![]() Evolution of magnetic behavior in oxygen deficient LaMnO3− δ. Highly active, nonprecious metal perovskite electrocatalysts for bifunctional metal–air battery electrodes. Beyond condensed matter physics on the nanoscale: The role of ionic and electrochemical phenomena in the physical functionalities of oxide materials. Pseudocapacitive contributions to electrochemical energy storage in TiO2 (anatase) nanoparticles. ![]() Oxygen rocking aqueous batteries utilizing reversible topotactic oxygen insertion/extraction in iron-based perovskite oxides Ca1− xLa xFeO3− δ. Hibino, M., Kimura, T., Suga, Y., Kudo, T. Design principles for oxygen-reduction activity on perovskite oxide catalysts for fuel cells and metal–air batteries. A perovskite oxide optimized for oxygen evolution catalysis from molecular orbital principles. Strontium ruthenate perovskite as the active material for supercapacitors. Perovskite Oxide for Solid Oxide Fuel Cells (Springer, 2009). Something from nothing: Enhancing electrochemical charge storage with cation vacancies. Ordered mesoporous α-MoO3 with iso-oriented nanocrystalline walls for thin-film pseudocapacitors. High-rate electrochemical energy storage through Li + intercalation pseudocapacitance. in Modern Aspects of Electrochemistry Vol. Underpotential deposition at single crystal surfaces of Au, Pt, Ag and other materials. Ni(OH)2 nanoplates grown on graphene as advanced electrochemical pseudocapacitor materials. Wang, H., Sanchez Casalongue, H., Liang, Y. High pseudocapacitance of MnO2 nanoparticles in graphitic disordered mesoporous carbon at high scan rates. A new charge storage mechanism for electrochemical capacitors. Nanostructured materials for advanced energy conversion and storage devices. S., Bruce, P., Scrosati, B., Tarascon, J. Electrochemical supercapacitors (Kluwer–Academic, 1999).Īrico, A. ![]() Whereas previous pseudocapacitor and rechargeable battery charge storage studies have focused on cation intercalation, the anion-based mechanism presented here offers a new paradigm for electrochemical energy storage.Ĭonway, B. This is the first example of anion-based intercalation pseudocapacitance as well as the first time oxygen intercalation has been exploited for fast energy storage. Herein we investigate the mechanism of oxygen-vacancy-mediated redox pseudocapacitance for a nanostructured lanthanum-based perovskite, LaMnO 3. Despite oxygen ion mobility and vacancies having been shown to play an important role in catalysis, their role in charge storage has yet to be explored. Amongst these unique properties is the structural stability of the cation array in perovskites that can accommodate mobile oxygen ions under electrical polarization. Perovskite oxides have attracted significant attention as energy conversion materials for metal–air battery and solid-oxide fuel-cell electrodes owing to their unique physical and electronic properties.
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