Perovskite oxide composites for bifunctional oxygen electrocatalytic activity and zinc-air battery application- a mini-review

Advanced design strategies for Fe-based metal–organic framework-derived electrocatalysts toward high-performance Zn–air batteries

“…155 The numerous oxidation states, long-term stability, and low cost of Fe-based oxides make them highly promising electrocatalysts. 156 The large number of dangling bonds and unsaturated electronic states on the surface of Fe-based sulfides promote electron transfer and can regulate the adsorption state. 11,19 The outstanding OER activity of Fe-based phosphides gives them certain advantages in the construction of bifunctional catalysts.…”

Characterization and Performance of Sr and Co Doped Fe2O3–LaFeO3 Quaternary Perovskite Composite Oxides for Efficient Realization of CH4 Chemical Looping Conversion

“…Perovskite composite oxides exhibit a wide range of application value in many fields due to better stability and higher transfer properties of O 2– and electrons. − The combination of perovskite and oxygen carrier can not only increase the transfer rate of oxygen ions in the oxygen carrier but also prevent from sintering of the oxygen carrier, which is conducive to maintain the structural integrity. − At present, the synthesis method is mainly concentrated on the sol–gel method, the solid-phase method, the hydrothermal synthesis, and so forth . However, the crystal characteristics of perovskites synthesized via the above methods are undesirable and difficult to regulate.…”

Highly efficient bifunctional nanofiber catalysts with 3D hierarchical nanostructures as building blocks for rechargeable Zn–air batteries

“…5–7 These batteries encompass the ORR and OER at the oxygen electrode in discharging and charging, respectively. 8 The multi-electron reaction process and sluggish kinetics of these reactions result in high overpotentials and low energy efficiency, severely limiting the practical application of RZABs. 9 Note that to date, noble metal catalysts, such as Pt/C and IrO 2 /RuO 2 , are highly efficient for the ORR and OER, but their high cost, low reserves, and single functionality severely restrict their widespread applications in RZABs.…”