Perovskite Based Anode Materials for Solid Oxide Fuel Cell Application: A Review

Visualization of the structural transformation of NiO/YSZ/BZY nanocomposite particles using in situ gas environmental transmission electron microscopy

“…E-mail: liu-z@aist.go.jp applications. [24][25][26][27] In SOFCs, charge transfers occur at the triple phase boundary (TPB), which corresponds to the interfaces formed between the electrode (an electronic conductor), electrolyte (an ionic conductor), and gas phase within the NiO/YSZ systems. The TPB serves as a critical region where electrochemical reactions occur, facilitating the efficient conversion of chemical energy into electrical energy.…”

“…In the development of new anode materials, NiO and Y 2 O 3 stabilized ZrO 2 (NiO/YSZ) remains the most selected material owing to their high ionic and electronic conductivities, potent catalytic activity for the hydrogen oxidation reaction, and robust stability that is suitable for high-temperature SOFC applications. 24–27 In SOFCs, charge transfers occur at the triple phase boundary (TPB), which corresponds to the interfaces formed between the electrode (an electronic conductor), electrolyte (an ionic conductor), and gas phase within the NiO/YSZ systems. The TPB serves as a critical region where electrochemical reactions occur, facilitating the efficient conversion of chemical energy into electrical energy.…”

Rechargeable Oxide Ion Batteries Based on Mixed Conducting Oxide Electrodes

“…Mixed ionic electronic conducting (MIEC) perovskite‐type oxides are studied extensively as electrode materials in solid oxide fuel cells (SOFCs) or solid oxide electrolysis cells (SOECs) and as oxygen permeation membranes. [ 1–10 ] Among others, (La,Sr)MnO 3−δ (LSM), [ 11–14 ] (La,Sr)(Co,Fe)O 3−δ (LSCF), [ 15–39 ] and (Ba,Sr)(Co,Fe)O 3−δ (BSCF) [ 40–45 ] are under investigation. Particularly for LSCF and BSCF, the ability to conduct both ions and electrons allows incorporation or evolution of oxygen at the entire electrode surface, rather than only at the triple phase boundary, and thus facilitates higher current densities of the respective electrodes in fuel or electrolysis cells.…”

Enhanced anodic catalytic performance in PrFeO3−δ of perovskite materials via Co-doping with Sr and VB subgroup metals (V, Nb, Ta)

“…32,33 Since the perovskite cathode materials, perovskite system anode has become a research hotspot with constantly being explored. [34][35][36][37][38][39][40][41][42] Cr-based perovskite is well regarded for reducing the gas electrode and maintaining excellent stability. [43][44][45] In particular, Fe-based perovskite has attracted extraordinary inquiry interest recently.…”