Reduced Graphene Oxide/Carbon Nanotube Composites as Electrochemical Energy Storage Electrode Applications

Yang, Wei; Chen, Yan; Wang, Jingfeng; Peng, Tianjun; Xu, Jin; Yang, Bong-Jun; Tang, Kai

doi:10.1186/s11671-018-2582-6

Cited by 25 publications

(18 citation statements)

References 31 publications

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“…In rGO/CNTs films, rGO nanosheets could provide more active sites accessible to charge storage, resulting in high specific capacitance. Moreover, rGO nanosheets intertwined with carbon nanotubes also enhance mechanical stability, increase active surface area and electrode/electrolyte contact area, provide short diffusion length for ions and electrons and high conductivity to improve electrochemical performance [33][34][35][36][37][38]. Firstly, the electrochemical behaviors of rGO/ CNTs film electrode is investigated in 1 M KOH electrolyte using a three-electrode systems.…”

Section: Introductionmentioning

confidence: 99%

Supercapacitors based on free-standing reduced graphene oxides/carbon nanotubes hybrid films

et al. 2018

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The freestanding of reduced graphene oxides/carbon nanotubes (rGO/CNTs) hybrid films are synthesized via the simple vacuum filtration and thermal reduction methods. And the electrochemical behaviors of rGO/CNTs hybrid films are investigated in KOH and in Et 4 NBF 4 /AN electrolyte, respectively. In three-electrode systems, the rGO/CNTs hybrid films show a maximum specific capacitance of 221 F g −1 , a 71% capacitance retention, and an excellent cycle life in 1 M KOH electrolyte. And the electrochemical behaviors of rGO/CNTs films in Et 4 NBF 4 /AN electrolyte under three-electrode systems show a maximum specific capacitance of 174 F g −1 and good rate capability. Moreover, a symmetric supercapacitor of rGO/ CNTs//rGO/CNTs demonstrates a maximum specific capacitance of 24 F g −1 at 1 A g −1 , a energy density of 20.8 Wh kg −1 at 1.27 kW kg −1 , and an excellent cycle life of 86.1% retention after 5000 cycles. It suggests that the symmetric supercapacitor could be regarded as an ideal energy storage system.

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Section: Introductionmentioning

confidence: 99%

Supercapacitors based on free-standing reduced graphene oxides/carbon nanotubes hybrid films

et al. 2018

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“…Wrinkle like structure of graphene sheets can provide high surface and increase active sites for the electron transfer for the generation of hydrogen peroxide. 31 In Fig. 3c, wrapping of rGO sheets toward CNTs and interconnected rGO sheets by CNTs can be seen.…”

Section: Resultsmentioning

confidence: 91%

Highly stable binder free CNTs/rGO aerogel electrode for decolouration of methylene blue & palm oil mill effluent via electro-Fenton oxidation process

et al. 2019

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“…Although the hydrogen storage properties of CNTs have been reported to be very different, there is an extremely great demand for hydrogen energy applications in electric vehicles, batteries, and military fields. Furthermore, CNTs play an important role in energy storage devices, such as photovoltaic cells, supercapacitors, and lithium-ion batteries [67][68][69][70][71][72][73][74][75][76]. Thus, investigations of CNTs as candidate hydrogen storage materials will not stop in the next few decades.…”

Section: Introductionmentioning

confidence: 99%

An Overview of the Recent Progress in Modifications of Carbon Nanotubes for Hydrogen Adsorption

2020

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Many researchers have carried out experimental research and theoretical analysis on hydrogen storage in carbon nanotubes (CNTs), but the results are very inconsistent. The present paper reviewed recent progress in improving the hydrogen storage properties of CNTs by various modifications and analyzed the hydrogen storage mechanism of CNTs. It is certain that the hydrogen storage in CNTs is the result of the combined action of physisorption and chemisorption. However, H2 adsorption on metal-functionalized CNTs still lacks a consistent theory. In the future, the research of CNTs for hydrogen adsorption should be developed in the following three directions: (1) A detailed study of the optimum number of metal atoms without aggregation on CNT should be performed, at the same time suitable preparation methods for realizing controllable doping site and doped configurations should be devised; (2) The material synthesis, purification, and activation methods have to be optimized; (3) Active sites, molecular configurations, effectively accessible surface area, pore size, surface topology, chemical composition of the surface, applied pressure and temperature, defects and dopant, which are some of the important factors that strongly affect the hydrogen adsorption in CNTs, should be better understood.

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Reduced Graphene Oxide/Carbon Nanotube Composites as Electrochemical Energy Storage Electrode Applications

Cited by 25 publications

References 31 publications

Supercapacitors based on free-standing reduced graphene oxides/carbon nanotubes hybrid films

Supercapacitors based on free-standing reduced graphene oxides/carbon nanotubes hybrid films

Highly stable binder free CNTs/rGO aerogel electrode for decolouration of methylene blue & palm oil mill effluent via electro-Fenton oxidation process

An Overview of the Recent Progress in Modifications of Carbon Nanotubes for Hydrogen Adsorption

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