Engineering structure-activity relationships in rhodium-based catalysts for Electrocatalysis

As an essential member in noble-metal family, rhodium (Rh) manifests unique electronic structure and physicochemical properties, and Rh-based materials have been recognized as a family of promising catalysts in sustainable energy applications. In this work, based on the recent progress, we intend to provide a comprehensive understanding on the structure-activity relationships and the engineering strategies of Rh-based catalysts for electrocatalytic reactions, such as hydrogen evolution reaction, oxygen revolution reaction, nitrogen reduction reaction, nitrate reduction reaction, alcohol oxidation reaction, and hydrazine oxidation reaction. Specifically, the regulation of activity of Rh-based catalysts through the engineering of dimensionality, composition, surface, and interface are extensively discussed. With the revealing of the structure-activity relationships in Rh-based catalysts, we expect that this work could provide some insights into the design of high-performance noble-metal-based catalysts and contribute to the practical application of emerging energy technologies with performance-enhanced catalysts.