Electrosynthesis and characterization of nanostructured MnO2 deposited on stainless steel electrode: a comparative study with commercial EMD

Moulaï, Fatsah; Cherchour, N.; Messaoudi, Bouzid; Zerroual, L.

doi:10.1007/s11581-016-1842-7

Cited by 12 publications

(3 citation statements)

References 56 publications

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“…3, the adsorption/desorption isotherms are identified as type II, which is characteristic of Fig. 2 a SEM image of as-prepared EMD material, b the higher magnification SEM image of as-prepared EMD material mesoporous materials [18][19][20]. It can be known from the inset of Fig.…”

Section: Resultsmentioning

confidence: 89%

“…The shapes of charge-discharge curves are analogous. The discharge capacity of EMD [20] cathode still delivers 166 mAh g −1 at the 100th cycle. The capacity retention ratio is 99% compared with 2nd cycle (167 mAh g −1 ), exhibiting the excellent cycle stability.…”

Section: Resultsmentioning

confidence: 98%

“…3 that the pore size is centered at 10 nm with a narrow distribution. Mesoporous structure is beneficial for the migration of Li + and transfer of electron, and corresponds to the superior electrochemical performance of the MnO 2 samples [19,20]. In a word, mesoporous structure and high specific surface area can further improve the electrochemical performance of the EMD.…”

Section: Resultsmentioning

confidence: 99%

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Excellent cyclic performance of electrolytic MnO2 in Li/MnO2 rechargeable batteries

et al. 2019

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The electrolytic MnO 2 particles with α•γ-MnO 2 is successfully prepared using one-step acid constant current electrodeposition method. Scanning electron microscope, N 2 adsorption/desorption method and X-ray diffraction are employed for the material characterization. Scanning electron microscope result shows that the diameter of MnO 2 particle is about 350-500 nm. A lot of mesoporous exist in the as-prepared MnO 2 particles, which exhibit high specific surface area and can provide significantly more electrochemical active sites for the redox reaction. The as-prepared MnO 2 particles as cathode in rechargeable Li/MnO 2 battery displays high discharge capacity of 202 mAh g −1 in the 1st cycle at a current density of 46 mA g −1 , and its discharge capacity retention ratio can achieve 82% over 100 cycles. The discharge capacities of the 100th cycle are 152, 127 and 114 mAh g −1 at different current densities of 151, 350 and 755 mA g −1 , respectively, indicating excellent rate capability. The promising electrochemical performance of α•γ-MnO 2 can make researchers focus again on using metal oxide as the cathode materials in the rechargeable Li-ion batteries.

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Section: Resultsmentioning

confidence: 89%

Section: Resultsmentioning

confidence: 98%

Section: Resultsmentioning

confidence: 99%

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Excellent cyclic performance of electrolytic MnO2 in Li/MnO2 rechargeable batteries

et al. 2019

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Electrochemical Deposition of Manganese Oxide on Paper‐Based Laser‐Induced Graphene for the Fabrication of Sustainable High‐Energy‐Density Supercapacitors

Klem,

Abreu,

Pinheiro

et al. 2024

Advanced Sustainable Systems

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Laser‐induced graphene (LIG) is widely used to fabricate microsupercapacitors (MSCs) on various sustainable substrates, such as wood, cork, and lignin. However, the fabrication of MSCs, especially high energy density devices on paper, has rarely been reported. In this work, LIG electrodes are fabricated on wax‐coated paper, followed by electrochemical deposition of manganese oxide (MnO2). The obtained LIG/MnO2 supercapacitors exhibit a maximum areal capacitance of 86.9 mF cm−2, while a device with pristine LIG electrodes exhibit a capacitance of 9.1 mF cm−2, both measured at a current density of 0.1 mA cm−2. In addition, the supercapacitor exhibits good cycling stability, retaining 80% of its initial capacitance after 1000 charge/discharge cycles at a current density of 1 mA cm−2. Notably, the LIG/MnO2 supercapacitor exhibits an exceptionally high energy density of 7.3 µWh cm−2 at a power density of 38.8 µW cm−2. In summary, a simple, fast, scalable, reproducible, and energy‐efficient fabrication method is represented using electrochemical deposition of manganese oxide on paper‐based laser‐induced graphene, which are natural, abundant, and sustainable materials, paving the way for large‐scale production of environmentally friendly supercapacitors.

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Electrodeposition of nanostructured γ-MnO2 film for photodegradation of Rhodamine B

Moulaï

Fellahi

Messaoudi

et al. 2018

Ionics

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Electrosynthesis and characterization of nanostructured MnO2 deposited on stainless steel electrode: a comparative study with commercial EMD

Cited by 12 publications

References 56 publications

Excellent cyclic performance of electrolytic MnO2 in Li/MnO2 rechargeable batteries

Excellent cyclic performance of electrolytic MnO2 in Li/MnO2 rechargeable batteries

Electrochemical Deposition of Manganese Oxide on Paper‐Based Laser‐Induced Graphene for the Fabrication of Sustainable High‐Energy‐Density Supercapacitors

Electrodeposition of nanostructured γ-MnO2 film for photodegradation of Rhodamine B

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