Crown ether as a bifunctional booster in electrochemical water splitting

Chen, Yanan; Min, Luofu; Zhang, Wen; Xu, Li; Wang, Yuxin

doi:10.1016/j.ijhydene.2023.07.354

Cited by 2 publications

(1 citation statement)

References 49 publications

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“…Hydrogen energy is a great choice to replace fossil energy because of its advantages of being green, clean, renewable, and easy to transport [1][2][3][4][5]. Among the many ways to produce hydrogen, alkaline electrolytic water is a promising method because of its lower cost and extended stability [6][7][8][9][10]. There are two electrocatalytic reactions, the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER).…”

Section: Introductionmentioning

confidence: 99%

In-Site Growth of Efficient NiFeOOH/NiFe-LDH Electrodes: A Streamlined One-Step Methodology

Ning,

Xu,

et al. 2024

Chemistry

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Oxygen evolution reactions (OER) are often the decisive step in determining the water electrolysis rate. The first row of transition metals and their derivatives, represented by Ni and Fe, have attracted much attention due to their excellent OER performance. Here, we develop a one-step strategy for preparing oxygen-evolving electrodes, in which the NiFeOOH-modified NiFe layered double hydroxide (NiFe-LDH) nanosheet is supported by nickel foam. At 100 mA·cm−2, the overpotential of NiFeOOH-NiFe-LDH was just 227 mV, and the duration times were over 200 h in 1 mol·L−1 KOH. Furthermore, the co-existence of LDH and hydroxyl oxides helps the oxygen evolution reaction. These results suggest the potential for this synthesis strategy to provide a low-cost, highly active OER electrocatalyst for industrial water splitting.

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