Dual-ligand modulation approach for improving supercapacitive performance of hierarchical zinc–nickel–iron phosphide nanosheet-based electrode

Baasanjav, Erdenebayar; Bandyopadhyay, Parthasarathi; Saeed, Ghuzanfar; Lim, Sooman; Jeong, Sang Mun

doi:10.1016/j.jiec.2021.04.034

Cited by 23 publications

(10 citation statements)

References 49 publications

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“…As the mechanism occurs at the electrode, the structure, quality, and nature of the electrode engage in a vital role for better supercapacitor performance . Therefore, different varieties of electrode materials like metal/metal oxides, , layered doubled hydroxides, , MXenes, , metal–organic frameworks (MOFs), − MXene and MOF composites, transition metal dichalcogenide, polymers, composites of transition metal oxides with 3D graphene materials or porous carbon nanofibers, − and composite of metal oxides/sulfides/phosphides/nitrides/selenides − have been recently designed to achieve high-density supercapacitors.…”

Section: Introductionmentioning

confidence: 99%

Ligand-Controlled Growth of Different Morphological Bimetallic Metal–Organic Frameworks for Enhanced Charge-Storage Performance and Quasi-Solid-State Hybrid Supercapacitors

Sahoo

Jeong

2023

ACS Appl. Mater. Interfaces

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The present research work facilitates a ligand-mediated effective strategy to achieve different morphological surface structures of bimetallic (Ni and Co) metal–organic frameworks (MOFs) by utilizing different types of organic ligands like terephthalic acid (BDC), 2-methylimidazole (2-Melm), and trimesic acid (BTC). Different morphological structures, rectangular-like nanosheets, petal-like nanosheets, and nanosheet-assembled flower-like spheres (NSFS) of NiCo MOFs, are confirmed from the structural characterization for ligands BDC, 2-Melm, and BTC, respectively. The basic characterization studies like scanning electron microscopy, X-ray diffraction, transmission electron microscopy, and Brunauer–Emmett–Teller revealed that the NiCo MOF prepared by using trimesic acid as the ligand (NiCo MOF_BTC) with a long organic linker exhibits a three-dimensional architecture of NSFS that possesses higher surface area and pore dimensions, which enables better ion kinetics. Also, the NiCo MOF_BTC delivered the highest capacity of 1471.4 C g–1 (and 408 mA h g–1) at 1 A g–1 current density, compared to the other prepared NiCo MOFs and already reported different NiCo MOF structures. High interaction of trimesic acid with the metal ions confirmed from ultraviolet–visible spectroscopy and X-ray photoelectron spectroscopy leads to a NSFS structure of NiCo MOF_BTC. For practical application, an asymmetric supercapacitor device (NiCo MOF_BTC//AC) is fabricated by taking NiCo MOF_BTC and activated carbon as the positive and negative electrode, respectively, where the PVA + KOH gel electrolyte serves as a separator as well as an electrolyte. The device delivered an outstanding energy density of 78.1 Wh kg–1 at a power density of 750 W kg–1 in an operating potential window of 1.5 V. In addition, it displays a long cycle life of 5000 cycles with only 12% decay of the initial specific capacitance. Therefore, these findings manifest the morphology control of MOFs by using different ligands and the mechanism behind the different morphologies that will provide an effective way to synthesize differently structured MOF materials for future energy-storage applications.

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Section: Introductionmentioning

confidence: 99%

Ligand-Controlled Growth of Different Morphological Bimetallic Metal–Organic Frameworks for Enhanced Charge-Storage Performance and Quasi-Solid-State Hybrid Supercapacitors

Sahoo

Jeong

2023

ACS Appl. Mater. Interfaces

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“…In addition, the presence of Mo(IV) (confirmed by XPS) and sulfide content improves the electrical conductivity of the hybrid material. The detailed electrochemical redox reactions of the Zn-Ni LDH@NiMoS x electrode can be expressed by following equations: ,,,, Zn ions enhance the interaction between electro-active sites and reactants during the electrochemical redox reactions. , Furthermore, the Zn in the LDH component and MoS x do not exhibit any Faradaic redox reaction; however, they can allow insertion/deinsertion of the K + ion by forming a double layer at the electrode/electrolyte junction.…”

Section: Resultsmentioning

confidence: 99%

Section: ■ Results and Discussionmentioning

confidence: 99%

“…The plot shows that I p is linearly related with regard to ν 1/2 for different scan rates (5 to 40 mV s −1 ) and nicely matches with the power-law relationship (I p = aν b with b = 0.5), signifying a diffusion-controlled Faradaic reaction process. 47,48 Figure 6d depicts the galvanostatic charge−discharge (GCD) plots measured for the Zn-Ni LDH@NiMoS x electrode over the voltage window of 0−0.45 V at various current densities. The plots display potential plateaus (battery-type behavior), suggesting prominent pseudocapacitive characteristics.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

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Cathode of Zn-Ni Layered Double Hydroxide Nanosheet Arrays Wrapped with a Porous NiMoS_x Shell and Anode of 3D Hierarchical Nitrogen-Doped Carbon for High-Performance Asymmetric Supercapacitors

Lee

Bandyopadhyay

Jin

et al. 2021

ACS Appl. Energy Mater.

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The rational design and synthesis of multicomponent core@shell structures with fine morphology is a promising approach to develop electrode materials for advanced supercapacitors. In this study, Zn-Ni LDH@NiMoS x nanosheets with a hierarchical heterostructure are grown in situ on nickel foam through the hydrothermal routes, for the potential use as an integrated positive electrode material. The Zn-Ni LDH@NiMoS x shows a unique morphology and mesoporous feature with excellent synergistic effects between individual components. Compared to the single components of Zn-Ni LDH and NiMoS x , the Zn-Ni LDH@NiMoS x nanosheet arrays show better specific capacity (357.88 mA h g–1 at a current of 5 mA cm–2) and rate performance. Meanwhile, ZIF-8 derived 3D nanoporous N-doped carbon (ZPNC) material is used as an negative electrode material with high surface area (918.3 m2 g–1), excellent capacity (52.42 mA h g–1 at 2 mA cm–2), and rate performance (∼55% at 50 mA cm–2). The asymmetric supercapacitor device based on Zn-Ni LDH@NiMoS x and ZPNC electrodes exhibits a specific capacity of 73.18 mA h g–1 at 3.5 mA cm–2 and an excellent cycle lifespan of 90% after 6000 cycles. The device also demonstrates excellent energy density (58.54 W h kg–1) and very high power density (7397.34 W kg–1).

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“…Based on the Scherrer equation [25], the average diameter of active material can be estimated as ~3.6 nm. In addition, there is a diffraction peak at ~26.0°, which is corresponding to the (002) crystal plane of CNTs (JCPDS, 65-6212) [32,33]. Fig.…”

Section: Electrochemical Characterizationsmentioning

confidence: 99%

Colloidal synthesis of flower-like Zn doped Ni(OH)2@CNTs at room-temperature for hybrid supercapacitor with high rate capability and energy density

Ren

Gan

Sun

et al. 2022

Electrochimica Acta

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Dual-ligand modulation approach for improving supercapacitive performance of hierarchical zinc–nickel–iron phosphide nanosheet-based electrode

Cited by 23 publications

References 49 publications

Ligand-Controlled Growth of Different Morphological Bimetallic Metal–Organic Frameworks for Enhanced Charge-Storage Performance and Quasi-Solid-State Hybrid Supercapacitors

Ligand-Controlled Growth of Different Morphological Bimetallic Metal–Organic Frameworks for Enhanced Charge-Storage Performance and Quasi-Solid-State Hybrid Supercapacitors

Cathode of Zn-Ni Layered Double Hydroxide Nanosheet Arrays Wrapped with a Porous NiMoS_x Shell and Anode of 3D Hierarchical Nitrogen-Doped Carbon for High-Performance Asymmetric Supercapacitors

Colloidal synthesis of flower-like Zn doped Ni(OH)2@CNTs at room-temperature for hybrid supercapacitor with high rate capability and energy density

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Dual-ligand modulation approach for improving supercapacitive performance of hierarchical zinc–nickel–iron phosphide nanosheet-based electrode

Cited by 23 publications

References 49 publications

Ligand-Controlled Growth of Different Morphological Bimetallic Metal–Organic Frameworks for Enhanced Charge-Storage Performance and Quasi-Solid-State Hybrid Supercapacitors

Ligand-Controlled Growth of Different Morphological Bimetallic Metal–Organic Frameworks for Enhanced Charge-Storage Performance and Quasi-Solid-State Hybrid Supercapacitors

Cathode of Zn-Ni Layered Double Hydroxide Nanosheet Arrays Wrapped with a Porous NiMoSx Shell and Anode of 3D Hierarchical Nitrogen-Doped Carbon for High-Performance Asymmetric Supercapacitors

Colloidal synthesis of flower-like Zn doped Ni(OH)2@CNTs at room-temperature for hybrid supercapacitor with high rate capability and energy density

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Cathode of Zn-Ni Layered Double Hydroxide Nanosheet Arrays Wrapped with a Porous NiMoS_x Shell and Anode of 3D Hierarchical Nitrogen-Doped Carbon for High-Performance Asymmetric Supercapacitors