Facile synthesis of NiMn 2 O 4 nanosheet arrays grown on nickel foam as novel electrode materials for high-performance supercapacitors

Wang, Hongmei; Wang, Jinxing; Yu, Le; Zhang, Yangyang; Hou, Dewen; Li, Tengfei

doi:10.1016/j.ceramint.2016.06.140

Cited by 82 publications

(31 citation statements)

References 26 publications

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“…In recent years, the transition MOs with 2 metal cations have been widely investigated; the advantages of mixed transition‐MOs are as follows: Binary MOs exhibit better electrical conductivity than single MO because of the relatively low activation energy for electron transfer Mixed transition‐metal cations possess richer redox active sites than mono‐MO owing to coupling of 2 metal species So far, mixed MOs with 1‐dimensional (1D), 2D, or 3‐dimensional (3D) morphology and configuration as electrodes for supercapacitors have been synthesized.…”

Section: Performance Optimization Of Mof‐derived Nanostructure Metal mentioning

confidence: 99%

“…The NiCo 2 O 4 ‐based electrode materials exhibited a high specific capacitance of 743 F g −1 at the current density of 1 A g −1 . Two‐dimensional sheet‐like NiMn 2 O 4 have been in situ grown on the Ni foam substrates by Wei et al When used as the binder‐free electrodes for supercapacitors, they possessed 662.5 and 370.5 F g −1 at the current density of 1 A g −1 in 6 M KOH and 1 M Na 2 SO 4 aqueous solutions, respectively. An et al prepared 3D flower‐like NiCo 2 O 4 hierarchitectures by the solvothermal method and subsequently annealing process.…”

Section: Performance Optimization Of Mof‐derived Nanostructure Metal mentioning

confidence: 99%

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A review of performance optimization of MOF-derived metal oxide as electrode materials for supercapacitors

et al. 2018

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Summary Metal‐organic frameworks (MOFs), as new class of porous materials, are constructed by inorganic metal centers and bridging organic links. Recently, MOFs have been proved to be effective templates for preparing metal oxides with large surface areas and controlled shape by directly annealing in air. There are lots of reports about metal‐organic framework‐derived metal oxides as electrode materials for supercapacitors. Metal‐organic framework‐derived metal oxides can offer higher capacitances compared with that prepared by other synthetic methods, likely attribute to high surface areas and optimal pore sizes. However, at present, the specific capacitances of MOF‐derived metal oxides received are far lower than theoretical values, and the cycle numbers could not meet practical demands. Accordingly, much effort has been made to improve the performance by further modifying MOFs. Thus, this paper focused on the advances in performance optimization of MOF‐derived metal oxide as electrode materials for supercapacitors as follows: Dual metal MOF‐derived binary metal oxides. Metal oxides with 2 metal cations possess better electrical conductivity and richer redox active sites than single metal oxides. Metal‐organic framework‐derived carbon/metal oxide composites (MO@C) or graphene/MOF‐derived graphene/metal oxide composites. Doping carbon not only facilitate transportation of electrodes but also contribution to extra double‐layer capacitance. Hybrid MOF‐derived metal oxide composites (MO@MO). Metal oxide composites can produce some synergistic effects that the individuals cannot provide. Metal‐organic framework‐derived metal oxides with a hollow structure. The Hollow structure could shorten ion diffusion distance and adapt to volume expansion generated during the ion intercalated/extracted process.

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Section: Performance Optimization Of Mof‐derived Nanostructure Metal mentioning

confidence: 99%

Section: Performance Optimization Of Mof‐derived Nanostructure Metal mentioning

confidence: 99%

A review of performance optimization of MOF-derived metal oxide as electrode materials for supercapacitors

et al. 2018

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“…활성 탄소를 전극으로 사용하는 EDLC에서 활성탄소 전극재료는 비정전용량의 비 표면적에 비례하기 때문에 다공성을 부여하여 에너 지밀도의 향상을 모색하는 연구가 활발히 이루어지 고 있다 [12,13]. 또한 최근에는 금속 산화물을 활성 탄소와 블렌딩 또는 음극으로 사용하여 전압 범위 를 향상시켜 에너지 밀도의 향상을 타겟으로 하는 연구도 진행되고 있다 [14][15][16] …”

Section: 서 론unclassified

The Study of Manufacturing the AAO Template and Fabrication of Carbon and Metal Oxide Nanofibers using AAO Template

Kim¹,

Park²

2016

Journal of the Korean institute of surface engineering

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In this study, we manufactured the anodized alumina oxide (AAO) template and fabricated the carbon nanofibers and manganese oxide nanofibers using AAO template for application to electrochemical capacitor. Pore diameters of the AAO template were increased from 50 to 90 nm by increasing the acid treatment time after two-step anodizing process. Furthermore nanofibers, which is fabricated by AAO template, showed uniform diameter and micro structure. It is suggested that the surface area is larger than commercial electrode material and it is enhancing the energy density by increasing the specific capacitance.

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“…On the other hand, mixed metal oxide spinels are considered as a potential candidate on account to their higher electrochemical activity, electronic conductivity and low environmental impact . There is an extensive research on the mixed metal oxide spinels used for supercapacitors including metal ferrite, metal manganite; CoFe 2 O 4 , ZnFe 2 O 4 , CuFe 2 O 4 , NiFe 2 O 4 , CoMn 2 O 4 , NiMn 2 O 4 , ZnMn 2 O 4 , and metal cobaltite; NiCo 2 O 4 , MgCo 2 O 4 , ZnCo 2 O 4 , FeCo 2 O 4 , MnCo 2 O 4 and CuCo 2 O 4 , However, the metal cobaltite spinels have drawn as the potential candidate to make active materials for the supercapacitors applications with low cost.…”

Section: Introductionmentioning

confidence: 99%

“…[8,9] On the other hand, mixed metal oxide spinels are considered as a potential candidate on account to their higher electrochemical activity, electronic conductivity and low environmental impact. [10] There is an extensive research on the mixed metal oxide spinels used for supercapacitors including metal ferrite, metal manganite; [11][12][13][14][15][16][17] [18][19][20][21][22][23] However, the metal cobaltite spinels have drawn as the potential candidate to make active materials for the supercapacitors applications with low cost.…”

Section: Introductionmentioning

confidence: 99%

Tunability of Porous CuCo₂O₄ Architectures as High‐Performance Electrode Materials for Supercapacitors

et al. 2019

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Copper cobaltite (CuCo2O4) porous structures with different morphologies are prepared through a hydrothermal method and subsequent annealing process. The tunability of morphologies is succeeded by simply regulation of solvent medium and amount of the polyvinylpyrrolidone (PVP) which is served as structure directing agent. All the prepared samples have a mesoporous nature. Specifically, the CuCo2O4‐porous structures with flowers morphology have a higher surface area (43.2 m2 g−1) and porosity (0.18 cm3 g−1) than the other porous nano structures such as flakes, blades and wires. The maximum specific capacity of CuCo2O4‐Flowers is 466.4 C g−1 at a current density of 2 A g−1. The cycling stability of CuCo2O4‐Flowers shows capacity retention of 86.3 % at a high current density of 15 A g−1 after completion of 5000 charge‐discharge cycles. The electrochemical results demonstrate that the CuCo2O4‐Flower shows superior performance than the CuCo2O4‐Flakes, Blade and Wires.

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Facile synthesis of NiMn 2 O 4 nanosheet arrays grown on nickel foam as novel electrode materials for high-performance supercapacitors

Cited by 82 publications

References 26 publications

A review of performance optimization of MOF-derived metal oxide as electrode materials for supercapacitors

A review of performance optimization of MOF-derived metal oxide as electrode materials for supercapacitors

The Study of Manufacturing the AAO Template and Fabrication of Carbon and Metal Oxide Nanofibers using AAO Template

Tunability of Porous CuCo₂O₄ Architectures as High‐Performance Electrode Materials for Supercapacitors

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Facile synthesis of NiMn 2 O 4 nanosheet arrays grown on nickel foam as novel electrode materials for high-performance supercapacitors

Cited by 82 publications

References 26 publications

A review of performance optimization of MOF-derived metal oxide as electrode materials for supercapacitors

A review of performance optimization of MOF-derived metal oxide as electrode materials for supercapacitors

The Study of Manufacturing the AAO Template and Fabrication of Carbon and Metal Oxide Nanofibers using AAO Template

Tunability of Porous CuCo2O4 Architectures as High‐Performance Electrode Materials for Supercapacitors

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Tunability of Porous CuCo₂O₄ Architectures as High‐Performance Electrode Materials for Supercapacitors