FeOOH/Co/FeOOH Hybrid Nanotube Arrays as High‐Performance Electrocatalysts for the Oxygen Evolution Reaction |
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| Authors: | Jin‐Xian Feng Han Xu Yu‐Tao Dong Sheng‐Hua Ye Ye‐Xiang Tong Prof Gao‐Ren Li |
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| Institution: | MOE Laboratory of Bioinorganic and Synthetic Chemistry, KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou, China |
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| Abstract: | Herein, we developed FeOOH/Co/FeOOH hybrid nanotube arrays (HNTAs) supported on Ni foams for oxygen evolution reaction (OER). The inner Co metal cores serve as highly conductive layers to provide reliable electronic transmission, and can overcome the poor electrical conductivity of FeOOH efficiently. DFT calculations demonstrate the strong electronic interactions between Co and FeOOH in the FeOOH/Co/FeOOH HNTAs, and the hybrid structure can lower the energy barriers of intermediates and thus promote the catalytic reactions. The FeOOH/Co/FeOOH HNTAs exhibit high electrocatalytic performance for OER, such as low onset potential, small Tafel slope, and excellent long‐term durability, and they are promising electrocatalysts for OER in alkaline solution. |
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| Keywords: | electrocatalysts FeOOH hybrid nanotubes oxygen evolution reaction |
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