Metal-organic framework-derived hollow CoS nanobox for high performance electrochemical energy storage

Wei, Xiujuan; Li, Yanhong; Peng, Huarong; Zhou, Ming; Ou, Yingqing; Yang, Yibin; Zhang, Yunhuai; Xiao, Peng

doi:10.1016/j.cej.2018.02.032

Cited by 99 publications

(19 citation statements)

References 59 publications

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“…For supercapacitor applications, carbon cloths have been found to act as excellent substrates as they provide high conductivity, surface area and enable ion diffusion, which leads to a decrease in charge transfer resistance and increases in specific capacitance of the resultant electrode. These are highly promising compared to the widely used supercapacitor substrate materials like Ni foam and Fe nanostructures [14,15,[28][29][30][31][32] Chemically treated or activated carbon cloths (ACCs) act as effective adsorbents for inorganic ions and organic molecules. Also, the ACC adsorbents have high reusability as the adsorption sites can be regained by desorption of the adsorbed constituents.…”

Section: Significance Of Carbon Cloth-based Hybrid Materials For Supementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Carbon Cloth‐based Hybrid Materials as Flexible Electrochemical Supercapacitors

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Carbon cloths are the important materials composed of woven carbon fibres having the diameters in the range of 5–10 μm. These materials have been investigated for innumerable applications such as supercapacitors (symmetric and asymmetric), batteries, solar cells, and catalysis. They are found to be the best supports as supercapacitive materials by providing high surface area, conductivity and flexibility compared to much widely used substrate materials such as Ni foam and 1D Fe nanowires. High conductivity and surface area of carbon cloths enable ion diffusion and cause decrease in charge transfer resistance, resulting in an increase of specific capacitance of specific electrodes. Several supercapacitive metal oxides, chalcogenides, phosphides, MXenes, carbon nanotubes, graphene, and conductive polymers have been incorporated into carbon cloths to improve their energy storage activity. Further modification of carbon cloth surface via oxidation, doping and by the growth of different nanostructures is also helpful as it increases the electroactive surface area necessary for electrochemical interaction. The present review mainly focuses on the development of flexible supercapacitors using carbon cloth‐based substrate materials. Such flexible supercapacitors can be further utilized for an uninterrupted and steady power supply to wearable and portable electronic devices.

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Section: Significance Of Carbon Cloth-based Hybrid Materials For Supementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Carbon Cloth‐based Hybrid Materials as Flexible Electrochemical Supercapacitors

et al. 2019

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“…High power solar cell should be matched with a high power energy storage device, this is why electrochemical capacitor (EC) is often used as energy storage device in this system . Electrochemical capacitor has promising application foreground in this system due to its high specific power density, fast charging/discharging process, and long cycling life . For example, Karthik and co‐workers assembled a self‐sustaining power station by combining the electrochemical double‐layer capacitors (EDLCs) and a commercial solar cell, which exhibited an energy density of 17.7 Wh kg −1 and could power 40 light‐emitting diodes after charging .…”

Section: Introductionmentioning

confidence: 99%

High Energy Capacitors Based on All Metal‐Organic Frameworks Derivatives and Solar‐Charging Station Application

Wei

Peng

et al. 2019

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High energy and efficient solar charging stations using electrochemical capacitors (ECs) are a promising portable power source for the future. In this work, two kinds of metal‐organic framework (MOF) derivatives, NiO/Co3O4 microcubes and Fe2O3 microleaves, are prepared via thermal treatment and assembled into electrochemical capacitors, which deliver a relatively high specific energy density of 46 Wh kg−1 at 690 W kg−1. In addition, a solar‐charging power system consisting of the electrochemical capacitors and monocrystalline silicon plates is fabricated and a motor fan or 25 LEDs for 5 and 30 min, respectively, is powered. This work not only adds two novel materials to the growing categories of MOF‐derived advanced materials, but also successfully achieves an efficient solar‐ECs system for the first time based on all MOF derivatives, which has a certain reference for developing efficient solar‐charge systems.

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“…[29,30] Owing to their large surfacea rea,p orous inner structure and tunable pore size, [31] MOFs have been widely used in catalysis, [32] gas adsorption and desorption, [33,34] sensing, [35] drug deliverya nd optoelectronics. [38][39][40] MOF derivatives have been used in supercapacitors for two main applications:( 1) to derive porous metal oxides by the direct heat treatment of MOFs [41] and (2) as sacrificial templates for the preparation of nanoporous carbon (NC) materials. [38][39][40] MOF derivatives have been used in supercapacitors for two main applications:( 1) to derive porous metal oxides by the direct heat treatment of MOFs [41] and (2) as sacrificial templates for the preparation of nanoporous carbon (NC) materials.…”

Section: Introductionmentioning

confidence: 99%

“…[36,37] More importantly,t he application of MOF derivativesi ne lectrochemical energy storage materials (supercapacitors, batteriesa nd fuel cells) is currently an emerging research area. [38][39][40] MOF derivatives have been used in supercapacitors for two main applications:( 1) to derive porous metal oxides by the direct heat treatment of MOFs [41] and (2) as sacrificial templates for the preparation of nanoporous carbon (NC) materials. [42,43] Here, we report the preparation of NC@K 0.5 Mn 2 O 4 (NCMO) using az eolitic imidazolate framework-67 (ZIF-67) precursor as at emplate throughafacile in situ redox process.…”

Section: Introductionmentioning

confidence: 99%

In Situ Growth of Zeolitic Imidazolate Framework‐67‐derived Nanoporous Carbon@K_0.5Mn₂O₄ for High‐Performance 2.4 V Aqueous Asymmetric Supercapacitors

Wei

Peng

et al. 2018

ChemSusChem

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Aqueous asymmetric supercapacitors (ASCs) with a wide voltage window can effectively improve energy storage capacity of energy storage devices. Zeolitic imidazolate framework-67 (ZIF-67) was used as a precursor to prepare nanoporous carbon (NC), and K Mn O nanosheets were subsequently grown on the NC surface through a facile in situ redox process (denoted as NCMO). The electrode potential window of NCMO was extended to 1.2 V in a three-electrode system and the value of the potential window was higher than that of most reported manganese oxides. To assemble the asymmetric supercapacitor with a high voltage range, the as-prepared NCMO and NC (with a potential window of -1.2-0 V) were used as the positive and negative electrode, respectively. A 2.4 V NCMO//NC aqueous ASC was constructed and displayed a large energy density of 60 Wh kg at a power density of 1200 W kg and excellent rate performance (41 Wh kg even at a specific power density of 12.3 kW kg ) as well as good cycling stability (92.6 % capacitance retention over 10 000 cycles at 10 A g ). This work provides new opportunities for the development of high voltage ASCs with a high energy density for further practical application.

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Metal-organic framework-derived hollow CoS nanobox for high performance electrochemical energy storage

Cited by 99 publications

References 59 publications

Carbon Cloth‐based Hybrid Materials as Flexible Electrochemical Supercapacitors

Carbon Cloth‐based Hybrid Materials as Flexible Electrochemical Supercapacitors

High Energy Capacitors Based on All Metal‐Organic Frameworks Derivatives and Solar‐Charging Station Application

In Situ Growth of Zeolitic Imidazolate Framework‐67‐derived Nanoporous Carbon@K_0.5Mn₂O₄ for High‐Performance 2.4 V Aqueous Asymmetric Supercapacitors

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Metal-organic framework-derived hollow CoS nanobox for high performance electrochemical energy storage

Cited by 99 publications

References 59 publications

Carbon Cloth‐based Hybrid Materials as Flexible Electrochemical Supercapacitors

Carbon Cloth‐based Hybrid Materials as Flexible Electrochemical Supercapacitors

High Energy Capacitors Based on All Metal‐Organic Frameworks Derivatives and Solar‐Charging Station Application

In Situ Growth of Zeolitic Imidazolate Framework‐67‐derived Nanoporous Carbon@K0.5Mn2O4 for High‐Performance 2.4 V Aqueous Asymmetric Supercapacitors

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In Situ Growth of Zeolitic Imidazolate Framework‐67‐derived Nanoporous Carbon@K_0.5Mn₂O₄ for High‐Performance 2.4 V Aqueous Asymmetric Supercapacitors