Interface engineering is an effective strategy for the design of electrochemical catalysts with attractive performance for hydrogen evolution reaction. Herein, the Molybdenum carbide/molybdenum phosphide (MoC/MoP) heterostructure deposited on nitrogen (N), phosphorous (P) co-doped carbon substrate (MoC/MoP-NPC) is fabricated by one-step carbonization. The electronic structure of MoC/MoP-NPC is changed by optimizing the ratio of phytic acid and aniline. The calculation and experimental results also show that there is an electron interaction on the MoC/MoP interface, which optimizes the adsorption free energy of hydrogen (H) and improves the performance of hydrogen evolution reaction. MoC/MoP-NPC exhibits significant low overpotentials at 10 mA·cm current density, 90 mV in 1 M KOH and 110 mV in 0.5 M HSO, respectively. In addition, it shows superior stability over a broad pH range. This research provides an effective method for the construction of novel heterogeneous electrocatalysts and is conducive to the development of green energy.
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| http://dx.doi.org/10.1016/j.jcis.2023.07.012 | DOI Listing |
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