Preview: Forthcoming article in Acta Crystallographica Section B: Structural Science
Forthcoming article in Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials
Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials publishes scientific articles related to the structural science of compounds and materials in the widest sense. Knowledge of the arrangements of atoms, including their
(Na,□)5[MnO2]13 Nanorods: a New Tunnel Structure for Electrode Materials Determined Ab-initio and Refined through a Combination of Electron and Synchrotron Diffraction Data
Octahedral molecular sieves (OMS) attract increasing interest in the search for novel electrode materials for energy storage and water desalination. While a nanometric particle size is desirable for such applications, this makes ordinary single crystal characterization difficult and many OMS structures are still waiting for elucidation. Here, we present the long awaited structure of a well-known material, (Na,□)5[MnO2]13, resolved by a combination of Electron Diffraction Tomography, dynamical scattering theory and X-ray powder Rietveld refinement. A new type of tunnel structure was found, able to explain previously reported electrochemical properties. This structure also suggests a possible mechanism for topotactic transformations between different manganese oxide OMS frameworks.