Enhanced electrochemical performance of graphitic carbon-wrapped spherical FeOF nanoparticles using maleopimaric acid as a cathode material for sodium-ion batteries

Maulana, Achmad Yanuar; Song, Jungwook; Lee, Da Won; Kim, Jongsik

doi:10.1016/j.jmst.2021.01.023

Cited by 13 publications

(4 citation statements)

References 51 publications

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“…Initially, the key precursor is formed through a solvothermal reaction, followed by calcination in ambient air to yield the final product, o ( x ) -FeFFIVE-1-Ni. During calcination, the synthesized two-dimensional FeFFIVE-1-Ni nanosheets eliminate internal water molecules and create metal-unsaturated ligand sites. , Simultaneously, oxygen from the ambient air replaces a portion of the Fe-coordinated F during calcination, inducing the formation of lattice defects that enhance catalytic activity. , Due to the strong coordinating ability of F, some of the volatile F also coordinates with Ni ions within the structure . The material’s catalytic activity is further enhanced by the synergistic effects generated by the two different phases and the exposure of many active sites resulting from the volatilization of specific organic ligands .…”

Section: Resultsmentioning

confidence: 99%

Air-Calcined Fe/Ni-Based Metal–Organic Framework Nanosheets for Oxygen Evolution Reactions

Zhang,

Xiao,

Feng

et al. 2024

ACS Appl. Nano Mater.

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The oxygen evolution reaction (OER) plays a pivotal role in the hydrolysis process of zinc−air batteries. Consequently, it is essential to develop cathode catalysts with both cost-effectiveness and high oxygen evolution activity. In this study, we synthesized the FeFFIVE-1-Ni two-dimensional (2D) metal− organic framework (MOF) nanosheets via a straightforward solvothermal approach and oxidized them in an air atmosphere. During the calcination process in an air atmosphere, the heteroatoms (O, F) within the FeFFIVE-1-Ni 2D MOF nanosheets combine with iron and nickel metal ions, forming FeOF and NiF 2 compounds. The synergy between these compounds and the creation of surface cracks during calcination yield catalytic active power and catalytic active sites essential for the oxygen evolution reaction. Notably, the overpotential of FeFFIVE-1-Ni 2D MOF nanosheets calcined in air under alkaline test conditions (η 10 = 286 mV) was lower than that of commercial RuO 2 catalysts (η 10 = 355 mV). This work presents an effective strategy for replacing noble metal catalysts such as RuO 2 by simply treating fluorinated metal−organic frameworks.

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Section: Resultsmentioning

confidence: 99%

Air-Calcined Fe/Ni-Based Metal–Organic Framework Nanosheets for Oxygen Evolution Reactions

Zhang,

Xiao,

Feng

et al. 2024

ACS Appl. Nano Mater.

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“…Raman spectra shown in Figure 2b were carried out to understand the graphitization degree of the NC and HSNC samples. Both the NC and HSNC samples exhibited two broad peaks at 1350 and 1587 cm −1 that corresponded to the D and G bands, respectively [29]. The D band refers to the presence of defects and disorder in the carbon structure (sp 3 ), while the G band is identified as graphitic carbon structures (sp 2 ) [30].…”

Section: Resultsmentioning

confidence: 99%

Enhanced Electrochemical Performances of Hollow-Structured N-Doped Carbon Derived from a Zeolitic Imidazole Framework (ZIF-8) Coated by Polydopamine as an Anode for Lithium-Ion Batteries

et al. 2021

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Doping heteroatoms such as nitrogen (N) and boron (B) into the framework of carbon materials is one of the most efficient methods to improve the electrical performance of carbon-based electrodes. In this study, N-doped carbon has been facilely synthesized using a ZIF-8/polydopamine precursor. The polyhedral structure of ZIF-8 and the effective surface-coating capability of dopamine enabled the formation of N-doped carbon with a hollow structure. The ZIF-8 polyhedron served as a sacrificial template for hollow structures, and dopamine participated as a donor of the nitrogen element. When compared to ZIF-8-derived carbon, the HSNC electrode showed an improved reversible capacity of approximately 1398 mAh·g−1 after 100 cycles, with excellent cycling retention at a voltage range of 0.01 to 3.0 V using a current density of 0.1 A·g−1.

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“…FeOF nanoparticles intimately wrapped with graphitic carbon using acids like abietic acid showed better electrochemical properties to those of the bare FeOF thanks to the intimate contact between the FeOF particles and the conductive graphitic carbon (GC) matrix. TEM studies of this composite, used in NIB configuration show positive effects on SEI formation and on volume change …”

Section: Fluoride Materials For Positive Electrodesmentioning

confidence: 94%

“…TEM studies of this composite, used in NIB configuration show positive effects on SEI formation and on volume change. 144 A hierarchical structure composite made of FeOF and TiO 2 heteronanostructures distributed in a 3D porous CNT network was done for a high-mass-loading fluoride cathode. This "sponge" structuration gives a high areal capacity of 1.74 mAh cm −2 at a mass loading up to 8.7 mg cm −2 , far more than classic fluorides materials studied (<2.5 mg cm −2 ), and with TiO 2 helping with the electronically conduction upon lithiation, this synergy gave remarkable results (170 mAh g −1 after 300 cycles).…”

Section: D Fluorinated Materialsmentioning

confidence: 99%

Fluorinated Materials as Positive Electrodes for Li- and Na-Ion Batteries

et al. 2022

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Fluorine is known to be a key element for various components of batteries since current electrolytes rely on Li-ion salts having fluorinated ions and electrode binders are mainly based on fluorinated polymers. Metal fluorides or mixed anion metal fluorides (mainly oxyfluorides) have also gained a substantial interest as active materials for the electrode redox reactions. In this review, metal fluorides for cathodes are considered; they are listed according to the dimensionality of the metal fluoride subnetwork. The synthesis conditions and the crystal structures are described; the electrochemical properties are briefly indicated, and the nature of the electron transport agent is noted. We stress the crucial importance of the elaboration processes to induce the presence of cation disorders, of anion substitutions (mainly F–/O2– or F–/OH–) or vacancies. Finally, we show that an accurate structural characterization is a key step to enable enhanced material performances to overcome several lasting roadblocks, namely the large irreversible capacity and poor energy efficiency that are frequently encountered.

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Enhanced electrochemical performance of graphitic carbon-wrapped spherical FeOF nanoparticles using maleopimaric acid as a cathode material for sodium-ion batteries

Cited by 13 publications

References 51 publications

Air-Calcined Fe/Ni-Based Metal–Organic Framework Nanosheets for Oxygen Evolution Reactions

Air-Calcined Fe/Ni-Based Metal–Organic Framework Nanosheets for Oxygen Evolution Reactions

Enhanced Electrochemical Performances of Hollow-Structured N-Doped Carbon Derived from a Zeolitic Imidazole Framework (ZIF-8) Coated by Polydopamine as an Anode for Lithium-Ion Batteries

Fluorinated Materials as Positive Electrodes for Li- and Na-Ion Batteries

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