Ni C N Nanosheets as Catalyst for Hydrogen Evolution Reaction.
We report a facile nitrogenation/exfoliation process to prepare hybrid Ni C N nanosheets. These nanosheets are <2 nm thin, chemically stable, and metallically conductive. They serve as a robust catalyst for the hydrogen evolution reaction in 0.5 M H2SO4, or 1.0 M KOH or 1.0 M PBS (pH 7) For example, they catalyze the hydrogen evolution reaction in 0.5 M H2SO4 at an onset potential of 34.7 mV, an overpotential of 60.9 mV (at j 10 mA cm 2) and with remarkable long term stability ~10% current drop after 70 h testing period) They are promising as a non Pt catalyst for practical hydrogen evolution reaction.
Journal of the American Chemical Society