Ultrathin two-dimensional metallic nanocrystals for renewable energy electrocatalysis

Even since the discovery of exfoliated graphene, exponentially growing efforts have been devoted to the search of novel 2 dimensional (2D) nanomaterials with atomic thickness and the extension of their applications. Among the huge 2D materials family, ultrathin 2D metallic nanocrystals gain vast attention due to the unique importance of transition metals to heterogeneous catalysis. Here, we review recent representative advances in ultrathin 2D...