Facile synthesis of nanoflower-like phosphorus-doped Ni3S2/CoFe2O4 arrays on nickel foam as a superior electrocatalyst for efficient oxygen evolution reaction
| Autor: | Lu Zhang, Jiu-Ju Feng, Ru-Lan Zhang, Ai-Jun Wang, Jiao-Jiao Duan, Qian-Li Zhang |
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| Rok vydání: | 2021 |
| Předmět: |
Tafel equation
Materials science Oxygen evolution chemistry.chemical_element 02 engineering and technology Overpotential Nanoflower 010402 general chemistry 021001 nanoscience & nanotechnology Electrocatalyst 01 natural sciences 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials Catalysis Biomaterials Nickel Colloid and Surface Chemistry chemistry Chemical engineering Water splitting 0210 nano-technology |
| Zdroj: | Journal of Colloid and Interface Science. 581:774-782 |
| ISSN: | 0021-9797 |
| DOI: | 10.1016/j.jcis.2020.08.005 |
| Popis: | Developing cost-effectiveness and superior electrocatalysts is crucial to improve the efficiency of oxygen evolution reaction (OER) in water splitting system. Hence, flower-like phosphorus doped Ni3S2/CoFe2O4 arrays (P-Ni3S2/CoFe2O4/NF) were generated on three-dimensional (3D) nickel foam (NF) via the two-step hydrothermal treatment and subsequent phosphorization. Additionally, a series of control experiments were conducted to investigate the formation mechanism. By virtue of the unique 3D configurations and multi-compositions, the as-prepared catalyst exhibited greatly improved OER performance in 1.0 M KOH solution, with the overpotential of only 254 mV at 50 mA cm−2 and low Tafel slope of 54.43 mV dec−1. This study provides a feasible approach for preparing advanced electrocatalyst in energy conversion and storage devices. |
| Databáze: | OpenAIRE |
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