Synthesis of FeP2/C nanohybrids and their performance for hydrogen evolution reaction

Phosphorous-rich FeP2/C nanohybrids are synthesized via the pyrolysis of ferrocene (Fe(C5H5)(2)) and red phosphorus in an evacuated and sealed quartz tube at 500 degrees C. The nanohybrids contain orthorhombic FeP2 with conical carbon tubes. Based on the calculated electroactive surface area, the performance of the FeP2/C nanohybrids as a novel non-noble metal electrocatalyst for hydrogen evolution reaction (HER) in 0.50 M H2SO4 is investigated. These nanohybrids show good catalytic activity and stability in the acidic medium and might serve as a promising new class of non-noble metal catalysts for practical HER.