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Facile synthesis of nanometer-sized NiFe layered double hydroxide/nitrogen-doped graphite foam hybrids for enhanced electrocatalytic oxygen evolution reactions |
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| Authors: | Rui Li Jingsong Xu Jingwen Ba Yingru Li Chuanhui Liang Tao Tang |
| Affiliation: | 1. Institute of Materials, China Academy of Engineering Physics, P.O. Box 9071, No. 9 Huafengxincun, Jiangyou 621907, Sichuan, PR China;2. Science and Technology on Surface Physics and Chemistry Laboratory, P.O. Box Nos, 9-35, Huafengxincun, Jiangyou, Sichuan 621908, PR China;3. Center of Interface Dynamics for Sustainability, Institute of Materials, China Academy of Engineering Physics, Chengdu, Sichuan 610200, PR China |
| Abstract: | We report a self-standing NiFe layered double hydroxide/nitrogen doped graphite foam (NiFe LDH/NGF) electrode for the oxygen evolution reaction (OER) prepared via a facile electrodeposition method. The electrode showed high electrocatalytic activity towards OER, exhibiting a low onset overpotential of 0.239 V and a small Tafel slope of 57.9 mV dec?1 in basic electrolytes, as well as a good stability during the long-term cycling test. The outstanding electrocatalytic activity is mainly attributed to the synergy between the abundant catalytically active sites through good dispersion of NiFe LDH across NGF and fluent electron transport arising from NGF. |
| Keywords: | NiFe layered double hydroxide Nitrogen doped graphite foam Electrodeposition Oxygen evolution reaction |
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