One-Step Growth of Iron–Nickel Bimetallic Nanoparticles on FeNi Alloy Foils: Highly Efficient Advanced Electrodes for the Oxygen Evolution Reaction

Qazi, Umair Yaqub; Yuan, Cheng‐Zong; Ullah, Naseeb; Jiang, Yifan; Imran, Muhammad�; Zeb, Akif; Zhao, Siqi; Javaid, Rahat; Xu, An‐Wu

doi:10.1021/acsami.7b08922

Cited by 123 publications

(85 citation statements)

References 62 publications

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“…The Ni 2p XPS spectrum (Figure b) shows two peaks centered at 852.6 and 855.8 eV, which can be ascribed to metallic Ni and Ni 2+ , respectively . Meanwhile, the peak at 861.6 eV is the satellite peak for Ni 2+ . The binding energies of C 1 s centered at 284.6 and 285.2 eV can be assigned to C−C and C−O bonds, respectively (Figure c) .…”

Section: Figurementioning

confidence: 97%

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A Supramolecular Coordination‐Polymer‐Derived Electrocatalyst for the Oxygen Evolution Reaction

Zhang

Xie

et al. 2018

Chemistry A European J

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Section: Figurementioning

confidence: 97%

“…[15] Meanwhile, the peak at 861.6 eV is the satellite peak for Ni 2 + . [16] The binding (Figure 2c). [11] The O1 Ss pectrum in Figure2dh as two peaks at 531.84 and 530.18 eV,c orresponding to FeÀOH, and FeÀO, respectively.…”

mentioning

confidence: 99%

A Supramolecular Coordination‐Polymer‐Derived Electrocatalyst for the Oxygen Evolution Reaction

Zhang

Xie

et al. 2018

Chemistry A European J

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“…The as‐synthesized NiFeNSC catalyst contained Ni, Fe, C, N, S and O, as shown in Figure S7a. The peaks at 852.8 eV (Ni 2 p 3/2 ) and 870.0 eV (Ni 2 p 1/2 ) of Ni 2 p , shown in Figure b, are related to the metallic state of Ni . The peaks at 855.8 eV (Ni 2 p 3/2 ) and 873.5 eV (Ni 2 p 1/2 ) are related to Ni 2+ .…”

Section: Resultsmentioning

confidence: 95%

“…The peaks at 852.8 eV (Ni 2p 3/2 ) and 870.0 eV (Ni 2p 1/2 ) of Ni 2p, shown in Figure 4b, are related to the metallic state of Ni. [34,35] The peaks at 855.8 eV (Ni 2p 3/2 ) and 873.5 eV (Ni 2p 1/2 ) are related to Ni 2 + . Whereas the peaks at 861.4 and 879.5 eV could be considered as the satellite peak of Ni 2 + .…”

Section: Resultsmentioning

confidence: 99%

Natural‐Cellulose‐Nanofibril‐Tailored NiFe Nanoparticles for Efficient Oxygen Evolution Reaction

Tian

Liu

et al. 2019

ChemElectroChem

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High performance, resource abundance, and environmental friendliness have been raising as major challenges for the next‐generation of affordable and sustainable electrocatalysts. Herein, natural cellulose nanofibrils (CNFs) with abundant carboxyls and hydroxyls were employed to tailor NiFe catalysts (NiFeNSC) for the efficient oxygen evolution reaction (OER). Benefiting from the introduction of CNF, the NiFe metal ions were homogeneously dispersed on the CNF surface and exhibited a smaller particle size. Additionally, the surface area was 3.17 times larger and the surface wettability was significantly improved. By integrating the active NiFe nanoparticles with doped CNF, the overpotential of synthesized NiFeNSC catalyst was decreased from 370 mV to 244 mV to deliver a current density of 10 mA cm−2, and exhibited a small Tafel slope of 43.3 mV dec−1 in 1.0 M KOH electrolyte. Impressively, the NiFeNSC displayed excellent long‐term stability, which was only 38 mV increased over 24 h chronopotentiometry measurement, outperforming the catalyst without CNF (NiFeNS) and commercial RuO2 catalyst remarkably. The present results demonstrate a new avenue for designing resource abundant and sustainable electrocatalysts, providing a novel strategy to replace the fossil‐involved nanocarbon.

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“…[30,31] Furthermore, using conductive support materials (e.g., carbon cloth and Ni foam) as current collectors can greatly improve the reaction kinetics of integrated electrodes. [30,31] Furthermore, using conductive support materials (e.g., carbon cloth and Ni foam) as current collectors can greatly improve the reaction kinetics of integrated electrodes.…”

Section: Introductionmentioning

confidence: 99%

Nickel–Cobalt Diselenide Nanosheets Supported on Copper Nanowire Arrays for Synergistic Electrocatalytic Oxygen Evolution

Chen

Ren

et al. 2019

Adv Materials Inter

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water splitting. [7] So the synthesis of efficient electrocatalysts with high OER kinetics remains a field of great interest. Currently, noble metal (Ru and Ir)-based compounds are the efficient catalysts toward OER with high current density and low overpotential. [8] However, their scarcity and high cost greatly hindered large-scale application. Therefore, developing earth-abundant and cheap catalysts is necessary to improve OER activity and realize electrochemical water splitting. In recent years, metal oxides have been widely studied as earth-abundant catalysts for the OER, but there exist some inherent limitations such as low conductivity and poor catalytic kinetics. [9] Currently, transition metal phosphides and chalcogenides have emerged as highly active catalysts for OER. [10,11] Compared to the corresponding oxide counterparts, their better performances originated from the higher conductivities. Among these catalysts, transition metal selenides have attracted much attention due to their low cost, intrinsic metallic properties, and high activity. [12] Recent studies showed that, in the process of electrocatalysis, the surface of metal selenides can be partially oxidized into metal oxides, which were proved to be the true catalytically active species. The synergistic effects of high conductivity of metal selenide and high catalytically active species (metal oxides) formed on the outer surface of metal selenides provided excellent electrocatalytic activity. [13,14] In transition metal-based OER catalysts, Co-based and Nibased catalysts have exhibited excellent OER property. [15][16][17][18][19] Especially bimetallic Co-Ni-based electrocatalysts have exhibited significantly enhanced OER activity than monometallic Cobased and Ni-based catalysts. [20][21][22][23][24] The enhanced OER activity of bimetallic electrocatalysts mainly came from the flexible variable valence state of bimetallic elements and more active sites which originated from atomic defects. For example, Tüysüz and co-workers reported that the prepared ordered mesoporous nickel cobalt oxide showed greatly improved OER activity compared with single Ni or Co metal oxide electrocatalyst. [25] Meanwhile, nickel-cobalt selenides also exhibited remarkable performance in fields of electrochemical energy production and storage. [26][27][28][29] For example, Xu et al. prepared (Ni, Co)Se 2 Rational nanoarchitecture design and smart hybridization of bespoke catalysts can greatly accelerate the sluggish kinetics of oxygen evolution reaction (OER) in electrochemical water splitting. Here, hierarchical Ni x Co 1−x Se 2 porous nanosheets are synthesized on Cu nanowire arrays (CNW) to fabricate highly efficient core/shell structure integrated OER electrode. Highly conductive CNW arrays are first obtained via the reduction of the pre-prepared CuO nanowire arrays. Ni x Co 1−x precursor nanosheets are then grown on CNW via hydrothermal route, and the following selenylation led to in situ formation of Ni x Co 1−x Se 2 porous nanosheet. In the integrated electrode, ...

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One-Step Growth of Iron–Nickel Bimetallic Nanoparticles on FeNi Alloy Foils: Highly Efficient Advanced Electrodes for the Oxygen Evolution Reaction

Cited by 123 publications

References 62 publications

A Supramolecular Coordination‐Polymer‐Derived Electrocatalyst for the Oxygen Evolution Reaction

A Supramolecular Coordination‐Polymer‐Derived Electrocatalyst for the Oxygen Evolution Reaction

Natural‐Cellulose‐Nanofibril‐Tailored NiFe Nanoparticles for Efficient Oxygen Evolution Reaction

Nickel–Cobalt Diselenide Nanosheets Supported on Copper Nanowire Arrays for Synergistic Electrocatalytic Oxygen Evolution

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