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首页> 外文期刊>Advanced Functional Materials >Superior Fatigue Resistant Bioinspired Graphene-Based Nanocomposite via Synergistic Interfacial Interactions
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Superior Fatigue Resistant Bioinspired Graphene-Based Nanocomposite via Synergistic Interfacial Interactions

机译：通过协同界面相互作用产生的优异的抗疲劳生物启发石墨烯基纳米复合材料

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摘要

Excellent fatigue resistance is a prerequisite for flexible energy devices to achieve high and stable performance under repeated deformation state. Inspired by the sophisticated interfacial architecture of nacre, herein a super fatigue-resistant graphene-based nanocomposite with integrated high tensile strength and toughness through poly(dopamine)-nickel ion (Ni2+) chelate architecture that mimics byssal threads is demonstrated. These kind of synergistic interfacial interactions of covalent and ionic bonding effectively suppress the crack propagation in the process of fatigue testing, resulting in superhigh fatigue life of this bioinspired graphene-based nanocomposite (BGBN). In addition, the electrical conductivity is well kept after fatigue testing. The proposed synergistic interfacial interactions could serve as a guideline for fabricating high-performance multifunctional BGBNs with promising applications in flexible energy devices, such as flexible electrodes for supercapacitors and lithium batteries, etc.
机译：优异的抗疲劳性是柔性能量装置在反复变形状态下获得高而稳定性能的前提。受珍珠层复杂的界面体系结构的启发，本文展示了一种超级耐疲劳石墨烯基纳米复合材料，该复合材料通过模拟底基线的聚（多巴胺）-镍离子（Ni2 +）螯合物体系结构具有高集成的高拉伸强度和韧性。这种共价键和离子键的协同界面相互作用有效地抑制了疲劳测试过程中的裂纹扩展，从而使这种生物启发的石墨烯基纳米复合材料（BGBN）的疲劳寿命超高。此外，疲劳测试后，电导率保持良好。拟议的协同界面相互作用可作为制备高性能多功能BGBN的指南，在柔性能源设备中具有广阔的应用前景，例如用于超级电容器和锂电池的柔性电极等。

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  • 来源
    《Advanced Functional Materials》 |2017年第10期|1605636.1-1605636.7|共7页
  • 作者

    Wan Sijie; Xu Feiyu; Jiang Lei; Cheng Qunfeng;

  • 作者单位

    Beihang Univ, Sch Chem & Environm, Minist Educ, Key Lab Bioinspired Smart Interfacial Sci & Techn, Beijing 100191, Peoples R China;

    Beihang Univ, Sch Chem & Environm, Minist Educ, Key Lab Bioinspired Smart Interfacial Sci & Techn, Beijing 100191, Peoples R China;

    Beihang Univ, Sch Chem & Environm, Minist Educ, Key Lab Bioinspired Smart Interfacial Sci & Techn, Beijing 100191, Peoples R China;

    Beihang Univ, Sch Chem & Environm, Minist Educ, Key Lab Bioinspired Smart Interfacial Sci & Techn, Beijing 100191, Peoples R China;

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  • 正文语种 eng
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  • 关键词

    bioinspired; fatigue; graphene; nanocomposites; synergistic interfacial interactions;

    机译：生物启发;疲劳;石墨烯;纳米复合材料;协同界面相互作用;

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