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Ni/NiFe2O4 Nanorods Encapsulated in Onion-like N-Doped Carbon Nanolayers as Efficient Oxygen Evolution Electrocatalyst |
Author Name | Affiliation | E-mail | LIU Guang | Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization, Research Institute of Special Chemicals, Taiyuan University of Technology, Taiyuan 030024, China | | YAO Rui | Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization, Research Institute of Special Chemicals, Taiyuan University of Technology, Taiyuan 030024, China | | ZHAO Yong | Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization, Research Institute of Special Chemicals, Taiyuan University of Technology, Taiyuan 030024, China | | WANG Mu-Heng | Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization, Research Institute of Special Chemicals, Taiyuan University of Technology, Taiyuan 030024, China | | LI Na Li | Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization, Research Institute of Special Chemicals, Taiyuan University of Technology, Taiyuan 030024, China | | Jin-Ping | Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization, Research Institute of Special Chemicals, Taiyuan University of Technology, Taiyuan 030024, China | jpli211@hotmail.com |
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Abstract: Ni/NiFe2O4 nanorods encapsulated in onion-like N-doped carbon (ONC) nanolayers was prepared by the pyrolysis of NiFe-based coordination polymer precursor under N2 atmosphere. Compared with Ni@ONC, NiFe2O4, and commercial RuO2 electrocatalysts, benefiting by the promoted electronic conductivity and enlarged electrochemical surface area (0.149 mF) from synergistic effects between the ONC nanolayers and encapsulated Ni/NiFe2O4 heterostructure, the as-prepared Ni/NiFe2O4@ONC hybrid nanorod exhibits extraordinary electrocatalytic activity towards oxygen evolution reaction (OER) with an overpotential of~299 mV at 10 mA·cm-2 and a Tafel slope of 73 mV·dec-1. |
Keywords: water splitting oxygen evolution catalysts N-doped onion-like carbon nickel-iron oxides mesoporous heterostructure |
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LIU Guang,YAO Rui,ZHAO Yong,WANG Mu-Heng,LI Na Li,Jin-Ping.Ni/NiFe2O4 Nanorods Encapsulated in Onion-like N-Doped Carbon Nanolayers as Efficient Oxygen Evolution Electrocatalyst[J].Chinese Journal of Inorganic Chemistry,2018,34(8):1494-1500. |
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