Ternary Fe x Co 1– x P Nanowire Array as a Robust Hydrogen Evolution Reaction Electrocatalyst with Pt-like Activity: Experimental and Theoretical Insight

Replacement of precious Pt with earth-abundant electrocatalysts for the hydrogen evolution reaction (HER) holds great promise for clean energy devices, but the development of low-cost and durable HER catalysts with Pt-like activity is still a huge challenge. In this communication, we report on the development of self-standing ternary FexCo1–xP nanowire array on carbon cloth (FexCo1–xP/CC) as a Pt-free HER catalyst with activities being strongly related to Fe substitution ratio. Electrochemical tests show that Fe0.5Co0.5P/CC not only possesses Pt-like activity with the need of overpotential of only 37 mV to drive 10 mA cm–2, outperforming all non-noble-metal HER catalysts reported to date, but demonstrates…

• NN
  National Natural Science Foundation of China

  Award: 21575137
• PG
  People's Government of Jilin Province
• CN
  Changchun Normal University