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Updated: Jun 27, 2026

Synthesis and Characterization of Fe-doped Aluminosilicate Nanotubes with Enhanced Electron Conductive Properties
Published on: November 15, 2016
Dual B and Fe doping boosts seawater oxidation on a Co3O4 nanoarray
Yuchun Ren1,2, Xinxin Li1, Xiaomei Sun2
1College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, Shandong, China. xpsun@uestc.edu.cn.
Abstract:
Direct seawater electrolysis has attracted intensive interest for the production of green hydrogen; however, the competing chlorine evolution reaction and oxygen evolution reaction lead to anode corrosion and thus limited durability. Here, B,Fe dual doping is proposed as an effective strategy to enhance its activity and the durability of the Co3O4 nanoarray supported on nickel foam (B,Fe-Co3O4/NF) for alkaline seawater oxidation. At an industrial-scale current density of 1000 mA cm-2, the B,Fe-Co3O4/NF only needs an overpotential of 342 mV and operates stably for 500 h with negligible degradation and minimal active chlorine generation. Doping B and Fe synergistically enhances the catalytic activity, while B doping results in the formation of borate anions, which facilitate chloride ion repulsion.
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