Realizing Stable Transition Metal (111) Metallene by Introducing a Non-metallic Framework to Construct 2D Janus TMB2X (X = O and S) Nanostructures and Investigating Their Hydrogen Evolution Catalytic Performance

Through first-principles structure search calculations, we have discovered a series of hitherto unknown two-dimensional (2D) Janus TMB 2 O nanomaterials featuring a single atomic layer of Group VIII TM-metallene as one exposed...