Designed fabrication of hierarchical porous carbon nanotubes/graphene/carbon nanofibers composites with enhanced capacitive desalination properties

Zhang, Chunjie; Han, Yifei; Zhang, Tao; Wang, Huatao; Wen, Guangwu

doi:10.1007/s10853-018-2240-5

Cited by 11 publications

(3 citation statements)

References 55 publications

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“…The adsorption capacity and the charge efficiency were better by 1.87 and 1.51 times, respectively, compared with those of the traditional parallel flow by CDI structure. Another group (Zhang et al 2018) also synthesized hierarchical porous carbon nanotubes/ graphene/carbon nanofibers obtaining very high salt capacity of 36 mg/g and large retention absorbing capability of 96.9%. However, the cost of this electrode may be a challenge due to the materials used.…”

Section: Nanofibers For Desalination and Water Treatmentmentioning

confidence: 99%

Nanofibers for Water and Wastewater Treatment: Recent Advances and Developments

Tijing

Yao

Ren

et al. 2018

Energy, Environment, and Sustainability

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Materials of nanofibrous morphology and structure are attractive for solving environmental problems including water-related issues. In recent years, increasing interest is geared on the use of specially designed electrospun nanofibers for water/wastewater treatment applications. The nanofibers can be used in the form of nonwoven structures, as stand-alone membranes, as support layer or as a surface modification layer that enables added functionality to a composite material. Continuous research has been carried out in optimizing the nanofiber membrane design and structure by manipulating material, process and surrounding parameters in the electrospinning process. This chapter highlights the recent advances and developments on the potential and application of electrospun nanofibers for water/ wastewater treatment. Comprehensive discussion is presented here on various designs and structures of nanofibers and their applications to water-related treatment and the future prospects of such materials.

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Section: Nanofibers For Desalination and Water Treatmentmentioning

confidence: 99%

Nanofibers for Water and Wastewater Treatment: Recent Advances and Developments

Tijing

Yao

Ren

et al. 2018

Energy, Environment, and Sustainability

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“…The desalination capacity and rate of a CDI device are similar to the specific capacitance and rate performance of a supercapacitor and can be affected by the SSA, pore structure, and surface chemistry of the CF electrodes and can be improved using strategies similar to those discussed in Section . Activated CMF cloth, porous CNF films, and CNT fiber fabrics with a high SSA are preferred as CDI electrodes because of their high specific capacitance. ,,,− In addition, N-doping and surface coating with hydrophilic or pseudocapacitive materials (e.g., SiO 2 , Al 2 O 3 , PANi, NiO, MnO 2 , and Ag) can improve the wettability and desalination capacity. ,− The addition of CNTs or graphene to CNF fabrics can increase the porosity and conductivity, hence the desalination capacity and rate. , For example, Santangelo’s group obtained highly N-doped CNFs with a favorable pore-size distribution by electrospinning from a GO/PAN solution followed by low-temperature carbonization, which showed a desalination capacity as high as 27.6 mg g –1 . Vilatela’s group introduced a CDI device without metal current collector by using highly conductive CNT fiber fabric electrodes interpenetrated with metal oxide particles, which showed an increased salt adsorption capacity and reduced energy consumption …”

Section: Applications Of Cfs-based Advanced Eesdsmentioning

confidence: 99%

Carbon-Based Fibers for Advanced Electrochemical Energy Storage Devices

2020

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Advanced electrochemical energy storage devices (EESDs) that can store electrical energy efficiently while being miniature/flexible/wearable/load-bearing are much needed for various applications ranging from flexible/wearable/portable electronics to lightweight electric vehicles/aerospace equipment. Carbon-based fibers hold great promise in the development of these advanced EESDs (e.g., supercapacitors and batteries) due to their being lightweight, high electrical conductivity, excellent mechanical strength, flexibility, and tunable electrochemical performance. This review summarizes the fabrication techniques of carbon-based fibers, especially carbon nanofibers, carbon-nanotube-based fibers, and graphene-based fibers, and various strategies for improving their mechanical, electrical, and electrochemical performance. The design, assembly, and potential applications of advanced EESDs from these carbon-based fibers are highlighted. Finally, the challenges and future opportunities of carbon-based fibers for advanced EESDs are discussed.

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“…Different reagents and synthesis processes have been applied to prepare the hierarchal 3D CNTs/CNFs nanostructure. Polyacrylonitrile (PAN) is extensively used to prepare carbon fibers . The prepared CFs from PAN has an innovative interface toughening for advanced composite fibers and high‐performance carbon fibers .…”

Section: Preparation Steps Of Grown Cnts On Cnfsmentioning

confidence: 99%

Grown Carbon Nanotubes on Electrospun Carbon Nanofibers as a 3D Carbon Nanomaterial for High Energy Storage Performance

Alali

Liu

et al. 2019

ChemistrySelect

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Carbon hierarchical nanostructures have been widely applied because of their outstanding properties and large surface area. Future energy materials for applications, such as Li‐ion, Li‐sulfur, Li‐air batteries, and supercapacitors require materials with high energy density and power capability. The preparation of three‐dimensional (3D) carbon nanotubes (CNTs)‐carbon nanofibers (CNFs) nanomaterials through a multi‐step process has many difficulties. The aggregation, the high expense of CNTs, and the difficult conditions for synthesizing CNTs have pushed researchers to consider new methods. The direct growth of CNTs on CNFs via one‐step electrospinning and a combined pyrolysis process is an efficient method for preparing 3D CNTs‐CNFs, as demonstrated in the literature. Herein, the importance of the hybrid 3D CNTs‐CNFs nanomaterials is reviewed, as well as their growth mechanisms, and the parameter influence on the morphology of grown CNTs. Moreover, the performance of the electrochemical energy storage for the hybrid CNTs grown on CNFs in the literature is reviewed and explained. Finally, the nanomaterials form the CNTs grown CNFs have great potential for various applications.

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Designed fabrication of hierarchical porous carbon nanotubes/graphene/carbon nanofibers composites with enhanced capacitive desalination properties

Cited by 11 publications

References 55 publications

Nanofibers for Water and Wastewater Treatment: Recent Advances and Developments

Nanofibers for Water and Wastewater Treatment: Recent Advances and Developments

Carbon-Based Fibers for Advanced Electrochemical Energy Storage Devices

Grown Carbon Nanotubes on Electrospun Carbon Nanofibers as a 3D Carbon Nanomaterial for High Energy Storage Performance

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