Ternary composites of delaminated-MnO<sub>2</sub>/PDDA/functionalized-CNOs for high-capacity supercapacitor electrodes

Borgohain, Rituraj; Selegue, John P.; Cheng, Yang‐Tse

doi:10.1039/c4ta04439h

Cited by 35 publications

(5 citation statements)

References 25 publications

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“…Among the materials like manganese oxide, ruthenium oxide, nickel hydroxide, PANI, polypyrrole (PPy), etc, the manganese oxide/carbon onion composite showed the maximum specific capacitance of 575 F g −1 in 0.5 M H 2 SO 4 electrolyte [ 121 ]. Borgohain et al [ 122 ] reported the polydiallyldimethylammonium chloride (PDDA) modified carbon nano-onion with MnO 2 (55 wt%) symmetric cell, which delivered a maximum capacitance of 218 F g −1 in liquid electrolyte with a high energy density of 6.14 Wh kg −1 . Wang et al [ 123 ] reported the (MnO 2 )/onion-like carbon (OLC)-based nanocomposite electrode with the specific capacitance of 177.5 F g −1 .…”

Section: Non-faradaic Capacitive (Edlc Type) Electrode Materialsmentioning

confidence: 99%

Comprehensive Insight into the Mechanism, Material Selection and Performance Evaluation of Supercapatteries

et al. 2020

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HIGHLIGHTS• This article reviewed the recent progress on material challenges, charge storage mechanism, and electrochemical performance evaluation of supercapatteries.• Supercapatteries bridge the gap between supercapacitors (low energy density) and batteries (low power density). Fig. 1 a Ragone plot of various electrochemical energy conversion and storage devices [43]. b Schematic illustration of charge storage mechanism of EDL capacitor in porous carbon electrode. c Representation of EDLC structures: Helmholtz model, Gouy-Chapman model and Gouy-Chapman-Stern model. Schematic representation of the charge storage mechanisms in pseudocapacitor; d Intercalation (bulk redox) and e surface redox Nano-Micro Lett.(2020) 12:85Page 5 of 46 85 Table 1 Classification of various energy storage devices according to their charge storage mechanisms NFCS non-Faradaic capacitive storage = EDLC storage, CFS capacitive Faradaic storage = pseudocapacitive storage, NCFS non-capacitive Faradaic storage = battery-type storage Device Supercapattery Battery Supercapacitor Hybrid supercapacitor EDLC Pseudocapacitors

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Section: Non-faradaic Capacitive (Edlc Type) Electrode Materialsmentioning

confidence: 99%

Comprehensive Insight into the Mechanism, Material Selection and Performance Evaluation of Supercapatteries

et al. 2020

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“…For instance, incorporation of the third component, say, graphene or conducting polymer or CNTs component to MnO 2 (first component) and conducting polymer or graphene system or porous nanocarbons (second component) have markedly upgraded the overall capacitance and cyclic stability through modifications in the electrical conductivity, contact interactions, porosity, electrochemical surface activities besides improving the mechanical flexibility, etc. of the resultant ternary nanocomposite electrodes relative to the corresponding MnO 2 /conducting polymer or MnO 2 /graphene or MnO 2 /CNTs binary electrode systems respectively [161–212] …”

Section: Electrochemical Performances Of Various Mno2‐based Ternary Nmentioning

confidence: 99%

Review on Current Progress of MnO₂‐Based Ternary Nanocomposites for Supercapacitor Applications

Majumdar¹

2020

ChemElectroChem

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Manganese dioxide (MnO2) has proved itself as a popular pseudocapacitive material with low fabrication cost, high availability, low toxicity, and improved handling safety compared to many other inorganics or carbon‐based systems existing in the market. However, the specific capacitance reported to date has been far inferior to that of the theoretically predicted value (ca. 1370 Fg−1), which is mainly attributed to the issues associated with poor conductivity, nanostructure agglomeration, low porosity, rapid electrolyte‐mediated dissolution, and so forth, which have considerably limited its commercial effectiveness. Thus, to bring about improvement in the electrochemical performance of MnO2‐based supercapacitors, novel designs of MnO2 nanomaterials through composite formations with other substances, such as nanocarbons, conducting polymers or inorganic materials, namely metal oxides and sulfides, have been comprehensively explored. Extensive studies on these MnO2 binary nanocomposites revealed significant improvement in the electrochemical features compared to pristine phases; nevertheless, the achieved state is still far below practicability. Hence, scientists have opted for MnO2‐based ternary nanocomposites achieved by blending appropriate proportions the three components (MnO2 nanostructures being one of the constant components) that would promote synergism to attain suitable dimensions, crystallinity, crystal structure, conductivity, mass loading, and electrolyte selectivity so as to confer superior capacitance, charge transfer kinetics, better utilization of electroactive materials, energy and power densities, as well as improved mechanical stability and environmental adaptability. Herein, recent developments and advancements in the research of various MnO2‐based ternary nanocomposites employed for supercapacitor applications have been discussed and are compared with binary analogs with special emphasis on correlating their composition, morphology, and the electrochemical properties that are noticeably modified upon introduction of the third component. The associated challenges encountered in their progress toward commercialization and the probable ideas of persuading better strategic designs of these ternary systems for high‐performance supercapacitor applications have also been delineated.

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“…S4, ESI †), demonstrating its superior cycling stability. Compared to manganese oxide based electrode materials recently reported for supercapacitors (Table S1, ESI †), [24][25][26]28,29,41,42,45,[58][59][60] the as-photodeposited 3D hierarchical Mn 3 O 4 /H-TiO 2 composite film electrode shows larger specific capacitances at higher current rates and markedly enhanced electrochemical cycling stability, which can be attributed to its unique structure characteristics. The hierarchical architecture can provide easy access of the surfaces to the liquid electrolyte, thus providing more active sites for the pseudocapacitive reactions.…”

Section: Capacitance Performancementioning

confidence: 99%

Photochemical fabrication of 3D hierarchical Mn₃O₄/H-TiO₂ composite films with excellent electrochemical capacitance performance

Zhu

Zhang

Chang

et al. 2016

Phys. Chem. Chem. Phys.

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We herein report a novel, energy-saving and environmentally benign photodeposition approach to fabricate a manganese oxide film on hydrogenated TiO2 (H-TiO2) nanotube arrays using a Mn(2+)-containing solution as a precursor. Mn(2+) ions are oxidized to Mn3O4 by the photogenerated holes during the photodeposition. The preferential growth of Mn3O4 on the nucleation sites leads to the formation of Mn3O4 nanorods on each H-TiO2 nanotube, forming a 3D hierarchical Mn3O4/H-TiO2 composite film. The as-fabricated 3D hierarchical Mn3O4/H-TiO2 composite film electrode delivers a high specific capacitance of 508 F g(-1) at a current of 0.7 A g(-1). The composite film electrode still shows a specific capacitance of 228 F g(-1) even at a high rate of 35.7 A g(-1), demonstrating its prominent rate capability. Remarkably, the composite film electrode shows no obvious capacitance decay after 10,000 charge/discharge cycles at a current density of 3.6 A g(-1), revealing its superior electrochemical cycling stability. The prominent pseudocapacitive performance of the composite film electrode can be attributed to its unique structure characteristics. The as-constructed energy-saving and environmentally benign photodeposition method can be used as a general and efficient route to prepare other composite materials with controlled morphologies and dimensions.

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Ternary composites of delaminated-MnO₂/PDDA/functionalized-CNOs for high-capacity supercapacitor electrodes

Abstract: Synthesis via sequential deposition of polydiallyldimethylammonium chloride (PDDA), delaminated-manganese oxide (MnO2) and functionalized carbon nano-onions (ONCNOs) produces high-performance supercapacitor electrodes.

Cited by 35 publications

References 25 publications

Comprehensive Insight into the Mechanism, Material Selection and Performance Evaluation of Supercapatteries

Comprehensive Insight into the Mechanism, Material Selection and Performance Evaluation of Supercapatteries

Review on Current Progress of MnO₂‐Based Ternary Nanocomposites for Supercapacitor Applications

Photochemical fabrication of 3D hierarchical Mn₃O₄/H-TiO₂ composite films with excellent electrochemical capacitance performance

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Ternary composites of delaminated-MnO2/PDDA/functionalized-CNOs for high-capacity supercapacitor electrodes

Abstract: Synthesis via sequential deposition of polydiallyldimethylammonium chloride (PDDA), delaminated-manganese oxide (MnO2) and functionalized carbon nano-onions (ONCNOs) produces high-performance supercapacitor electrodes.

Cited by 35 publications

References 25 publications

Comprehensive Insight into the Mechanism, Material Selection and Performance Evaluation of Supercapatteries

Comprehensive Insight into the Mechanism, Material Selection and Performance Evaluation of Supercapatteries

Review on Current Progress of MnO2‐Based Ternary Nanocomposites for Supercapacitor Applications

Photochemical fabrication of 3D hierarchical Mn3O4/H-TiO2 composite films with excellent electrochemical capacitance performance

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Ternary composites of delaminated-MnO₂/PDDA/functionalized-CNOs for high-capacity supercapacitor electrodes

Review on Current Progress of MnO₂‐Based Ternary Nanocomposites for Supercapacitor Applications

Photochemical fabrication of 3D hierarchical Mn₃O₄/H-TiO₂ composite films with excellent electrochemical capacitance performance