A bird nest-like manganese dioxide and its application as electrode in supercapacitors

Ran, Fen; Fan, Huili; Wang, Lingren; Zhao, Lei; Tan, Yongtao; Zhang, Xuanxuan; Kong, Ling‐Bin; Kang, Long

doi:10.1016/s2095-4956(14)60274-6

Cited by 17 publications

(7 citation statements)

References 37 publications

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“…This phenomenon again guides their capacitive behavior significantly [82,83,85] . Some of the interesting electrochemical performances of various types of pristine MnO 2 nanostructures with different crystalline forms have been shown in Table 2 that distinctively indicates the extraordinary variation of capacitive behavior of MnO 2 with changing morphology and crystallinity [86–93] . For example, in a comparative electrochemical study of various MnO 2 nano‐forms, it was revealed that the order of specific capacitance varies in the order: β‐<γ‐<δ‐<α‐MnO 2 ; all samples obtained by direct precipitation technique [86] .…”

Section: Specialty Of Mno2 For Applications In Supercapacitorsmentioning

confidence: 90%

“…[82,83,85] Some of the interesting electrochemical performances of various types of pristine MnO 2 nanostructures with different crystalline forms have been shown in Table 2 that distinctively indicates the extraordinary variation of capacitive behavior of MnO 2 with changing morphology and crystallinity. [86][87][88][89][90][91][92][93] For example, in a comparative electrochemical study of various MnO 2 nano-forms, it was revealed that the order of specific capacitance varies in the order: β-< γ-< δ-< α-MnO 2 ; all samples obtained by direct precipitation technique. [86] Again, different MnO 2 crystal phases synthesized via wet-chemical approach reported the relative capacitance order as: pyrolusite < Ni-todorokite < ramsdellite < cryptomelane < Ni-doped todorokite < birnessite < spinel.…”

Section: Specialty Of Mno 2 For Applications In Supercapacitorsmentioning

confidence: 99%

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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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Section: Specialty Of Mno2 For Applications In Supercapacitorsmentioning

confidence: 90%

Section: Specialty Of Mno 2 For Applications In Supercapacitorsmentioning

confidence: 99%

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

Majumdar¹

2020

ChemElectroChem

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“…It has a high theoretical specific capacitance [ 30 ]. It has shorter diffusion ion lengths than its bulk counterpart [ 31 ]. Its tunnel like crystal structure is unique in terms of its application as a high charge storage material.…”

Section: Introductionmentioning

confidence: 99%

Functionalized Carbon Nanotube and MnO2 Nanoflower Hybrid as an Electrode Material for Supercapacitor Application

et al. 2021

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Functionalized carbon nanotube (FCNT) and Manganese Oxide (MnO2) nanoflower hybrid material was synthesized using hydrothermal technique as a promising electrode material for supercapacitor applications. The morphological investigation revealed the formation of ‘nanoflower’ like structure of MnO2 connected with FCNT, thus paving an easy path for the conduction of electrons during the electrochemical mechanism. A significant improvement in capacitance properties was observed in the hybrid material, in which carbon nanotube acts as a conducting cylindrical path, while the major role of MnO2 was to store the charge, acting as an electrolyte reservoir leading to an overall improved electrochemical performance. The full cell electrochemical analysis of FCNT-MnO2 hybrid using 3 M potassium hydroxide (KOH) electrolyte indicated a specific capacitance of 359.53 F g−1, specific energy of 49.93 Wh kg−1 and maximum specific power of 898.84 W kg−1 at 5 mV s−1. The results show promise for the future of supercapacitor development based on hybrid electrode materials, where high specific energy can be achieved along with high specific power and long cycle life.

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“…There is therefore increasing interest in nanostructured composite material, which is excellent compared to the pure material as they can combine the advantages of both components. At the molecular level, the completely different components of materials not only greatly improve the electrochemical properties, but also provide a synthesis technology of nanocomposite [16][17][18][19][20][21][22][23]. There are several methods to prepare organic-inorganic nanometer composites, for example, electrochemical method [24][25][26][27], in-situ method [28,29], etc.…”

Section: Introductionmentioning

confidence: 99%

Preparation of nano-PANI@MnO2 by surface initiated polymerization method using as a nano-tubular electrode material: The amount effect of aniline on the microstructure and electrochemical performance

Ran

Yang

Zhao

et al. 2015

Journal of Energy Chemistry

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A bird nest-like manganese dioxide and its application as electrode in supercapacitors

Cited by 17 publications

References 37 publications

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

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

Functionalized Carbon Nanotube and MnO2 Nanoflower Hybrid as an Electrode Material for Supercapacitor Application

Preparation of nano-PANI@MnO2 by surface initiated polymerization method using as a nano-tubular electrode material: The amount effect of aniline on the microstructure and electrochemical performance

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A bird nest-like manganese dioxide and its application as electrode in supercapacitors

Cited by 17 publications

References 37 publications

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

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

Functionalized Carbon Nanotube and MnO2 Nanoflower Hybrid as an Electrode Material for Supercapacitor Application

Preparation of nano-PANI@MnO2 by surface initiated polymerization method using as a nano-tubular electrode material: The amount effect of aniline on the microstructure and electrochemical performance

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

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