Ultratough nacre-inspired epoxy–graphene composites with shape memory properties

Huang, Chuanjin; Peng, Jingsong; Cheng, Yiren; Zhao, Qian; Du, Yi; Dou, S. X.; Tomsia, Antoni P.; Wagner, H. Daniel; Jiang, Lei; Cheng, Qunfeng

doi:10.1039/c8ta10725d

Cited by 56 publications

(31 citation statements)

References 68 publications

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“…In general, the RS behavior and switching mechanism are influenced by the fabrication methods and hybridization state of graphene-based material dielectric layers, the deposition techniques of electrode layers, and the choice of TE and BE materials. Some studies agreed that the structure modification of the entire dielectric layer results in a comprehensive effect on RS behavior [123,131,140]. However, other studies considered that the RS behavior is a regional phenomenon, as…”

Section: Oxygen Ion-based Switching Mechanismmentioning

confidence: 99%

Memristive Non-Volatile Memory Based on Graphene Materials

Shen

Zhao

et al. 2020

Micromachines

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Resistive random access memory (RRAM), which is considered as one of the most promising next-generation non-volatile memory (NVM) devices and a representative of memristor technologies, demonstrated great potential in acting as an artificial synapse in the industry of neuromorphic systems and artificial intelligence (AI), due its advantages such as fast operation speed, low power consumption, and high device density. Graphene and related materials (GRMs), especially graphene oxide (GO), acting as active materials for RRAM devices, are considered as a promising alternative to other materials including metal oxides and perovskite materials. Herein, an overview of GRM-based RRAM devices is provided, with discussion about the properties of GRMs, main operation mechanisms for resistive switching (RS) behavior, figure of merit (FoM) summary, and prospect extension of GRM-based RRAM devices. With excellent physical and chemical advantages like intrinsic Young’s modulus (1.0 TPa), good tensile strength (130 GPa), excellent carrier mobility (2.0 × 105 cm2∙V−1∙s−1), and high thermal (5000 Wm−1∙K−1) and superior electrical conductivity (1.0 × 106 S∙m−1), GRMs can act as electrodes and resistive switching media in RRAM devices. In addition, the GRM-based interface between electrode and dielectric can have an effect on atomic diffusion limitation in dielectric and surface effect suppression. Immense amounts of concrete research indicate that GRMs might play a significant role in promoting the large-scale commercialization possibility of RRAM devices.

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Section: Oxygen Ion-based Switching Mechanismmentioning

confidence: 99%

Memristive Non-Volatile Memory Based on Graphene Materials

Shen

Zhao

et al. 2020

Micromachines

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“…Adapted with permission. [127,128] Copyright 2019, Royal Society of Chemistry and Elsevier Inc. c) Nacre-inspired graphene nanoplateletphotocurable resin (MJ) composite hierarchical structure obtained by electrically assisted 3D printing. Adapted with permission.…”

Section: (10 Of 26)mentioning

confidence: 99%

“…[126] In this way, agglomeration of the graphene nanofillers can be avoided, and the toughening mechanism follows that of natural nacre with the efficient stress relaxation coming from crack bridging, branching, and deflection. Using a different type of epoxy can lead to additional shape memory properties [127] or self-monitoring abilities [128] as well as improved toughness. Otherwise, self-monitoring capabilities can be introduced by functionalizing the GO nanosheets to achieve crack-dependent electrical response.…”

Section: (11 Of 26)mentioning

confidence: 99%

Bioinspired Design of Graphene‐Based Materials

Christian

Mazzaro

Morandi

2020

Adv Funct Materials

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It can be difficult to know where to begin when considering the research opportunities of a material with such outstanding potential as graphene. When searching for a “killer application,” the researcher often neglects to query the world around them, forgetting that nature has been evolving for billions of years to elegantly solve every day problems. Bioinspiration is an intelligent strategy to nucleate new ideas and speed up the innovation process by providing ready‐made prototypes. Graphene is uniquely placed to take advantage of this approach thanks to its superlative properties and versatile nature. In this review, the state‐of‐the‐art in the bioinspired design of graphene‐based materials has been analyzed, and three distinct sources of inspiration have been identified: natural functions, such as adhesion and actuation; natural structures, such as layers and pores; and natural processes, such as surface functionalization and biomineralization. Implementing this philosophy into further graphene research will provide new ways to solve problems and suggest novel applications that may not otherwise be considered.

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“…In addition to microwave-active shape-memory materials, photo/thermal-active shape-memory material is also one of the materials that facilitate remote driving (Herath et al, 2019;Huang et al, 2019;Li et al, 2019;Kang et al, 2019). Photo/thermal actuators are made by doping fillers in a photo/thermal-active shape-memory polymer matrix (Lu et al, 2014;Yi et al, 2014).…”

Section: Other Types Of Graphene/epoxy Compositesmentioning

confidence: 99%

Graphene Nanoarchitectonics: A New Material Horizon for Reinforcement of Sustainable Polymers

et al. 2020

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Using nanoscience to solve the issues that limit the development of a sustainable society is one of the most important topics at present. Sustainable polymers play an important role in the construction of a sustainable society, but its large-scale application is usually limited by the poor mechanical and shape-memory properties of the commonly used epoxy resin. The utilization of nanoarchitectures to improve the shape-memory performance of composite materials is an effective approach. Graphene, among the used reinforcement materials for epoxy resin, is undoubtedly a fascinating example. In this paper, the shape-memory and mechanical properties of graphene-modified epoxy resins are described respectively for different response types. In this minireview, we present an overview of the research results of graphene nanoarchitectonics in the modification of shape-memory epoxy resin composites. Besides, this paper has reviewed the properties of different types of graphene/epoxy composites, looking forward to the development of graphene/epoxy composites and future prospects.

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Ultratough nacre-inspired epoxy–graphene composites with shape memory properties

Abstract: Nacre-inspired epoxy–graphene composites with unique fracture toughness and thermo or electro-active shape memory properties are engineered via freeze-casting.

Cited by 56 publications

References 68 publications

Memristive Non-Volatile Memory Based on Graphene Materials

Memristive Non-Volatile Memory Based on Graphene Materials

Bioinspired Design of Graphene‐Based Materials

Graphene Nanoarchitectonics: A New Material Horizon for Reinforcement of Sustainable Polymers

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