Electrocatalytic activity and stability enhancement via preferential deposition of phosphide on carbide
Regmi, Y. N., A. Roy, G. A. Goenaga, J. R. McBride, B. R. Rogers, T. A. Zawodzinski, N. Labbe, and S. C. Chmely.  2017.  ChemCatChem.

Phosphides and carbides are among the most promising family of materials based on earth-abundant elements for renewable energy conversion and storage using technologies such as electrochemical water splitting, batteries, and capacitors. Nickel phosphide and molybdenum carbide in particular have been extensively investigated for electrochemical water splitting. However, a composite of the two compounds has not been explored. Here, we demonstrate selective deposition of nickel phosphide on molybdenum carbide in the presence of carbon using a hydrothermal synthesis method. We employ the hydrogen evolution reaction in acid and base to analyze the catalytic activity of phosphide deposited carbide. The composite material also shows superior electrochemical stability in comparison to unsupported phosphide. We anticipate that the enhanced electrochemical activity and stability of carbide deposited phosphide will stimulate investigations into the preparation of other carbide-phosphide composite materials.