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Materials Engineering

Preparation and high-efficiency hydrogen evolution performance of iron-boron-based sponge catalytic electrode

  • Qiuyu XU Chenfeng WANG Lincai WANG Chenglong ZHANG Weiju HAO
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  • 1. Shanghai Collaborative Innovation Centre for WEEE Recycling, Shanghai Second Polytechnic University, Shanghai 201209, China 2. College of Science, University of Shanghai for Science and Technology, Shanghai 200093, China 3. Department of Material Science, Fudan University, Shanghai 200433, China

Received date: 2019-07-05

  Revised date: 2019-09-27

  Online published: 2020-05-18

Abstract

Developing a high efficiency, stability and low cost catalytic electrode is of great practical significance to reduce the overpotential of hydrogen evolution. For this reason, NiB@Fe–B/PU catalytic electrode on non-conductive base material polyurethane sponge (PU) was prepared by a mild electroless plating method in this work. NiB@Fe–Co–B/PU, NiB@Fe–Mo–B/PU catalytic electrode were successfully prepared by doping a small amount of the third element, such as cobalt, molybdenum and other metal elements to improve its hydrogen evolution performance in neutral electrolyte solution. The results showed that the performance of NiB@Fe–B/PU catalytic electrode had significant improvement by doping of cobalt and molybdenum, and the performance of doping cobalt was better. The overpotential was only 161 mV(current density, j=50 mA/cm2) and the Tafel slope was 68.24 mV/dec for NiB@Fe–Co–B/PU catalytic electrode to hydrogen evolution reaction (HER) in 0.5 mol/L phosphate buffered saline (PBS). At the same time, the electrode showed good stability, which can work stably for more than 24 h under the overpotential of 61 mV.

Cite this article

Qiuyu XU Chenfeng WANG Lincai WANG Chenglong ZHANG Weiju HAO . Preparation and high-efficiency hydrogen evolution performance of iron-boron-based sponge catalytic electrode[J]. The Chinese Journal of Process Engineering, 2020 , 20(5) : 599 -608 . DOI: 10.12034/j.issn.1009-606X.219250

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