Solid‐State Supercapacitor Based on Activated Carbon Cloths Exhibits Excellent Rate Capability

Wang, Gongming; Wang, Hanyu; Lu, Xihong; Ling, Yichuan; Yu, Minghao; Zhai, Teng; Tong, Yexiang; Li, Yat

doi:10.1002/adma.201304756

Cited by 695 publications

(437 citation statements)

References 38 publications

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“…Various carbon-based materials have been investigated experimentally and theoretically as electrode materials for energy storage and conversion devices such as in fuel cells [60][61][62][63][64] , supercapacitors (SCs) [65][66][67][68][69][70] and LIBs [71][72][73][74][75], all aimed at improving the specific capacity, cyclic efficiency, lifetime, power and energy density of the energy storage devices [71,76]. The electrochemical insertion of sodium ion in carbon based materials started in the 1980's.…”

Section: Hard Carbonmentioning

confidence: 99%

A review of carbon materials and their composites with alloy metals for sodium ion battery anodes

Balogun

Luo

Qiu

et al. 2016

Carbon

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314

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Section: Hard Carbonmentioning

confidence: 99%

A review of carbon materials and their composites with alloy metals for sodium ion battery anodes

Balogun

Luo

Qiu

et al. 2016

Carbon

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582

314

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“…Since carbon cloths are made of carbon fiber yarns, which are closely packed together and lack of mesopores,22 it makes them impenetrable for bacteria. On the contrary, bacterial colonies were clearly observed on both the exterior and interior parts of rGO‐Ni and N‐GA anodes (Figure 4b,c).…”

Section: Resultsmentioning

confidence: 99%

Boosting Power Density of Microbial Fuel Cells with 3D Nitrogen‐Doped Graphene Aerogel Electrode

et al. 2016

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A 3D nitrogen‐doped graphene aerogel (N‐GA) as an anode material for microbial fuel cells (MFCs) is reported. Electron microscopy images reveal that the N‐GA possesses hierarchical porous structure that allows efficient diffusion of both bacterial cells and electron mediators in the interior space of 3D electrode, and thus, the colonization of bacterial communities. Electrochemical impedance spectroscopic measurements further show that nitrogen doping considerably reduces the charge transfer resistance and internal resistance of GA, which helps to enhance the MFC power density. Importantly, the dual‐chamber milliliter‐scale MFC with N‐GA anode yields an outstanding volumetric power density of 225 ± 12 W m−3 normalized to the total volume of the anodic chamber (750 ± 40 W m−3 normalized to the volume of the anode). These power densities are the highest values report for milliliter‐scale MFCs with similar chamber size (25 mL) under the similar measurement conditions. The 3D N‐GA electrode shows great promise for improving the power generation of MFC devices.

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“…11-16 Wang et al 17,18 reported the chemical and electrochemical exfoliation approach by using acidic solutions to enhance the capacitance of the CC. In their approach, the surface area of the CC was increased but large number of oxygen containing functional * Electrochemical Society Member.…”

Section: -9mentioning

confidence: 99%

Surface Modified Carbon Cloth via Nitrogen Plasma for Supercapacitor Applications

Chodankar

Kim

2018

J. Electrochem. Soc.

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Carbon cloth (CC) is a basic component for various electrochemical applications including supercapacitors, batteries, and catalysts. However, the hydrophobic nature and poor compatibility of CC with electrolyte ions remain an issue. In the present work, we developed a simple yet effective nitrogen plasma approach to induce nanostructuring over the CC, thereby significantly increasing the wettability and surface area of the CC, which both favor robust electrochemical reactions. In addition to this, nitrogen doping on the surface of the CC allowed more electroactive species for electrochemical reactions. Benefiting from these integrated merits, the plasma-treated nitrogen-doped CC (NCC) shows excellent supercapacitive features including an areal capacitance of 741 mF/cm 2 , which is much higher than that of the bare CC. Moreover, the NCC shows excellent cycling stability over 5000 charge-discharge cycles without losing its initial capacitance. The presented approach provides an innovative route to design and develop highly efficient carbon-based electrodes for supercapacitor applications. The irregularity of renewable energy resources induced by environmental pollution and global warming has driven the development of efficient and pollution-free energy-generating and storage devices.1-3 Among the different available technologies, the production of hydrogen via the electrocatalysis of water and storing electricity in electrochemical energy storage devices are promising approaches. 4-9The critical factor for such devices is the design and development of advanced electrode materials and electrolytes using cost-effective techniques. In previous research, various electroactive materials and electrolytes have been utilized to enhance the electrochemical performance of energy-generating and -storing devices. Current collectors are also important in determining the overall electrochemical performance of such devices, but current collectors are rarely explored in existing literature toward enhancing the electrochemical performance of devices.10 Typically, metal-based current collectors like stainless steel (SS), nickel foam, and plates of copper and titanium are used for electrochemical devices because they offer high electrical conductivity and ductility. Despite this advantage, the bulky and heavy nature of metallic current collectors limit their large-scale application. Moreover, the corrosion of metal-based current collectors in liquid electrolytes constrained the working lifetimes of metal-based electrochemical devices. From a practical perspective, high areal and volumetric electrochemical performances (like the areal capacitance) are very important. For metal-based current collectors, achieving the desired area-or volumenormalized electrochemical performance requires larger current collectors, thereby lowering the weight-normalized electrochemical performance in the final product.Carbon-based current collectors such as carbon cloth (CC) and graphite paper have numerous advantages over metal-based current collectors,...

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Solid‐State Supercapacitor Based on Activated Carbon Cloths Exhibits Excellent Rate Capability

Cited by 695 publications

References 38 publications

A review of carbon materials and their composites with alloy metals for sodium ion battery anodes

A review of carbon materials and their composites with alloy metals for sodium ion battery anodes

Boosting Power Density of Microbial Fuel Cells with 3D Nitrogen‐Doped Graphene Aerogel Electrode

Surface Modified Carbon Cloth via Nitrogen Plasma for Supercapacitor Applications

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