Figure 5: Reaction mechanisms of disordered and ordered Na2RuO3.
From: Intermediate honeycomb ordering to trigger oxygen redox chemistry in layered battery electrode
Schematic representation of the structural changes during charge–discharge for disordered Na2RuO3 and ordered Na2RuO3. Ordered Na2RuO3 can distort cooperatively to raise the energy level of the antibonding σ* orbital of the O–O bond, leading to the oxygen redox reaction. Disordered Na1RuO3 cannot accommodate the RuO6 distortion due to strain frustration, which prevents the oxygen redox reaction.
