Bi-doped La1.5Sr0.5Ni0.5Mn0.5O4+δ as an efficient air electrode material for SOEC

Enhanced CO2 electrolysis with in situ exsolved nanoparticles in the perovskite cathode

“…29,38,41,42 The LSTM-Fe 0.1 electrode also exhibited the most excellent electrochemical performance, with a current efficiency of 97.1% and a CO 2 yield of 5.3 mL min À1 cm À2 at 850 1C and 1.6 V, which was significantly superior to that of the pure LST cathode. 19,43 Fig. 4…”

Materials of solid oxide electrolysis cells for H 2O and CO 2 electrolysis: A review

“…In addition, like Co-based perovskite oxides, high Co-containing RP oxides also face the issue of rapid degradation [106]. Some other RP oxides like La 1.5−x Bi x Sr 0.5 Ni 0.5 Mn 0.5 O 4+δ [107], [110], Nd 0.8 Sr 1.2 CoO 4+δ [111], and La 2 NiO 4+δ [112], as shown in Table 1, are also regarded as promising candidates for the air electrodes in SOECs. Further development of the RP air electrodes and basic research into the mechanism of O 2− transportation are required.…”

Advances and challenges in symmetrical solid oxide electrolysis cells: materials development and resource utilization

“…While partially replacing La with Sr failed to yield significant performance improvements, doping Mn at the B site in La 1.5 Sr 0.5 Ni 1Àx Mn x O 4+d led to increased oxygen vacancy and decreased polarization resistance, according to Zheng et al 43,44 Other elements like Cu and Bi have also been successfully doped at the B site. [45][46][47] Pr 2 NiO 4+d is another commonly used RP perovskite due to its high anion diffusion and conductivity that rivals La 2 NiO 4+d . However, despite its higher electrochemical performance, Pr 2 NiO 4+d is less stable.…”

“…43,44 Other elements like Cu and Bi have also been successfully doped at the B site. 45–47 Pr 2 NiO 4+ δ is another commonly used RP perovskite due to its high anion diffusion and conductivity that rivals La 2 NiO 4+ δ . However, despite its higher electrochemical performance, Pr 2 NiO 4+ δ is less stable.…”