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Citation: Hao-Ying ZHAI, Zi-Li ZOU, Ming-Yu LI, Li-Yuan ZHANG, Wen-Jun ZHOU. Synthesis of boron and phosphorus co-doped Fe-Co bimetallic materials for electrocatalytic oxygen evolution[J]. Chinese Journal of Inorganic Chemistry, ;2023, 39(4): 627-636. doi: 10.11862/CJIC.2023.044 shu

Synthesis of boron and phosphorus co-doped Fe-Co bimetallic materials for electrocatalytic oxygen evolution

  • Special Agricultural Resources in Tuojiang River Basin Sharing and Service Platform of Sichuan Province, Key Laboratory of Fruit Waste Treatment and Resource Recycling of Sichuan Provincial College, College of Chemistry and Chemical Engineering, Neijiang Normal University, Neijiang, Sichuan 641100, China

  • Corresponding author: Wen-Jun ZHOU, zhwj84@126.com
  • Received Date: 17 August 2022
    Revised Date: 16 March 2023

Figures(5)

  • Boron and phosphorus co-doped Fe-Co (Fe-Co-B-P) materials were successfully synthesized by one-step hydrothermal method.The morphology, structure, and composition of the synthesized materials were characterized by scanning electron microscope (SEM), X-ray diffraction (XRD), X-ray photoelectron spectrometer (XPS), and Fourier transform infrared spectroscopy (FT-IR).The electrochemical oxygen evolution reaction (OER) properties of the materials were studied by linear sweep voltammetry (LSV), cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS) techniques.The results showed that the loose rough surface of as-synthesized Fe-Co-B-P had many voids among particles, which can expose abundant active sites and improve the OER electrocatalytic activity.The overpotential of Fe-Co-B-P was 278 and 309 mV under the current density of 10 and 100 mA·cm-2, respectively.And the Fe-Co-B-P electrocatalyst possessed favorable reaction kinetics with a low Tafel slope of 24 mV·dec-1 and facilitated charge transfer, indicating that Fe-Co-B-P had better OER electrocatalytic performance.Moreover, the potential was basically maintained at 1.55 V (vs RHE) after 10 h chronopotentiometric test, suggesting that the catalyst had good electrochemical stability.This is due to the synergistic effect between Fe-Co bimetal and B-P-nonmetal to promote electron transfer.
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