Na+-induced in situ reconstitution of metal phosphate enabling efficient electrochemical water oxidation in neutral and alkaline media
作者： Wanpeng Zhao , Chunlei Peng , Zhaoyu Kuang , Qingming Zhang , Yi Xue
DOI: 10.1016/J.CEJ.2020.125537
关键词: Metal 、 Chemical engineering 、 Oxygen evolution 、 Phosphate 、 Electrocatalyst 、 In situ 、 Chemistry 、 Crystallinity 、 Electrochemistry 、 Catalysis
摘要: Abstract Exploring highly activity and stable electrocatalysts for oxygen evolution reaction (OER) is of vital importance sustainable energy conversion processes. Herein, a facile strategy developed to synthesize Ni-doped CoOOH nanosheets with poor crystallinity 3D mesh structure, which in situ derived from the Na+-induced spontaneous reconstitution polymetallic phosphate precursors during OER process. The resulted Ni-CoOOH/NF large number active sites exhibits efficient catalytic outperforming commercial RuO2 catalysts, indicated by low overpotentials only 265 410 mV at current density 10 mA cm−2 alkaline neutral media, respectively. This opens up new way design synthesis electrocatalysis towards various systems.
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