Plasma-modified iron-doped Ni3S2 nanosheet arrays as efficient electrocatalysts for hydrogen evolution reaction

Shen, Yongjun; Chen, Yin; Fang, Shuaikang; Park, Jae Kwang; Feng, Kun

doi:10.1016/j.arabjc.2022.104317

Cited by 4 publications

(1 citation statement)

References 69 publications

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“…The electrochemically active surface area (ECSA) was assessed to confirm the assumption that CoNi NSFs + x% Se (x = 0.15) has a significant impact on the improved performance of HER. The ECSA can be extracted from double-layer capacitance (C dl ) 53 by measuring the CVs from 20 to 120 mV/s scan rates (Figures 8d and S1), and calculating the C dl value is shown in Figure 8e. The ECSA plots for all catalysts are depicted in Figure 8f.…”

Section: ■ Experimental Sectionmentioning

confidence: 99%

Se-Doped Magnetic Co–Ni Spinel Ferrite Nanoparticles as Electrochemical Catalysts for Hydrogen Evolution

Mohamed

Çalışkan

Gondal

et al. 2023

ACS Appl. Nano Mater.

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The magnetic Co 0.5 Ni 0.5 Fe 2 O 4 spinel ferrites (NSFs) with various (x%) Se (x = 0.00−0.20) were synthesized via the sol−gel combustion route in conjunction with an advanced green laser ablation method. The structure and morphology of NSFs were explored through various physicochemical techniques. Interestingly, Se doping has a crucial impact on NSFs' magnetic properties. While, at room temperature, the pristine sample exhibits a superparamagnetic-like behavior, the pristine sample and all doped CoNi NSFs + x% Se (x = 0.05−0.20) samples exhibited a high value of coercivity and remanence at 10 K, indicating their hard magnetic properties. Our findings indicate that Se can be harnessed to tune the magnetic properties of CoNiFe 2 O 4 structures. In addition, improving effective electrocatalysts for hydrogen evolution reaction (HER) efficiency through water splitting is also vital to overcoming the impending energy crisis due to the rapid depletion of fossil fuels and their injurious impact on the environment. Hence, the optimized ideal catalysts CoNi NSFs + x% Se (x = 0.15) were developed, which outperformed as electrocatalysts for HER with a Tafel slope of 91 mV/dec and a very low overpotential of 173.5 mV at a current density of 10 mA/ cm 2 , which could be attributed to a large number of electrochemically active surface area (5.2 cm 2 ), accelerated electron mobility at the electrocatalysts/electrolyte interface, and long-term stability.

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Section: ■ Experimental Sectionmentioning

confidence: 99%

Se-Doped Magnetic Co–Ni Spinel Ferrite Nanoparticles as Electrochemical Catalysts for Hydrogen Evolution

Mohamed

Çalışkan

Gondal

et al. 2023

ACS Appl. Nano Mater.

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Ultrafast Electrodeposition of Durable NiFe Catalysts for Efficient Hydrogen Evolution Reaction

Qin,

Bai,

Cao

et al. 2025

ChemistrySelect

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Finding noble‐metal‐free hydrogen evolution reaction (HER) catalysts with facile synthesis and efficient performance is essential to carry out electrochemical overall water splitting for hydrogen energy development. An ultrafast electrodeposition technique for the synthesis of NiFe catalysts is developed. The rapid synthesis of NiFe catalysts with nanoparticle film morphology was achieved by uniformly anchoring particles onto three‐dimensional nickel foam (NF) via one‐step constant‐current electrodeposition in 30 s. The catalyst exhibited excellent HER electrocatalytic activity and stability in 1.0 M KOH solution. To attain a current density of 10 mA·cm−2, the hydrogen evolution reaction displayed favorable kinetics with an overpotential of 168 mV and a Tafel slope of 168.5 mV·dec−1. Continuous stability tests of the NiFe/NF electrode were conducted for up to 23 h at a current density of 10·mA·cm−2. The overpotential exhibited a decrease of merely 2 mV, exhibiting outstanding durability.

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Nickel–manganese sulfide on nickel foam toward highly efficient and stable potassium periodate activation for organic pollutant degradation

Yao,

Wang,

et al. 2024

Chemical Engineering Science

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Plasma-modified iron-doped Ni3S2 nanosheet arrays as efficient electrocatalysts for hydrogen evolution reaction

Cited by 4 publications

References 69 publications

Se-Doped Magnetic Co–Ni Spinel Ferrite Nanoparticles as Electrochemical Catalysts for Hydrogen Evolution

Se-Doped Magnetic Co–Ni Spinel Ferrite Nanoparticles as Electrochemical Catalysts for Hydrogen Evolution

Ultrafast Electrodeposition of Durable NiFe Catalysts for Efficient Hydrogen Evolution Reaction

Nickel–manganese sulfide on nickel foam toward highly efficient and stable potassium periodate activation for organic pollutant degradation

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