Graphene‐Based Films with Integrated Strength and Toughness via a Novel Two‐Step Method Combining Gel Casting and Surface Crosslinking

Ye, Shibing; Chen, Bin; Hu, Dingding; Liu, Changzhen; Feng, Jiachun

doi:10.1002/cnma.201600127

Cited by 9 publications

(14 citation statements)

References 54 publications

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“…The interface in the nacre induces multiple toughening mechanism, such as mineral bridging, nanoasperities shearing, organic gluing, and tablet interlocking, [1] as shown in Figure 3. [122][123][124][125][126][127][128] In addition, different interface interactions could be reasonably combined to result in synergistic effect, [111,[129][130][131][132][133][134][135][136][137][138][139] which is similar to the multiple interface interactions in nacre. [48,75,[91][92][93][94] The interfacial crosslinking strategies contain hydrogen bonding, [95][96][97][98][99][100][101][102][103][104][105][106][107][108][109][110][111][112][113][114] ionic bonding, …”

Section: Interfacial Architecture Of Biological Materialsmentioning

confidence: 98%

“…[120] For example, using a kind of synthesized polymer (poly(acrylic acid-co-(5-acrylamido-1,10-phenanthroline)), PAAP), Ye et al [135] fabricated rGO-PAAP nanocomposites through π-π interaction. [120] For example, using a kind of synthesized polymer (poly(acrylic acid-co-(5-acrylamido-1,10-phenanthroline)), PAAP), Ye et al [135] fabricated rGO-PAAP nanocomposites through π-π interaction.…”

Section: π-π Interactionmentioning

confidence: 99%

“…The GO nanosheets are crosslinked into network by Ca 2+ coordination-induced ionic bonding, which could further intertwine the PAM network by the hydrogen bonding between hydroxyl and epoxy groups of GO nanosheets and PAM chains. [135] Copyright 2016, John Wiley and Sons. The mechanical properties of GO-Ca 2+ -PAM hydrogels are closely related to the content of Ca 2+ .…”

Section: Hydrogen Bonding and Ionic Bondingmentioning

confidence: 99%

“…Recently, Ye et al [135] fabricated a kind of integrated strong and tough GANs through synergistic interactions from ionic bonding and π-π interaction. The polymer gel promoter (poly(acrylic acid-co-(5-acrylamido-1,10-phenanthroline)), PAAP) is synthesized, which could promote the gelation of GO through π-π interaction.…”

Section: Ionic Bonding and π-π Interactionmentioning

confidence: 99%

“…[106] Moreover, the electrical conductivity of GANs is associated with the sp 2 conjugated structure and alignment of graphene nanosheets, and the crosslinkers. 76 10.00 - [168] Ionic bonding and π-π interaction rGO-PAAP-Eu 3+ 1.81 2.73 0.96 [135] Hydrogen bonding and covalent bonding rGO-CS 2.60 7.08 0.70 [130] www.advmatinterfaces.de nanosheets, has little effect on the electrical conductivity of GANs. The small metal ions, such as Ni 2+ , [133] Cu 2+ , [138] and Ca 2+ , [81] etc., which could induce ionic bonding with GO [81] π-π interaction rGO-AP-DSS 4.11 6.44 1.32 [119] graphene-py 2 -PEG-py 2 2.93 -0.01 [120] graphene-py-PEG-py 2.57 -0.03 [120] graphene-ph-PEG-ph 1.96 -0.05 [120] rGO-PAAP Hydrogen bonding and π-π interaction rGO-PAPB 2.30 4.52 0.96 [131] GO-SSEBS 1.…”

Section: Conclusion and Future Perspectivementioning

confidence: 99%

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Role of Interface Interactions in the Construction of GO‐Based Artificial Nacres

Wan

Cheng

2018

Adv Materials Inter

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The hierarchical interfacial architecture of nacre inspires the fabrication of novel high performance graphene‐based nanocomposites. Graphene has great promise for applications in aerospace and especially for flexible electronic devices, etc., due to its remarkable mechanical and electrical properties. Thus, it is significant to summarize the role of interface interactions in the construction of nacre‐inspired graphene‐based nanocomposites, which is the distinctive characteristic and important scientific progress of the review. This review first makes a comparison for the interfacial architecture of above biological materials and finds inspiration from nacre to design the interface in graphene‐based nanocomposites, which contains single interface interaction, synergistic interface interactions, and synergistic building blocks. Then, the focus is attached to the effect of different interfacial design strategies on the mechanical and electrical properties of state‐of‐the‐art GO‐based artificial nacres (GANs), including 1D fibers, 2D films, and 3D bulk materials. Additionally, the multifunctional GANs with such functions as fatigue resistance, fire retardant property, and smart nanogating, etc. are also discussed. Moreover, some potential applications and corresponding challenges and solutions of GANs are detailedly summarized. Finally, from the views of theoretical simulation and experimental research, a perspective on the roadmap of GANs in the future is also proposed.

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Section: Interfacial Architecture Of Biological Materialsmentioning

confidence: 98%

Section: π-π Interactionmentioning

confidence: 99%

Section: Hydrogen Bonding and Ionic Bondingmentioning

confidence: 99%

Section: Ionic Bonding and π-π Interactionmentioning

confidence: 99%

Section: Conclusion and Future Perspectivementioning

confidence: 99%

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Role of Interface Interactions in the Construction of GO‐Based Artificial Nacres

Wan

Cheng

2018

Adv Materials Inter

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Strong, Conductive, Foldable Graphene Sheets by Sequential Ionic and π Bridging

et al. 2018

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The goal of this work is to develop an inexpensive low-temperature process that provides polymer-free, high-strength, high-toughness, electrically conducting sheets of reduced graphene oxide (rGO). To develop this process, we have evaluated the mechanical and electrical properties resulting from the application of an ionic bonding agent (Cr ), a π-π bonding agent comprising pyrene end groups, and their combinations for enhancing the performance of rGO sheets. When only one bonding agent was used, the π-π bonding agent is much more effective than the ionic bonding agent for improving both the mechanical and electrical properties of rGO sheets. However, the successive application of ionic bonding and π-π bonding agents maximizes tensile strength, toughness, long-term electrical stability in various corrosive solutions, and resistance to mechanical abuse and ultrasonic dissolution. Using a combination of ionic bonding and π-π bonding agents, high tensile strength (821 MPa), high toughness (20 MJ m ), and electrical conductivity (416 S cm ) were obtained, as well as remarkable retention of mechanical and electrical properties during ultrasonication and mechanical cycling by both sheet stretch and sheet folding, suggesting high potential for applications in aerospace and flexible electronics.

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Coordination‐Driven Hierarchical Assembly of Hybrid Nanostructures Based on 2D Materials

Liu

Zhong

Xie

2019

Small

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nanobelts), 2D materials exhibit exceptional physical properties including large theoretical surface area, tunable electronic properties, high optical transparency, and excellent mechanical properties. [2] However, the strong re-stacking tendency of 2D materials caused by van der Waals interaction may result in serious loss of surface area, which inevitably weakens their unique properties. Besides, 2D materials always show intrinsic deficiencies for specific applications, despite the merits mentioned above. As a typical example, TMDs possess high theoretical specific capacities for lithium-ion storage but exhibit unsatisfied cyclability and rate capability in practice, because of their aggregation, low conductivity as well as huge volume expansion during lithium-ion insertion/extraction. [3] One effective way to solve these problems is to construct hybrid nanostructures based on 2D materials. [4][5][6][7][8] Hybrid nanostructures, as a class of composite materials, are composed of two or more nanostructured building blocks. [9,10] Hybrid nanostructures not only can energetically combine the intriguing merits and overwhelm the deficiencies of each building block, but also may generate new functions and properties. [3][4][5][6][7][8][11][12][13] These advantages make hybrid nanostructures based on 2D materials highly promising for practical applications with high performance. [14][15][16][17][18] Regarding the multicomponent composition of hybrid nanostructures, the interfacial interaction between the building blocks lays the foundation for structural and morphological stability, thereby influencing the functions and properties of the resulting hybrid nanostructures. [19][20][21][22] In this sense, the rational design and construction of reliable interfacial interaction for hybrid nanostructures are not only important for achieving improved performance, but also critical for understanding the fundamentals of structureproperty relationship.Generally, there are five types of interfacial interactions, i.e., covalent bond, coordination bond, hydrogen bond, π-π interaction, and electrostatic interaction. [19][20][21][22] Covalent bond and coordination bond are much stronger than the other three in terms of bond energy, so the former two are more favorable for constructing hybrid nanostructures with reliable interfacial interaction. [19] However, most 2D materials are chemically inert, which means the covalent modification is not suitable for them. Alternatively, there are coordination atoms in most of 2D materials and their derivatives, and hence coordination 2D materials have received tremendous scientific and engineering interest due to their remarkable properties and broad-ranging applications such as energy storage and conversion, catalysis, biomedicine, electronics, and so forth. To further enhance their performance and endow them with new functions, 2D materials are proposed to hybridize with other nanostructured building blocks, resulting in hybrid nanostructures with various morphologies and structures. The prop...

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Graphene‐Based Films with Integrated Strength and Toughness via a Novel Two‐Step Method Combining Gel Casting and Surface Crosslinking

Cited by 9 publications

References 54 publications

Role of Interface Interactions in the Construction of GO‐Based Artificial Nacres

Role of Interface Interactions in the Construction of GO‐Based Artificial Nacres

Strong, Conductive, Foldable Graphene Sheets by Sequential Ionic and π Bridging

Coordination‐Driven Hierarchical Assembly of Hybrid Nanostructures Based on 2D Materials

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