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Exceptional Superionic Conductivity in Disordered Sodium Decahydro-closo-decaborate



Terrence J. Udovic, Motoaki Matsuo, Wan Si NMN Tang, Hui Wu, Vitalie Stavila, Alexei V. Soloninin, Roman V. Skoryunov, Olga A. Babanova, Alexander Skripov, John J. Rush, Atsushi Unemoto, Hitoshi Takamura, Shin-Ichi Orimo


Na2B10h10 undergoes a transition from an ordered monoclinic phase to a disordered, face-centered-cubic phase near 370 K with the emergence of a vacancy-rich, mobile Na+ sublattice exhibiting dramatic superionicity ({approximately equal}0.01 S cm-1 at 383 K). This represents a major advancement for solid-state Na+ fast-ion conduction at lower temperatures.
Advanced Materials


Conductivity, Decahydro-closo-decaborate, Na2B10H10, Order-Disorder Transition, Sodium Conductor, Solid-State Electrolyte, Superionic Conduction, Superionicity, Reorientational Mobility


Udovic, T. , Matsuo, M. , NMN, W. , Wu, H. , Stavila, V. , , A. , , R. , , O. , Skripov, A. , Kasianowicz, J. , Unemoto, A. , Takamura, H. and Orimo, S. (2014), Exceptional Superionic Conductivity in Disordered Sodium Decahydro-closo-decaborate, Advanced Materials, [online], (Accessed May 24, 2024)


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Created October 13, 2014, Updated February 19, 2017