Fabrication of manganese oxide/three-dimensional reduced graphene oxide composites as the supercapacitors by a reverse microemulsion method

Wei, Bing; Wang, Lidong; Miao, Qinghua; Yuan, Yukun; Dong, Pei; Vajtai, Róbert; Fei, Weidong

doi:10.1016/j.carbon.2014.12.063

Cited by 76 publications

(38 citation statements)

References 79 publications

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“…The MnO2 has α, β, γ, and δ -type polymorph Salunkhe et al, 2015). The advantages of manganese-based metal oxides include low cost, low toxicity, natural abundance, and environmental friendly in nature (Sui et al, 2015;Wei et al, 2015b). In aqueous and organic electrolyte, the MnO, MnO2, and Mn2O3 can form the different oxidation states.…”

Section: Recent Advances In Manganese Oxide Supercapacitormentioning

confidence: 99%

“…Thus, it results in the high-specific capacitance. The highest reported theoretical specific capacitance of MnO2 is 1.370 Fg −1 (Guo et al, 2015a;Wei et al, 2015b). However, the low electrical conductivity and large volume change during the charge-discharge process result in the unsatisfactory rate performance and cyclic stability.…”

Section: Recent Advances In Manganese Oxide Supercapacitormentioning

confidence: 99%

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Recent Advancements in the Cobalt Oxides, Manganese Oxides, and Their Composite As an Electrode Material for Supercapacitor: A Review

Uke¹,

Akhare

Bambole³

et al. 2017

Front. Mater.

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Recently, our modern society demands the portable electronic devices such as mobile phones, laptops, smart watches, etc. Such devices demand light weight, flexible, and low-cost energy storage systems. Among different energy storage systems, supercapacitor has been considered as one of the most potential energy storage systems. This has several significant merits such as high power density, light weight, eco-friendly, etc. The electrode material is the important part of the supercapacitor. Recent studies have shown that there are many new advancement in electrode materials for supercapacitors. In this review, we focused on the recent advancements in the cobalt oxides, manganese oxides, and their composites as an electrode material for supercapacitor.

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Section: Recent Advances In Manganese Oxide Supercapacitormentioning

confidence: 99%

Section: Recent Advances In Manganese Oxide Supercapacitormentioning

confidence: 99%

Recent Advancements in the Cobalt Oxides, Manganese Oxides, and Their Composite As an Electrode Material for Supercapacitor: A Review

Uke¹,

Akhare

Bambole³

et al. 2017

Front. Mater.

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show abstract

“…B. Wei et al reports the MnO 2 /rGO composites displayed an excellent cycling (2.3% loss after 1000 cycles) [13]. The C/CoNi 3 O 4 composite possesses a specific capacitance of 1299 F g À1 and excellent rate capability (78% retention at the large discharge current) [14].…”

Section: Introductionmentioning

confidence: 97%

Mesoporous composite nickel cobalt oxide/graphene oxide synthesized via a template-assistant co-precipitation route as electrode material for supercapacitors

Wang

Cao

et al. 2016

Journal of Power Sources

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“…showed that a supercapacitors made of nanoporous gold and nanocrystalline MnO 2 resulted in a specific capacitance of 1145 F g −1 at 50 mV s −1 . Fei group28 reported the reverse micro emulsion method to prepare 3–20 nm MnO 2 /3D RGO composites. The 3D RGO could provide channels for rapid ionic and electronic transport.…”

mentioning

confidence: 99%

In-situ growth of MnO2 crystals under nanopore-constraint in carbon nanofibers and their electrochemical performance

Yang

Liu

et al. 2016

Sci Rep

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Growing MnO2 nanocrystals in the bulk of porous carbon nanofibers is conducted in a KMnO4 aqueous solution aimed to enhance the electrochemical performance of MnO2. The rate of redox reaction between KMnO4 and carbon was controlled by the concentration of KMnO4 in a neutral solution. The MnO2 nanoparticles grow along with (211) crystal faces when the redox reaction happens on the surface of fibers under 1D constraint, while the nanoparticles grow along with (200) crystal faces when the redox reaction happens in the bulk of fibers under 3D constraint. The composite, where MnO2 nanoparticles are formed in the bulk under a constraint, yields an electrode material for supercapacitors showing good electron transport, rapid ion penetration, fast and reversible Faradaic reaction, and excellent rate performance. The capacitance of the composite electrode could be 1282 F g−1 under a current density of 0.2 A g−1 in 1 M Na2SO4 electrolyte. A symmetric supercapacitor delivers energy density of 36 Wh kg−1 with power density of 39 W kg−1, and can maintain 7.5 Wh kg−1 at 10.3 kW kg−1. It exhibits an excellent electrochemical cycling stability with 101% initial capacitance and 95% columbic efficiency even after 1000 cycles of charge/discharge.

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Fabrication of manganese oxide/three-dimensional reduced graphene oxide composites as the supercapacitors by a reverse microemulsion method

Cited by 76 publications

References 79 publications

Recent Advancements in the Cobalt Oxides, Manganese Oxides, and Their Composite As an Electrode Material for Supercapacitor: A Review

Recent Advancements in the Cobalt Oxides, Manganese Oxides, and Their Composite As an Electrode Material for Supercapacitor: A Review

Mesoporous composite nickel cobalt oxide/graphene oxide synthesized via a template-assistant co-precipitation route as electrode material for supercapacitors

In-situ growth of MnO2 crystals under nanopore-constraint in carbon nanofibers and their electrochemical performance

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