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Published on: July 3, 2025
Oriented arrays of Co3O4 nanoneedles for highly efficient electrocatalytic water oxidation
Jun-Jun Zhang1, Tian-Jian Zhao1, Hong-Hui Wang1
1School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China. xinhaoli@sjtu.edu.cn zdjiang@sjtu.edu.cn.
Abstract:
We described an effective way to generate a Co3O4 mesocrystal array with well-developed porosity, simply by uniting a coupled interface with hydrazine treatment. Due to the fast electron transfer and sufficient active sites, the Ti mesh-supported Co3O4 nanoneedles electrode could provide a current density of 49.9 mA cm-2 at 570 mV OER overpotential and has exceptionally high stability.
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