Recent Advances in the Controlled Synthesis and Catalytic Applications of Two-Dimensional Rhodium Nanomaterials

Because of the distinct electronic structures and stable chemical properties, rhodium materials are one of the most important noble metal catalysts for various kinds of industrial chemical processes. Recently, two-dimensional (2D) rhodium nanomaterials have emerged as excellent catalysts for many essential chemical reactions, such as hydrogen evolution, oxygen evolution, alcohol oxidation, carbon monoxide oxidation, hydrogen generation, and organic reactions. In this Review, we give an overview of recent advances in the controlled synthesis and catalytic applications of 2D rhodium nanomaterials. We first introduce the typical synthetic methods of 2D rhodium nanomaterials, together with the underlying mechanisms. Then, the catalytic applications of 2D rhodium nanomaterials in representative chemical reactions are systematically described. Finally, we summarize the recent research progress and provide some personal perspectives on critical challenges and future research opportunities in this emerging research direction.