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Updated: Jul 28, 2026
Synthesis of Platinum-nickel Nanowires and Optimization for Oxygen Reduction Performance
Published on: April 27, 2018
One-Step Synthesis of a Coral-Like Cobalt Iron Oxyhydroxide Porous Nanoarray: An Efficient Catalyst for Oxygen
Yao Li1, Wenqian Zhang1, Zhicui Song1
1College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610066, P. R. China.
Abstract:
The design of high-efficiency and cost-effective electrocatalysts is one of the most crucial factors for facilitating the oxygen evolution reaction (OER). Therefore, we prepared Cox Fe1-x OOH with coral-like nanonet arrays on carbon cloth (CC) as high-performance OER catalysts by a facile hydrothermal method. The resulting Cox Fe1-x OOH was characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and X-ray photoelectron spectrometry. When serving as a catalyst electrode in the OER, Co0.875 Fe0.125 OOH/CC exhibits excellent catalytic activity. Co0.875 Fe0.125 OOH/CC has a low overpotential of 300 mV at a current density of 20 mA cm-2 (150 mV less than that of FeOOH/CC) and a small Tafel slope of 83 mV dec-1 in 1.0 M KOH in OER. Moreover, it also has a superior electrochemical durability for more than 50 h.
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