MOFs derived FeNi3 nanoparticles decorated hollow N-doped carbon rod for high-performance oxygen evolution reaction
Autor: | Wenshuai Zhu, Lin Wang, Bin Wang, Chongtai Wang, Gaopeng Liu, Wenxian Wei, Jiexiang Xia, Yu Quan, Huaming Li |
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Rok vydání: | 2022 |
Předmět: |
Tafel equation
Materials science Renewable Energy Sustainability and the Environment Oxygen evolution Nanoparticle 02 engineering and technology Overpotential 010402 general chemistry 021001 nanoscience & nanotechnology Electrocatalyst Electrochemistry 01 natural sciences 0104 chemical sciences Bimetal Anode Chemical engineering 0210 nano-technology |
Zdroj: | Green Energy & Environment. 7:423-431 |
ISSN: | 2468-0257 |
Popis: | The sluggish electrochemical oxygen evolution reaction (OER) is a crucial process for clean energy conversion technology. The preparation of non-precious electrocatalysts with high performance for OER is still a main challenge. Herein, we report a FeNi3 nanoparticles incorporated on N-doped hollow carbon rod with extraordinary performance toward OER by in situ annealing the Ni-doped Fe based metal–organic frameworks (MOFs) precursors. Meanwhile, the pristine N atoms of MOFs doped into carbon frameworks can enhance the electrical conductivity, boost electron mass transport and electron transfer, and construct more active sites. Furthermore, constructing the Fe–Ni alloy structure can facilitate the formation of O–O bond, optimize the free energy for intermediate adsorption and improve OER performance. The as-prepared Fe–Ni bimetal decorated hollow N-doped nanocarbon hybrid structure possesses superior OER performance, which is surpass commercial IrO2 at a overpotential of only 340 mV to achieve the current density of 10 mA cm−2, as well as a small Tafel slope of 86.67 mV dec−1 in alkaline electrolyte. The Fe–Ni alloy/hollow N-doped nanocarbon hybrid structure shining the bright future for obtaining earth-abundant and superior efficient anode OER electrocatalyst. |
Databáze: | OpenAIRE |
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