Correction: Bukhari et al. The La⁺³-, Nd⁺³-, Bi⁺³-Doped Ceria as Mixed Conductor Materials for Conventional and Single-Component Solid Oxide Fuel Cells. Energies 2023, 16, 5308

Text Correction

In the original publication [1], the values of the band gap are incorrect. A correction has been made to Section 3.3, paragraph number 2. The corrected paragraph is as follows:

The Tauc plots are shown in Figure 7. Previously, the direct bandgap of pure CeO₂ was found to be 2.69 eV [34]. Moreover, the band gap of La₂Ce₂O₇ was found to be 2.1 eV. This means that it shows the red shift with respect to pure ceria. Nd₂Ce₂O₇ showed a band gap of 2.4 eV. Bi₂Ce₂O₇ showed a band gap of 3.4 eV, which was tilted towards the blue shift. By introducing different dopants in the ceria, the bandgap energies of La₂Ce₂O₇ and Nd₂Ce₂O₇ were decreased compared to the ceria. This may be due to the creation of oxygen vacancies in the ceria lattice. On the other hand, Bi₂Ce₂O₇ showed an increase in band energy with respect to the ceria. This means no significant oxygen vacancies were created.

Error in Figure

In the original publication [1], there was a mistake in Figure 7. The extrapolated linear fits extend below the x-axis rather than intersecting it at y = 0, which is incorrect. The corrected Figure 7 appears below.

The authors state that the scientific conclusions are unaffected. This correction was approved by the Academic Editor. The original publication has also been updated.