Anion Reorientations and Cation Diffusion in Nanostructured Closo-Borates: NMR and Quasielastic Neutron Scattering Studies

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发表日期：

2024年3月1日

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A. V. Skripov,
O. A. Babanova,
R. V. Skoryunov,
A. V. Soloninin

摘要

Abstract

The dynamical properties of sodium closo-borate NaCB₁₁H₁₂ embedded into SiO₂-based nanoporous scaffolds have been studied by nuclear magnetic resonance (NMR) and quasielastic neutron scattering (QENS) over wide temperature ranges. It has been found that a confinement of the closo-borate in nanopores suppresses the order-disorder phase transition, retaining the orientationally disordered phase with high reorientational mobility of the anions and high diffusive mobility of the cations down to low temperatures. This paper is based on the presentation at the RNIKS-2023 conference.