Novel catalytic properties of quadruple perovskites

ABSTRACT

Quadruple perovskite oxides AA′₃B₄O₁₂ demonstrate a rich variety of structural and electronic properties. A large number of constituent elements for A/A′/B-site cations can be introduced using the ultra-high-pressure synthesis method. Development of novel functional materials consisting of earth-abundant elements plays a crucial role in current materials science. In this paper, functional properties, especially oxygen reaction catalysis, for quadruple perovskite oxides CaCu₃Fe₄O₁₂ and AMn₇O₁₂ (A = Ca, La) composed of earth-abundant elements are reviewed.

KEYWORDS:

• Quadruple perovskite
• catalysis
• high-pressure synthesis

Classification:

• 50 Energy Materials
• 206 Energy conversion / transport / storage / recovery
• 207 Fuel cells / batteries / super capacitators
• 504 X-ray / Neutron diffraction and scattering
• 107 Glass and ceramic materials
• 205 Catalyst / photocatalyst / photosynthesis