1. NiFeP nanosheets for efficient and durable hydrazine-assisted electrolytic hydrogen production.
- Author
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Hou, Jinxing, Mei, Kaifeng, Jiang, Tongtong, Yu, Xinxin, and Wu, Mingzai
- Subjects
HYDROGEN production ,HYDROGEN evolution reactions ,SUSTAINABILITY ,NANOSTRUCTURED materials ,CATALYTIC activity - Abstract
Hydrazine-assisted electrochemical water splitting is an important avenue toward low cost and sustainable hydrogen production, which can significantly reduce the voltage of electrochemical water splitting. Herein, we took a simple approach to fabricate NiFeP nanosheet arrays on nickel foam (NiFeP/NF), which exhibit superior electrocatalytic activity for the hydrogen evolution reaction (HER) and the hydrazine oxidation reaction (HzOR). Our investigations revealed that the excellent electrocatalytic activity of NiFeP/NF mainly arises from the bimetallic synergistic effect, abundant electrocatalytically active sites facilitated by the porous nanosheet morphology, high intrinsic conductivity of NiFeP/NF and strong NiFeP–NF adhesion. We assembled a hydrazine-boosted electrochemical water splitting cell using NiFeP/NF as a bifunctional catalyst for both electrodes, and the overall hydrazine splitting (OHzS) exhibits a considerably low overpotential (100 mV at 10 mA cm
−2 ), and is stable for 40 h continuous electrolysis in a 1 M KOH + 0.5 M N2 H4 electrolyte. When it is applied to hydrogen production by seawater electrolysis, its catalytic activity shows strong tolerance. This work provides a promising approach for low cost, high-efficiency and stable hydrogen production based on hydrazine-assisted electrolytic seawater splitting for future applications. [ABSTRACT FROM AUTHOR]- Published
- 2024
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