One-pot synthesis of manganese oxide/graphene composites via a plasma-enhanced electrochemical exfoliation process for supercapacitors

Minh, Dang Nhat; Nguyễn, Thanh Hải; Nguyen, To Van; Thu, Tran Viet; Le, Hoang Sinh; Akabori, Masashi; Ito, Nobuaki; Nguyen, Hoang; Le, Trong Lu; Nguyen, Tuan Hong; Nguyen, Van Tu; Phan, Ngoc Hong

doi:10.1088/1361-6528/ab8fe5

Cited by 34 publications

(8 citation statements)

References 42 publications

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“…01-080-1098 having an open-tunnel (1 × N tunnel size) structure. 29 The FE-SEM image (Fig. 5b) at 200 00× displays a nanoower structure, which is in line with other reports.…”

Section: Charge-storage Mechanism Of Layered Mno 2 In the Wet Dmso El...supporting

confidence: 91%

Unveiling the role of water in enhancing the performance of zinc-ion batteries using dimethyl sulfoxide electrolyte and the manganese dioxide cathode

et al. 2023

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“…01-080-1098 having an open-tunnel (1 × N tunnel size) structure. 29 The FE-SEM image (Fig. 5b) at 200 00× displays a nanoower structure, which is in line with other reports.…”

Section: Charge-storage Mechanism Of Layered Mno 2 In the Wet Dmso El...supporting

confidence: 91%

Unveiling the role of water in enhancing the performance of zinc-ion batteries using dimethyl sulfoxide electrolyte and the manganese dioxide cathode

et al. 2023

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“…The spin energy separation between these two peaks is 11.7 eV. These results are in accordance with the previous reports [19,49,51] [6,[52][53][54]. Figure 12(a-d) compares the morphologies of the pristine substrate and the electrodeposited MnO 2 formed at different times.…”

Section: Vgcnf-ink/paper As a Substrate For The Electrodeposition Of Metal Oxidessupporting

confidence: 91%

Chinese ink-facilitated fabrication of paper-based composites as electrodes for supercapacitors

Yan

Xiao

et al. 2021

International Journal of Smart and Nano Materials

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Commercial Chinese ink was employed to disperse pristine vapor-grown carbon nanofibers (VGCNFs) in aqueous suspensions via horizontal ball milling. The obtained suspension was used to fabricate conductive paper-based composites through filtration-deposition onto filter paper. It was found that the carbon black particles from the Chinese ink helped separate VGCNFs and acted as connection points between the VGCNFs, while the glue reinforced the conduction network. Thus, the VGCNF-ink/paper ternary composite showed sufficiently low sheet resistance. With merely 2.5 mg•cm −2 VGCNFs, the sheet resistance could be reduced to 4.5 Ω•sq −1 . As a proof of concept, these paper-based composites were directly used as electrodes of solid-state symmetric electronic double-layer capacitors (EDLCs) and the substrate for the electrodeposition of MnO 2 to achieve higher electrochemical performances. The EDLCs fabricated with 2.5 mg•cm −2 VGCNFs showed a specific capacitance of 224 mF•cm −2 at a current density of 1 mA•cm −2 , which was retained by 86.4% after 10,000 charge-discharge cycles. Moreover, thanks to the high electrical conductivity and the porous structure, the MnO 2 decorated paper-based composites exhibited dramatically enhanced specific capacitance. It is believed that our finding offers an idea to directly utilize commercial Chinese ink for the fabrication of electrode materials.

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“…This high energy instantly breaks through the air-gap insulator then creates the plasma at cathode tip. Plasma-assisted exfoliation method was first used for the exfoliation of graphene sheets from graphite rod, and by modifying the electrolyte, different types of graphene-based composites can be formed [13,14]. This PE 3 P is facile, onestep, low-cost, environmentally friendly in the synthesis of both graphene sheets and MoO2 nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

One-step Synthesis of Molybdenum Oxide/graphene Composites

Minh¹,

Minh²,

Trung³

et al. 2021

MaP

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We herein introduce a new approach to synthesize MoO2/graphene composites via plasma-enhanced electrochemical exfoliation process. Our samples were prepared by electrifying graphite rods in (NH4)2Mo7O24 solution under a DC voltage of 70V. By controlling the experimental parameters such as the initial ratio of [Mo7O24]2– precursor, the current and time, we can modify the size and the size distribution of MoO2 nanoparticles on graphene sheets. The composites were characterized with Scanning Electron Microscopy, Transmission Electron Microscopy, X-ray Diffraction and Raman Spectroscopy.

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One-pot synthesis of manganese oxide/graphene composites via a plasma-enhanced electrochemical exfoliation process for supercapacitors

Cited by 34 publications

References 42 publications

Unveiling the role of water in enhancing the performance of zinc-ion batteries using dimethyl sulfoxide electrolyte and the manganese dioxide cathode

Unveiling the role of water in enhancing the performance of zinc-ion batteries using dimethyl sulfoxide electrolyte and the manganese dioxide cathode

Chinese ink-facilitated fabrication of paper-based composites as electrodes for supercapacitors

One-step Synthesis of Molybdenum Oxide/graphene Composites

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