Sea urchin-like Ni–Fe sulfide architectures as efficient electrocatalysts for the oxygen evolution reaction

Xuan, Cuijuan; Lei, Wen; Wang, Jie; Zhao, Tonghui; Lai, Chenglong; Zhu, Ye; Sun, Yubao; Wang, Deli

doi:10.1039/c9ta02761k

Cited by 125 publications

(67 citation statements)

References 53 publications

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“…The widely used sulfur and selenium sources for the thermochemical treatment are sulfur and selenium powders. Hierarchical bimetallic NiFeS electrocatalyst was reported by Xuan et al via a hydrothermal sulfurization reaction and a following post‐annealing treatment on NiFe‐based PBA precursors 81. The NiFeS catalyst with a sea urchin‐like morphology shows an ultralow overpotential of 200 mV at 10 mA cm –2 , benefiting from the enhanced electrical conductivity, the complex valence states, the efficient mass transfer, and the exposure of abundant active sites.…”

Section: Classification Of the Non‐noble‐metal‐based Oer Electrocatalmentioning

confidence: 99%

Non‐Noble‐Metal‐Based Electrocatalysts toward the Oxygen Evolution Reaction

Zang

et al. 2020

Adv Funct Materials

934

551

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The development of low-cost, high-efficiency, and robust electrocatalysts for the oxygen evolution reaction (OER) is urgently needed to address the energy crisis. In recent years, non-noble-metal-based OER electrocatalysts have attracted tremendous research attention. Beginning with the introduction of some evaluation criteria for the OER, the current OER electrocatalysts are reviewed, with the classification of metals/alloys, oxides, hydroxides, chalcogenides, phosphides, phosphates/borates, and other compounds, along with their advantages and shortcomings. The current knowledge of the reaction mechanisms and practical applications of the OER is also summarized for developing more efficient OER electrocatalysts. Finally, the current states, challenges, and some perspectives for non-noble-metal-based OER electrocatalysts are discussed.

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Section: Classification Of the Non‐noble‐metal‐based Oer Electrocatalmentioning

confidence: 99%

Non‐Noble‐Metal‐Based Electrocatalysts toward the Oxygen Evolution Reaction

Zang

et al. 2020

Adv Funct Materials

934

551

View full text Add to dashboard Cite

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“…Plenty of studies have been carried out in the development of non‐noble metal OER electrocatalysts with eximious performance, such as transition‐metal hydroxides, oxides, sulfides, nitrides, phosphides, and so on. Among them, Ni‐based compounds have unique electronic structures with incompletely filled d‐orbits which can readily give and take electrons, leading to the superior catalytic activity and thus showing great potential to work as the substitutes for noble metal materials of OER Especially, as a typical representative of transition metal phosphides, Ni 2 P has been extensively investigated due to its strong catalytic activities .…”

Section: Introductionmentioning

confidence: 99%

Vanadium Doped Nickel Phosphide Nanosheets Self‐Assembled Microspheres as a High‐Efficiency Oxygen Evolution Catalyst

Jiang

Miao

et al. 2019

ChemCatChem

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Recently, much attention has been paid to the low-cost, highefficiency and stable non-precious metal catalysts for oxygen evolution reaction (OER). In this work, vanadium (V)-doped nickel phosphide (Ni 2 P) nanosheets self-assembled microspheres supported on nickel foam (Ni 1 V 1 P NSs/NF) were synthesized as a novel OER catalyst by combined processes of hydrothermal method and low-temperature phosphorization. The synthesized Ni 1 V 1 P NSs/NF material shows excellent catalytic activity due to its interconnected three-dimensional (3D) structure and synergistic effect between nickel and vanadium.When used as a catalyst electrode for OER, the synthesized Ni 1 V 1 P NSs/NF exhibits excellent electrocatalytic activity, reaching a current density of 50 mA cm À 2 at the low overpotential of 250 mV in 1.0 M KOH. This material also shows superior electrochemical stability with negligible decay of the activity after continual measurement for 15 h at 50 and 100 mA cm À 2 in 1.0 M KOH, respectively. This work provides a valuable method to synthesize efficient OER catalysts by doping valence-variable metal ions and designing distinctive 3D structure.

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“…For comparison, the η 10 values and Tafel slopes of the most recently reported NiFe‐based sulfides are presented in Table S9. For example, Xuan's group synthesized NiFeS 3:1 ‐160, showing a η 10 of 207 mV along with a Tafel slope of 40 mV dec −1 in 1 M KOH 37 . Li et al synthesized FeCo 2 S 4 NiCo 2 S 4 /Ti nanosheet arrays, displaying a η 10 of 230 mV and a Tafel slope of 65 mV dec −1 in 1 M KOH 38 .…”

Section: Resultsmentioning

confidence: 99%

NiSFeS/N, S co‐doped carbon hybrid: Synergistic effect between NiS and FeS facilitating electrochemical oxygen evolution reaction

Zhao

Yin

et al. 2020

Int J Energy Res

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Summary A series of NiSFeS/N, S co‐doped carbon (NixFeyS/NSC) for electrochemical oxygen evolution reaction (OER) were synthesized by a co‐precipitation method and followed by pyrolysis in N2 atmosphere. NiSFeS hybrid was uniformly integrated with N, S co‐doped carbon in NixFeyS/NSC. NixFeyS/NSC showed high OER catalytic activity, and the optimized Ni60Fe40S/NSC afforded an OER overpotential of ~239 mV to deliver a current density of 10 mA cm−2 and showed a corresponding Tafel slope of ~30.9 mV dec−1 in 1 M KOH. Such OER catalytic activity was not only higher than that of IrO2, but also comparable with that of the most recently reported NiFe‐based sulfides for OER. Further study indicated that hybridizing NiS with FeS resulted in a synergistic effect for OER. The hybridization increased total amount of sulfides as active species, therefore enhancing the OER catalytic activity. In addition, the hybridization benefited the formation of petal‐like morphologies that contributing much to higher electrochemically active surface area (ECSA), and also boosted the content of graphitic and N, S co‐doped carbon that improving charge transfer efficiency.

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Sea urchin-like Ni–Fe sulfide architectures as efficient electrocatalysts for the oxygen evolution reaction

Abstract: Nickel–iron sulfides with a sea urchin-like architecture are controllably synthesized and exhibit enhanced OER activities.

Cited by 125 publications

References 53 publications

Non‐Noble‐Metal‐Based Electrocatalysts toward the Oxygen Evolution Reaction

Non‐Noble‐Metal‐Based Electrocatalysts toward the Oxygen Evolution Reaction

Vanadium Doped Nickel Phosphide Nanosheets Self‐Assembled Microspheres as a High‐Efficiency Oxygen Evolution Catalyst

NiSFeS/N, S co‐doped carbon hybrid: Synergistic effect between NiS and FeS facilitating electrochemical oxygen evolution reaction

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