Cover Feature: Functionalized Ultrafine Rhodium Nanoparticles on Graphene Aerogels for the Hydrogen Evolution Reaction (ChemElectroChem 10/2021)

The Cover Feature illustrates the three dimensional porous architecture ([email protected]/GA) of graphene aerogel nanocomposites modified by polyamine (PA) and ultrafine rhodium nanoparticles (Rh-uNPs). Thanks to the ultrafine size of Rh uNPs and the enrichment concentration of the reactants by free amine groups at PA molecules on the surface of [email protected]/GA nanocomposites, the molecular weight-optimized [email protected]/GA nanocomposites with 10 % Rh mass reveal outstanding hydrogen evolution reaction activity in a wide pH range. More information can be found in the Aricle by K.-W. Cao et al.