Electrically Conductive “Alkylated” Graphene Paper via Chemical Reduction of Amine‐Functionalized Graphene Oxide Paper

Compton, Owen C.; Dikin, Dmitriy A.; Putz, Karl W.; Brinson, L. Catherine; Nguyen, SonBinh T.

doi:10.1002/adma.200902069

Cited by 586 publications

(402 citation statements)

References 31 publications

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“…Accordingly, the design space (Fig. 5) will include type (for example, carboxyl, hydroxyl, epoxy) and degree of surface functionalization (density of anchors, for example, carbon to oxygen ratio in graphene oxide 51,52 ).…”

Section: Discussionmentioning

confidence: 99%

Tablet-level origin of toughening in abalone shells and translation to synthetic composite materials

et al. 2011

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Nacre, the iridescent material in seashells, is one of many natural materials employing hierarchical structures to achieve high strength and toughness from relatively weak constituents. Incorporating these structures into composites is appealing as conventional engineering materials often sacrifice strength to improve toughness. Researchers hypothesize that nacre's toughness originates within its brick-and-mortar-like microstructure. Under loading, bricks slide relative to each other, propagating inelastic deformation over millimeter length scales. This leads to orders-of-magnitude increase in toughness. Here, we use in situ atomic force microscopy fracture experiments and digital image correlation to quantitatively prove that brick morphology (waviness) leads to transverse dilation and subsequent interfacial hardening during sliding, a previously hypothesized dominant toughening mechanism in nacre. By replicating this mechanism in a scaled-up model synthetic material, we find that it indeed leads to major improvements in energy dissipation. Ultimately, lessons from this investigation may be key to realizing the immense potential of widely pursued nanocomposites.

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Section: Discussionmentioning

confidence: 99%

Tablet-level origin of toughening in abalone shells and translation to synthetic composite materials

et al. 2011

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“…Reduction favours sheet crystallization and the formation of graphite. In order to avoid re-stacking of the layers, grafting molecules such as hexylamine, [ 72 ] or phenyl isocyanate. [ 73 , 74 ] on the surface are commonly used.…”

Section: Electrical Propertiesmentioning

confidence: 99%

Interphases in Graphene Polymer‐based Nanocomposites: Achievements and Challenges

et al. 2011

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Graphene constitutes a two dimensional sp2 hybridized carbon material with outstanding electrical and mechanical properties. To date, novel methods for producing large quantities of graphene and its derivatives (doped or functionalized graphenes, nanoribbons and nanoplatelets) are emerging, and research dedicated to the fabrication of polymer nanocomposites using graphenes has started. In this Research News, we summarize the synthesis and properties of graphene and its derivatives, and provide an overview of the latest research dedicated to the fabrication of polymer composites for different applications, including mechanical, electrical, optical and thermal. Some of the recently fabricated composites exhibit outstanding properties, however, it is vital to understand the chemistry and physics of the interphases established between the polymer and the graphene surfaces. The challenges in the fabrication of super robust and highly conducting composites using graphenes are also discussed. It is believed that graphene‐based polymer composites will result in commercial products if their interphases and reactivity are carefully controlled.

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“…In fact, flow‐induced assembly method was also extended to other readily dispersed graphene sheets either in aqueous solution or in some organic solvents such as propylene carbonate 34, 35, 36, 37, 38, 39, 40. For example, through vacuum filtration, 1‐pyrenebutyrate‐modified rGO aqueous dispersion could form CMG films with high conductivity and good mechanical performance 34.…”

Section: State‐of‐the‐art Self‐assembly Strategies Of Graphene Architmentioning

confidence: 99%

Self‐Assembled Graphene‐Based Architectures and Their Applications

Yuan

Xiao

et al. 2017

Advanced Science

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Due to unique planar structures and remarkable thermal, electronic, and mechanical properties, chemically modified graphenes (CMGs) such as graphene oxides, reduced graphene oxides, and the related derivatives are recognized as the attractive building blocks for “bottom‐up” nanotechnology, while self‐assembly of CMGs has emerged as one of the most promising approaches to construct advanced functional materials/systems based on graphene. By virtue of a variety of noncovalent forces like hydrogen bonding, van der Waals interaction, metal‐to‐ligand bonds, electrostatic attraction, hydrophobic–hydrophilic interactions, and π–π interactions, the CMGs bearing various functional groups are highly desirable for the assemblies with themselves and a variety of organic and/or inorganic species which can yield various hierarchical nanostructures and macroscopic composites endowed with unique structures, properties, and functions for widespread technological applications such as electronics, optoelectronics, electrocatalysis/photocatalysis, environment, and energy storage and conversion. In this review, significant recent advances concerning the self‐assembly of CMGs are summarized, and the broad applications of self‐assembled graphene‐based materials as well as some future opportunities and challenges in this vibrant area are elucidated.

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Electrically Conductive “Alkylated” Graphene Paper via Chemical Reduction of Amine‐Functionalized Graphene Oxide Paper

Cited by 586 publications

References 31 publications

Tablet-level origin of toughening in abalone shells and translation to synthetic composite materials

Tablet-level origin of toughening in abalone shells and translation to synthetic composite materials

Interphases in Graphene Polymer‐based Nanocomposites: Achievements and Challenges

Self‐Assembled Graphene‐Based Architectures and Their Applications

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