Citation: GAO Xu-Sheng, LIU Guang, SHI Qin-Fang, WANG Kai-Fang, XU Li-Juan, HE Dong-Ying, LI Jin-Ping. Porous Cobalt-Iron Binary Metal Oxides Nanorods as Efficient Oxygen Evolving Catalysts for Water Splitting[J]. Chinese Journal of Inorganic Chemistry, ;2017, 33(4): 623-629. doi: 10.11862/CJIC.2017.080 shu

Porous Cobalt-Iron Binary Metal Oxides Nanorods as Efficient Oxygen Evolving Catalysts for Water Splitting

Research Institute of Fine Chemicals, Tai Yuan University of Technology, Taiyuan 030024, China

Corresponding author: LI Jin-Ping, jpli211@hotmail.com
Received Date: 14 November 2016
Revised Date: 6 January 2017

Figures(8)

A series of porous Co_1-xFe_xO_y(0 ≤ x ≤ 1) nanorods were fabricated by a simple thermal decomposed of CoFe-NTA precursors and were served as oxygen evolving catalysts for water electrolysis in 1 mol·L^-1 KOH solution. It was found that different Fe doping amounts have dramatically effects on the structure and electrocatalytic water oxidation activities and the 16%(n/n) Fe-doping sample exhibited the most excellent oxygen evolving activity. A lowered overpotential of 345 mV was achieved at a current density of 10 mA·cm^-2 with a Tafel slope of 54 mV·dec^-1 for the 16% Fe-doping sample, which suggest that it can be applied as low cost and efficient oxygen catalyst for water splitting.
- water splitting,
- oxygen evolving reaction,
- cobalt-iron metal oxides,
- nanorods
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