Monolithic carbons with spheroidal and hierarchical pores produced by the linkage of functionalized graphene sheets

Tao, Ying; Kong, Debin; Zhang, Chen; Lv, Wei; Wang, Mingxi; Li, Baohua; Huang, Zheng‐Hong; Kang, Feiyu; Yang, Quan‐Hong

doi:10.1016/j.carbon.2013.12.003

Cited by 94 publications

(69 citation statements)

References 38 publications

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“…For example, Tao et al [21] prepared a three-dimensional monolithic carbon material through the linkage of functionalised graphene sheets under hydrothermal conditions. The abundant oxygen-containing groups from PVA and GO surface will both react via a dehydration reaction, and interact by hydrogen bonding as the hydrogel is forming.…”

Section: Introductionmentioning

confidence: 99%

Removal of methylene blue from water by cellulose/graphene oxide fibres

Chen

et al. 2016

Journal of Experimental Nanoscience

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A novel and efficient cellulose/graphene oxide (CGO) fibre adsorbent was prepared by wet-spinning technique. The morphology and physicochemical properties of the CGO fibres were characterised by scanning electron microscope (SEM), Fourier transform infrared spectrometer, and thermo-gravimetric analysis. The equilibrium adsorption data were well fitted to the Langmuir models, and the adsorption capacity calculated from the Langmuir model reached 480.77 mg/g at 318 K. The adsorption kinetic studies revealed that pseudo-second-order model best describes the adsorption kinetic data. The thermodynamic parameters indicated that the adsorption was an endothermic and spontaneous process. Furthermore, the CGO fibre, which is very stable and easily separable, can be recycled with a dilute NaOH solution wash, retaining over 93% of the adsorption capacity after recycling three times.

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Section: Introductionmentioning

confidence: 99%

Removal of methylene blue from water by cellulose/graphene oxide fibres

Chen

et al. 2016

Journal of Experimental Nanoscience

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“…3D graphene monoliths with interpenetrated ion-diffusion channels and a continuous electron transfer network can be easily used as an electrochemical reacting framework ( Fig. 3a-d) [30]. There are many studies that directly use a graphene macroform as a high-performance electrode in energy storage systems, especially supercapacitors (Fig.…”

Section: Macroformsmentioning

confidence: 99%

“…a Schematic for the preparation of reduced expanded porous graphene macroform (r-EPGM). b Nitrogen adsorption/desorption isotherms, c α s plots and d pore size distributions of graphene sheets (GNS), reduced porous graphene macroform (r-PGM), reduced expanded porous graphene macroform (r-EPGM), and activated carbons (AC) [30]. Copyright (2014) Elsevier.…”

Section: 3 Approaches For Preparing Graphene-derived Carbonsmentioning

confidence: 99%

Engineering Graphenes from the Nano- to the Macroscale for Electrochemical Energy Storage

Han

Wei

Zhang

et al. 2018

Electrochem. Energ. Rev.

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Carbon is a key component in current electrochemical energy storage (EES) devices and plays a crucial role in the improvement in energy and power densities for the future EES devices. As the simplest carbon and the basic unit of all sp 2 carbons, graphene is widely used in EES devices because of its fascinating and outstanding physicochemical properties; however, when assembled in the macroscale, graphene-derived materials do not demonstrate their excellence as individual sheets mostly because of unavoidable stacking. This review proposal shows to engineer graphene nanosheets from the nano-to the macroscale in a well-designed and controllable way and discusses how the performance of the graphene-derived carbons depends on the individual graphene sheets, nanostructures, and macrotextures. Graphene-derived carbons in EES applications are comprehensively reviewed with three representative devices, supercapacitors, lithium-ion batteries, and lithium-sulfur batteries. The review concludes with a comment on the opportunities and challenges for graphene-derived carbons in the rapidly growing EES research area.

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“…21 Thus, graphene oxide (GO), a "shining star" material, has been widely investigated as a suitable support for MnO 2 loading. Functionalized graphene, one of the most important derivatives of graphene, is certainly key for the systematic development of graphene, which promotes pseudocapacitance.…”

Section: -20mentioning

confidence: 99%

Synthesis of 1,3-dicarbonyl-functionalized reduced graphene oxide/MnO₂ composites and their electrochemical properties as supercapacitors

Xing

et al. 2018

RSC Adv.

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A novel 1,3-dicarbonyl-functionalized reduced graphene oxide (rDGO) was prepared by N-(4-aminophenyl)-3-oxobutanamide interacting with the epoxy and carboxyl groups of graphene oxide. The high-performance composite supercapacitor electrode material based on MnO 2 nanoparticles deposited onto the rDGO sheet (DGM) was fabricated by a hydrothermal method. The morphology and microstructure of the composites were characterized by field-emission scanning electron microscopy, transmission electron microscopy, Raman microscopy and X-ray photoelectron spectroscopy. The obtained results indicated that MnO 2 was successfully deposited on rDGO surfaces. The formed composite electrode materials exhibit excellent electrochemical properties. A specific capacitance of 267.4 F g À1 was obtained at a current density of 0.5 A g À1 in 1 mol L À1 H 2 SO 4 , while maintaining high cycling stability with 97.7% of its initial capacitance after 1000 cycles at a current density of 3 A g À1.These encouraging results are useful for potential energy storage device applications in highperformance supercapacitors.

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Monolithic carbons with spheroidal and hierarchical pores produced by the linkage of functionalized graphene sheets

Cited by 94 publications

References 38 publications

Removal of methylene blue from water by cellulose/graphene oxide fibres

Removal of methylene blue from water by cellulose/graphene oxide fibres

Engineering Graphenes from the Nano- to the Macroscale for Electrochemical Energy Storage

Synthesis of 1,3-dicarbonyl-functionalized reduced graphene oxide/MnO₂ composites and their electrochemical properties as supercapacitors

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Monolithic carbons with spheroidal and hierarchical pores produced by the linkage of functionalized graphene sheets

Cited by 94 publications

References 38 publications

Removal of methylene blue from water by cellulose/graphene oxide fibres

Removal of methylene blue from water by cellulose/graphene oxide fibres

Engineering Graphenes from the Nano- to the Macroscale for Electrochemical Energy Storage

Synthesis of 1,3-dicarbonyl-functionalized reduced graphene oxide/MnO2 composites and their electrochemical properties as supercapacitors

Contact Info

Product

Resources

About

Synthesis of 1,3-dicarbonyl-functionalized reduced graphene oxide/MnO₂ composites and their electrochemical properties as supercapacitors