Transparent, Flexible Conducting Hybrid Multilayer Thin Films of Multiwalled Carbon Nanotubes with Graphene Nanosheets

Hong, Tae Keun; Lee, Dong Hoon; Choi, Hyun Jung; Shin, Hyeon Suk; Kim, Byeong Su

doi:10.1021/nn100897g

Cited by 314 publications

(195 citation statements)

References 35 publications

(63 reference statements)

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“…Nano-structure architecting of these graphene based flexible papers is one the important methods to solve this problem. There are two common approaches applied including integrating curly or porous GNs into papers or sandwiching fibre like nano material or nano particles between GNs [14][15][16][17][18][19][20][21] .…”

Section: Introductionmentioning

confidence: 99%

Mechanically strong high performance layered polypyrrole nano fibre/graphene film for flexible solid state supercapacitor

Zhao

Shu

et al. 2014

Carbon

108

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Paper like flexible electrode becomes one of the most important research objects recently in request of the fast expanding market of portable electronics. Flexible solid state supercapacitors are shortlisted as one of the most promising energy devices to power electronics with medium to high power density requirements. In this work, we developed a simple but effective way to produce a mechanically strong and electrochemically active RGO/polypyrrole (PPy) fibre paper. A well-bedded microstructure was created with interlaced polypyrrole fibres evenly distributed between the graphene layers. Such microstructure can create enormous amount of pores and therefore provides larger interfaces for charge carrier storage/release. The effects of polypyrrole fibres on the film's morphologies, mechanical properties and electrochemical performance were discussed. A solid state supercapacitor was demonstrated using such paper electrodes and a gel type electrolyte -phosphate acid (H3PO4) infused polyvinyl alcohol (PVA). It showed a high capacitance (345 F g-1) and an excellent cycling stability (9.4% drop after 1000 cycles). infused polyvinyl alcohol (PVA). It showed a high capacitance (345 F g -1 ) and an excellent cycling stability (9.4% drop after 1000 cycles).

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Section: Introductionmentioning

confidence: 99%

Mechanically strong high performance layered polypyrrole nano fibre/graphene film for flexible solid state supercapacitor

Zhao

Shu

et al. 2014

Carbon

108

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“…These differences come from the ionization degree of the ox-MWCNTs and the extent of protonation for GF-NH 2 at various pH values. According to Hong et al [26], the extent of protonation of the NH 2 groups increased as the pH decreased. It is supposed that the lower pH value would result in higher extent of protonation and provide higher charge densities of -NH 3 ?…”

Section: Functionalization Of Mwcntsmentioning

confidence: 97%

Polyamide 6 composites reinforced with glass fibers modified with electrostatically assembled multiwall carbon nanotubes

Zhang

Jin

et al. 2012

J Mater Sci

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Glass fiber-multiwall carbon nanotubes (GFMWCNTs) hybrid preforms were prepared by electrostatic assembly method. Negatively charged MWCNTs by oxidization treatment were directly adsorbed onto the surfaces of positively charged GF to form tunable structure. The thickness and morphology of GF-MWCNTs preforms can be controlled by the assembly pH value and the concentration of oxidized-MWCNTs solution. We demonstrate that GF-MWCNTs preforms have uniform and porous interconnected network structure of MWCNTs on the surfaces of GF using FESEM. The multi-scale composites with the hybrid preforms were prepared by melt compounding. The presence of MWCNTs with porous nanostructure helps in the formation of interpenetrating network with polyamide 6 (PA 6) at the interface layer. As a result, the tensile tests of these multi-scale composites exhibit higher tensile properties in comparison with composites with GF, showing a promising structural composite to replace the traditional GF-reinforced composites with limited improvement of the performance.

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“…[56] Producing seamless exohedral bonding between CNT and graphene [52] or CNT and fullerene [33] (nanobuds) through covalent modification is typically achieved by catalytic reaction processes involving vapour phase reactant molecules. Moreover, drop-cast, [57] spin-cast [58] and dipping [55] methods of these graphitic NMs can produce layered assemblies of NH-based thin films by electrostatic and non-covalent interactions.…”

Section: Carbon-carbon Nanohybrids (Ccnhs)mentioning

confidence: 99%

A critical review of nanohybrids: synthesis, applications and environmental implications

et al. 2014

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Environmental context. Recent developments in nanotechnology have focussed towards innovation and usage of multifunctional and superior hybrid nanomaterials. Possible exposure of these novel nanohybrids can lead to unpredicted environmental fate, transport, transformation and toxicity scenarios. Environmentally relevant emerging properties and potential environmental implications of these newer materials need to be systematically studied to prevent harmful effects towards the aquatic environment and ecology.Abstract. Nanomaterial synthesis and modification for applications have progressed to a great extent in the last decades. Manipulation of the physicochemical properties of a material at the nanoscale has been extensively performed to produce materials for novel applications. Controlling the size, shape, surface functionality, etc. has been key to successful implementation of nanomaterials in multidimensional usage for electronics, optics, biomedicine, drug delivery and green fuel technology. Recently, a focus has been on the conjugation of two or more nanomaterials to achieve increased multifunctionality as well as creating opportunities for next generation materials with enhanced performance. With incremental production and potential usage of such nanohybrids come the concerns about their ecological and environmental effects, which will be dictated by their not-yet-understood physicochemical properties. While environmental implication studies concerning the single materials are yet to give an integrated mechanistic understanding and predictability of their environmental fate and transport, the importance of studying the novel nanohybrids with their multidimensional and complex behaviour in environmental and biological exposure systems are immense. This article critically reviews the literature of nanohybrids and identifies potential environmental uncertainties of these emerging 'horizon materials'.

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Transparent, Flexible Conducting Hybrid Multilayer Thin Films of Multiwalled Carbon Nanotubes with Graphene Nanosheets

Cited by 314 publications

References 35 publications

Mechanically strong high performance layered polypyrrole nano fibre/graphene film for flexible solid state supercapacitor

Mechanically strong high performance layered polypyrrole nano fibre/graphene film for flexible solid state supercapacitor

Polyamide 6 composites reinforced with glass fibers modified with electrostatically assembled multiwall carbon nanotubes

A critical review of nanohybrids: synthesis, applications and environmental implications

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