Facile synthesis of ZnMn2O4 nanosheets via cathodic electrodeposition: characterization and supercapacitor behavior studies

Barkhordari, Houshang; Heydari, Hamid; Nosrati, Azad; Mohammadi, Jamil

doi:10.1007/s11581-018-2565-8

Cited by 23 publications

(4 citation statements)

References 57 publications

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“…This is reasonable because it was reported that the ZnMn 2 O 4 can be prepared by a cathodic deposition method using a constant current density from an aqueous electrolyte with Zn 2+ and Mn 2+ ions. 66,67 Therefore, during the galvanostatic charging process of the Zn-MnO 2 battery, the precursor of the ZnMn 2 O 4 with low crystallinity would be formed in the cathode as eq 10:…”

Section: Resultsmentioning

confidence: 99%

Functioning Mechanism of the Secondary Aqueous Zn-β-MnO₂ Battery

Hoang

Zhi

et al. 2020

ACS Appl. Mater. Interfaces

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Rechargeable aqueous Zn-MnO 2 batteries are a promising candidate for large-scale energy storage systems due to their outstanding advantages, such as high energy density, high safety, low cost, and environmental friendliness. Considering the controversies surrounding the mechanism of this battery containing a mildly acidic electrolyte, the electrochemical behavior of this type of battery using β-MnO 2 as the cathode is systematically investigated. The results indicate that the reversible intercalation of Zn 2+ ions into MnO 2 is not likely to take place in the aqueous system. We conclude that it is the existence of the water molecule and its participation in the electrochemical reactions, for instance, the reversible insertion of proton into MnO 2 and the electrolysis of water, that makes the mechanism of aqueous Zn-MnO 2 batteries complicated. Besides, the capacity fading of this mildly acidic Zn-MnO 2 battery is assigned to the generation of the inert layer of Zn 4 SO 4 (OH) 6 •nH 2 O and the ZnMn 2 O 4 on the cathode via electrochemical conversion reactions, the dissolution of the active material during discharging, and the release of gases. When Mn 2+ ions are available in the electrolyte, they will be electrodeposited on the cathode during charging, and the kinetics of the electrochemical reactions of the electrode is improved, leading to the higher electrochemical performance of the battery.

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Section: Resultsmentioning

confidence: 99%

Functioning Mechanism of the Secondary Aqueous Zn-β-MnO₂ Battery

Hoang

Zhi

et al. 2020

ACS Appl. Mater. Interfaces

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“…As shown in Figure 5e, higher calculated specific capacitances are obtained for the N/MC/ZM composite electrodes, with 960.6, 827.5, 748.7, 643.4, 566.9, and 488.1 F•g −1 at current densities of 1, 2, 3, 5, 7, and 10 A•g −1 , respectively, compared to those of the MC/ZM electrode (Figure S4b in the Supplementary Materials). The observed specific capacitance of the N/MC/ZM composite was compared to that of ZnMn 2 O 4 based on Table 1, which reveals the superior specific capacitance of the prepared N/MC/ZM composite [31,[42][43][44][45][46]. Also, the prepared N/MC/ZM composite presents a superior capacitive performance in comparison with those of the other reported Mn-and Zn-based electrodes (Table S1 in the Supplementary Materials) [47][48][49][50][51][52].…”

Section: Resultsmentioning

confidence: 89%

Facile Synthesis of Nitrogen-Doped Graphene Quantum Dots/MnCO3/ZnMn2O4 on Ni Foam Composites for High-Performance Supercapacitor Electrodes

Liu,

Kim,

Choi

2024

Materials

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This study reports the facile synthesis of rationally designed composite materials consisting of nitrogen-doped graphene quantum dots (N-GQDs) and MnCO3/ZnMn2O4 (N/MC/ZM) on Ni foam using a simple hydrothermal method to produce high-performance supercapacitor applications. The N/MC/ZM composite was uniformly synthesized on a Ni foam surface with the hierarchical structure of microparticles and nanosheets, and the uniform deposition of N-GQDs on a MC/ZM surface was observed. The incorporation of N-GQDs with MC/ZM provides good conductivity, charge transfer, and electrolyte diffusion for a better electrochemical performance. The N/MC/ZM composite electrode delivered a high specific capacitance of 960.6 F·g−1 at 1 A·g−1, low internal resistance, and remarkable cycling stability over 10,000 charge–discharge cycles. Additionally, an all-flexible solid-state asymmetric supercapacitor (ASC) device was fabricated using the N/MC/ZM composite electrode. The fabricated ASC device produced a maximum energy density of 58.4 Wh·kg−1 at a power density of 800 W·kg−1 and showed a stable capacitive performance while being bent, with good mechanical stability. These results provide a promising and effective strategy for developing supercapacitor electrodes with a high areal capacitance and high energy density.

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“…The FT-IR spectra of CMO and ZMO presented in Figure 1b showing the characteristic metal-oxygen bonds in spinel compounds. Two peaks observed at 3444 (3404) cm -1 and 1628 (1622) cm -1 corresponding to the adsorbed O-H stretching and bending vibration modes of CMO and ZMO, respectively [37]. The other two intense peaks observed at 623 (617), and 506 cm -1 are due to the metal-oxygen (Co-O and Zn-O) bond vibrations in tetrahedral site, and Mn-O bond in octahedral site, respectively [14,22,38].…”

Section: Ft-ir and Raman Spectroscopymentioning

confidence: 99%

“…These meso and macroporous structures are advantageous, as it allows for efficient accommodation of various electrolyte ions (Na + /K + /Li + ), thereby facilitating a rapid charge/discharge process and rate capability [36,44]. The high calcination temperatures generally increases the crystallinity, and electrical conductivity of the sample, however it reduces the specific surface area [37].…”

Section: Bet Analysismentioning

confidence: 99%

Zinc Manganite as an Efficient Battery-grade Material for Supercapattery Devices

Nagaraja,

Rao,

Rao

et al. 2024

Preprint

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In the current context, supercapatteries emerge as highly desirable candidates capable of merging both energy and power density within a single device. Battery-type metal oxide materials, combined with capacitive-based materials, stand out as promising candidates for high-performance supercapatteries. This investigation centers on the synthesis of nanocrystalline ZnMn2O4 (ZMO) and CoMn2O4 (CMO) through a straightforward hydrothermal method, followed by their physico-electrochemical characterization. Electrochemical analysis reveals that ZMO exhibits notably enhanced charge storage capability compared to CMO. This superiority can be attributed to favourable electro-structural properties, and stable redox chemistry of ZMO. The real-time performance of ZnMn2O4 was further assessed by fabricating a hybrid asymmetric supercapattery device (ZnMn2O4||NrGO), which achieves a specific capacity of 232 C g− 1 at a current density of 1 A g− 1. The hybrid asymmetric device underwent rigorous stability testing for 4000 cycles at a current density of 2 A g− 1, showcasing remarkable performance with a 92% retention of its initial capacity. The device demonstrated a power density of 10 kW kg− 1 and an energy density of 22 W h kg− 1, highlighting its considerable promise in the field.

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Facile synthesis of ZnMn2O4 nanosheets via cathodic electrodeposition: characterization and supercapacitor behavior studies

Cited by 23 publications

References 57 publications

Functioning Mechanism of the Secondary Aqueous Zn-β-MnO₂ Battery

Functioning Mechanism of the Secondary Aqueous Zn-β-MnO₂ Battery

Facile Synthesis of Nitrogen-Doped Graphene Quantum Dots/MnCO3/ZnMn2O4 on Ni Foam Composites for High-Performance Supercapacitor Electrodes

Zinc Manganite as an Efficient Battery-grade Material for Supercapattery Devices

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Facile synthesis of ZnMn2O4 nanosheets via cathodic electrodeposition: characterization and supercapacitor behavior studies

Cited by 23 publications

References 57 publications

Functioning Mechanism of the Secondary Aqueous Zn-β-MnO2 Battery

Functioning Mechanism of the Secondary Aqueous Zn-β-MnO2 Battery

Facile Synthesis of Nitrogen-Doped Graphene Quantum Dots/MnCO3/ZnMn2O4 on Ni Foam Composites for High-Performance Supercapacitor Electrodes

Zinc Manganite as an Efficient Battery-grade Material for Supercapattery Devices

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Functioning Mechanism of the Secondary Aqueous Zn-β-MnO₂ Battery

Functioning Mechanism of the Secondary Aqueous Zn-β-MnO₂ Battery