Anisotropic proton conduction realized by a layered vanadium selenite single crystal†
Abstract
The study of anisotropic proton conduction (APC) on a layered-structured vanadium selenite single crystal, namely [H3O][(VO2)3(SeO3)2] (1), reveals the proton conductivity (σ) ratio (σ[100]/σ[001] = 188) at 80 °C under 70% relative humidity (RH) and the proton conduction mechanisms of Grotthuss and Vehicle along the [100] and [001] directions, respectively.