-, Co-, Ni-, and Cu-doped ceria have also been tested as catalysts in fuel cells . The photoreduction of CO 2 by Y-, La-, and Mo-doped ceria was carried out by Wang and co-workers, and the results revealed that the Y-doped ceria had the best performance producing 22 ppm of CO gas in the first hour, followed by Mo-doped ceria with 8 ppm of CO generated in the first 3 h …”

“…71 Mn-, Fe-, Co-, Ni-, and Cu-doped ceria have also been tested as catalysts in fuel cells. 59 The photoreduction of CO 2 by Y-, La-, and Mo-doped ceria was carried out by Wang and co-workers, and the results revealed that the Y-doped ceria had the best performance producing 22 ppm of CO gas in the first hour, followed by Modoped ceria with 8 ppm of CO generated in the first 3 h. 12 4.4. Heterogeneous Catalysis.…”

Achieving performance and longevity with butane-operated low-temperature solid oxide fuel cells using low-cost Cu and CeO2 catalysts

“…53 However, most of these studies were performed under hightemperature conditions, from 750 to 900 C, and with methane as the fuel. [54][55][56][57] In this work, Cu and CeO 2 were incorporated into two different regions of a TF-SOFC to achieve both high performance and durability of the ISRB-SOFC. Cu was sputterdeposited at the AFL via sandwich-like placement between the NiO-YSZ composite layers.…”