Synergistically toughening nacre-like graphene nanocomposites via gel-film transformation

Gong, Shanshan; Zhang, Qi; Wang, Ruliang; Jiang, Lei; Cheng, Qunfeng

doi:10.1039/c7ta03535g

Cited by 44 publications

(24 citation statements)

References 39 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%

“…Apart from alkaline-earth metal ions, the transition-metal ions, such as Cu 2+ , [138] Ni 2+ , [133] Zn 2+ , [116,166] and Mn 2+ , [136] etc., are also effective ionic bonders to strengthen the GANs. Recently, Wan et al [133] introduced Ni 2+ into adjacent GO nanosheets to obtain GO-Ni 2+ nanocomposites, which were then reduced into rGO-Ni 2+ nanocomposites.…”

Section: Ionic Bondingmentioning

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: Ionic Bondingmentioning

confidence: 99%

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

Wan

Cheng

2018

Adv Materials Inter

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“…Similarly, rGO sheets made at low temperature by modulating GO chemical structure have 1.9 times higher electrical conductivity than do SBG‐III sheets, but a lower strength (614 MPa) and toughness (14.9 MJ m −3 ). Moreover, as shown in Figure e, the tensile strength and toughness for the SBG‐III sheet are higher than for previously reported rGO sheets bridged through various bonding types, except for our very recently reported rGO sheets that are sequentially bridged by π–π bonding and covalent bonding agents . The detailed mechanical properties of these rGO sheets are tabulated in Table S10 (Supporting Information).…”

mentioning

confidence: 67%

“…On the other hand, interfacial cross‐linking can enable highly efficient load transfer between graphene interlayers, resulting in high mechanical properties . Moreover, various different interfacial interactions can be integrated into the graphene sheets, including hydrogen, ionic, π–π, and covalent bonding . However, the resulting graphene sheets generally show low electrical conductivities due to disruption of electron transport between graphene nanosheets by the cross‐linking agents .…”

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confidence: 99%

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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“…To date, various methods have been developed to integrate graphene sheets into 1D, 2D, and 3D macroscopic assemblies, including wet‐spinning, filtration, and hydrothermal treatment . Compared with graphene macroscopic assemblies prepared from graphene solution using conventional methods mentioned above, gel‐like graphene macroscopic assemblies have advantages in the construction of arbitrarily predesigned architectures in both microscopic and macroscopic scales without special reaction conditions . For example, in the case of preparation of graphene films from graphene solution, traditional methods including filtration, dip coating, and spin coating are time‐consuming and complicated while the preparation from gel‐like assemblies can be achieved by simply pressing.…”

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confidence: 99%

Synthetic Multifunctional Graphene Composites with Reshaping and Self‐Healing Features via a Facile Biomineralization‐Inspired Process

et al. 2018

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Since graphene is a type of 2D carbon material with excellent mechanical, electrical, thermal, and optical properties, the efficient preparation of graphene macroscopic assemblies is significant in the potentially large-scale application of graphene sheets. Conventional preparation methods of graphene macroscopic assemblies need strict conditions, and, once formed, the assemblies cannot be edited, reshaped, or recycled. Herein, inspired by the biomineralization process, a feasible approach of shapeable, multimanipulatable, and recyclable gel-like composite consisting of graphene oxide/poly(acrylic acid)/amorphous calcium carbonate (GO-PAA-ACC) is designed. This GO-PAA-ACC material can be facilely synthesized at room temperature with a cross-linking network structure formed during the preparation process. Remarkably, it is stretchable, malleable, self-healable, and easy to process in the wet state, but tough and rigid in the dried state. In addition, these two states can be readily switched by adjusting the water content, which shows recyclability and can be used for 3D printing to form varied architectures. Furthermore, GO-PAA-ACC can be functionalized or processed to meet a variety of specific application requirements (e.g., energy-storage, actuators). The preparation method of GO-PAA-ACC composite in this work also provides a novel strategy for the versatile macroscopic assembly of other materials, which is low-cost, efficient, and convenient for broad application.

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Synergistically toughening nacre-like graphene nanocomposites via gel-film transformation

Abstract: The gold standard of natural nacre provides the inspiration for assembling bioinspired nanocomposites.

Cited by 44 publications

References 39 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

Synthetic Multifunctional Graphene Composites with Reshaping and Self‐Healing Features via a Facile Biomineralization‐Inspired Process

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