Activated carbon fiber cloths as electrodes for high performance electric double layer capacitors

Xu, Bin; Wu, Feng; Chen, Shi; Zhang, Cunzhong; Cao, Guangming; Yang, Yusheng

doi:10.1016/j.electacta.2007.01.006

Cited by 129 publications

(61 citation statements)

References 16 publications

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“…These materials are also optimized for potential use as electrodes in supercapacitors in energy storage devices [15][16]. Highly porous nanostructured ACC carbon [17][18], titania modified material [19], ordered mesoporous carbon (OMC) [20], carbon naotubes (CNT) and its carbon nanofiber composite [21], zinc oxide [22] and modified ACC electrodes have been found to be applicable in CDI processes.…”

Section: Introductionmentioning

confidence: 99%

Effect of Chemically Treated / Untreated Carbon Cloth: Potential Use as Electrode Materials in the Capacitive Deionization Process of Desalination of Aqueous Salt Solution

Thamilselvan

Nesaraj

Noel

et al. 2015

Journal of Electrochemical Science and Technology

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Capacitive deionization (CDI) process is a novel approach for desalination of an aqueous salt solution. In the present study, an activated carbon cloth (ACC) is proposed as effective electrode material. Initially the carbon cloth was activated in 1 M and 8 M HNO 3 for 9 hours at room temperature. The untreated and chemically activated carbon cloth (ACC) electrode materials were subjected to BET surface area measurements in order to get information about their specific surface area, average pore size, total pore volume and micropore area. The above materials were characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM) also. The electrochemical studies for the electrodes were done using cyclic voltammetry (CV) in 0.1 M Na 2 SO 4 medium. From the studies, it was found that resistivity of the activated carbon cloth electrodes (treated in 1 M and 8 M HNO 3 ) was decreased significantly by the chemical oxidation in nitric acid at room temperature and its capacitance was found to be 90 F/g (1 M HNO 3 ) and 154 F/g (8 M HNO 3 ) respectively in 0.1 M Na 2 SO 4 solution. The capacitive deionization behavior of a single cell CDI with activated carbon cloth electrodes was also studied and reported in this work.

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Section: Introductionmentioning

confidence: 99%

Effect of Chemically Treated / Untreated Carbon Cloth: Potential Use as Electrode Materials in the Capacitive Deionization Process of Desalination of Aqueous Salt Solution

Thamilselvan

Nesaraj

Noel

et al. 2015

Journal of Electrochemical Science and Technology

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“…This may be ascribed to the different distribution of pore size of SWCNT film. 30 The impedance plots can be explained using the equivalent circuit shown in Fig. 6b, 24,39 where R e is the electrolyte resistance, C f and R f are the capacitance and resistance of SWCNT film electrodes, and C dl and R ct are the double-layer capacitance and chargetransfer resistance, respectively; Z w is the Warburg impedance related to the ionic diffusion in the SWCNT films.…”

mentioning

confidence: 99%

Compact-designed supercapacitors using free-standing single-walled carbon nanotube films

Niu

Zhou

Chen

et al. 2011

Energy Environ. Sci.

321

214

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We reported the realization of assembling compact-designed supercapacitors using large-scaled freestanding and flexible single-walled carbon nanotube (SWCNT) films as both anode and cathode. A prototype of the processing procedures was developed to obtain the uniform spreading of the SWCNT films onto the separators serving as both electrodes and charge collectors without metallic current collectors, leading to a simplified and lightweight architecture. The area of SWCNT film on a separator can be scaled up and its thickness can be extended. High energy and power densities (43.7 Wh kg -1 and 197.3 kW kg -1 , respectively) were achieved from the prepared SWCNT film-based compact-designed supercapacitors with small equivalent series resistance. The specific capacitance of this kind of compact-designed SWCNT film supercapacitor is about 35 F g -1 . These results clearly show the potential application of free-standing SWCNT film in compact-designed supercapacitor with enhanced performance and significantly improved energy and power densities. We reported the realization of assembling compact-designed supercapacitors using large-scaled freestanding and flexible single-walled carbon nanotube (SWCNT) films as both anode and cathode. A prototype of the processing procedures was developed to obtain the uniform spreading of the SWCNT films onto the separators serving as both electrodes and charge collectors without metallic current collectors, leading to a simplified and lightweight architecture. The area of SWCNT film on a separator can be scaled up and its thickness can be extended. High energy and power densities (43.7 Wh kg À1 and 197.3 kW kg À1, respectively) were achieved from the prepared SWCNT film-based compact-designed supercapacitors with small equivalent series resistance. The specific capacitance of this kind of compact-designed SWCNT film supercapacitor is about 35 F g À1 . These results clearly show the potential application of free-standing SWCNT film in compact-designed supercapacitor with enhanced performance and significantly improved energy and power densities.

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“…El mayor número de trabajos se ha reportado usando carbonos microporosos como material de electrodo; y la mayoría de los dispositivos disponibles comercialmente usan electrodos de carbono y electrolitos orgánicos [9]. Se han empleado materiales carbonosos como carbones activados [10,11], aerogeles de carbón [12,13], nanotubos de carbono [14,15], nanofibras de carbono [16,17] y carbones nanométricos [18][19][20]. Debe destacarse que algunos de los materiales carbonosos empleados poseen bajo costo, lo que implica un beneficio adicional para su uso [21,22].…”

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Nanoestructura de perovskita doble La2NiMnO6 obtenido por ruta de citrato para supercapacitores

Bavio¹,

Tasca²,

Acosta³

et al. 2018

Matéria (Rio J.)

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RESUMEN En este trabajo se presenta el estudio de la perovskita doble La2NiMnO6 como material de electrodo para supercapacitores. El óxido mixto fue preparado por ruta de precursores citrato (CIT). La muestra fue calcinada 4 horas a 800 ºC. El material fue caracterizado por DRXP, espectroscopía FTIR y microscopía SEM. El comportamiento capacitivo del material fue evaluado mediante voltamperometría cíclica y mediciones galvanostáticas de carga/descarga en medio alcalino y ácido. Los perfiles I/V fueron registrados variando las velocidades de barrido de 10 a 100 mV/s. Las curvas galvanostáticas de carga/descarga se registraron a diferentes densidades de corriente, con valores entre 3 y 17 A/g. Los valores más altos de capacitancia fueron obtenidos en medio alcalino. Se encontraron valores de capacitancia específica de 1681 F/g a una densidad de corriente de 3 A/g, potencia y energía específica de 2903 W/kg y 378 Wh/kg, respectivamente. Mientras que en medio ácido los valores fueron de 492 F/g, 3225 W/kg, 137 Wh/kg de capacitancia, potencia y energía específica, respectivamente. Estos resultados obtenidos permiten considerar a las perovskitas dobles como potenciales materiales de electrodo para supercapacitores.

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Activated carbon fiber cloths as electrodes for high performance electric double layer capacitors

Cited by 129 publications

References 16 publications

Effect of Chemically Treated / Untreated Carbon Cloth: Potential Use as Electrode Materials in the Capacitive Deionization Process of Desalination of Aqueous Salt Solution

Effect of Chemically Treated / Untreated Carbon Cloth: Potential Use as Electrode Materials in the Capacitive Deionization Process of Desalination of Aqueous Salt Solution

Compact-designed supercapacitors using free-standing single-walled carbon nanotube films

Nanoestructura de perovskita doble La2NiMnO6 obtenido por ruta de citrato para supercapacitores

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