Rhodium nanocrystals on porous graphdiyne for electrocatalytic hydrogen evolution from saline water.

ABSTRACT: The realization of the efficient hydrogen conversion with large current densities at low overpotentials represents the development trend of this field. Here we report the atomic active sites tailoring through a facile synthetic method to yield well-defined Rhodium nanocrystals in aqueous solution using formic acid as the reducing agent and graphdiyne as the stabilizing support. High-resolution high-angle annular dark-field scanning-transmission electron microscopy images show the high-density atomic steps on the faces of hexahedral Rh nanocrystals. Experimental results reveal the formation of stable sp-C~Rh bonds can stabilize Rh nanocrystals and further improve charge transfer ability in the system. Experimental and density functional theory calculation results solidly demonstrate the exp

SUBMITTER: Gao Y 

PROVIDER: S-EPMC9445080 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature