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相关概念视频

Network Covalent Solids02:18

Network Covalent Solids

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Network covalent solids contain a three-dimensional network of covalently bonded atoms as found in the crystal structures of nonmetals like diamond, graphite, silicon, and some covalent compounds, such as silicon dioxide (sand) and silicon carbide (carborundum, the abrasive on sandpaper). Many minerals have networks of covalent bonds.
To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...
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相关实验视频

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Fabrication of Three-Dimensional Graphene-Based Polyhedrons via Origami-Like Self-Folding
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基于氧化石烯的大面积动态共价接口.

Boyi Situ1, Zhe Zhang1, Liang Zhao1

  • 1College of Physics Science and Technology & Microelectronics Industry Research Institute, Yangzhou University, Jiangsu 225009, China. zhaoliang@yzu.edu.cn.

Nanoscale
|November 2, 2023
PubMed
概括

本研究介绍了氧化石墨烯材料上的大面积动态共价接口 (LDCI),为先进的自适应应用实现远程化学迁移. 这些接口在传感和药物输送等领域提高了材料性能.

科学领域:

  • 材料科学 材料科学 材料科学
  • 化学 化学 化学

背景情况:

  • 动态材料通过可逆的结构变化适应外部刺激.
  • 动态共价材料 (DCM) 使用可逆动态共价键 (DCB) 来实现自我修复和形状记忆性能.
  • 目前的DCB动态通常仅限于纳米级.

研究的目的:

  • 探索通过在氧化石墨烯 (GO) 接口上的动态共价反应实现远程化学迁移.
  • 引入大面积动态共价接口 (LDCI) 的概念.
  • 总结LDCI的战略和应用.

主要方法:

  • 关于基于DCB的可逆反应的文献综述.
  • 分析在GO接口上实现远程迁移的策略.
  • 对接口工程技术的讨论.

主要成果:

  • 在GO接口上通过空间连接的DCB反应来证明LDCI.
  • 确定有效的策略:吸附水,界面曲率和金属基板支.
  • 在水分离和湿度传感方面的潜在应用概述.

结论:

  • LDCI能够实现长距离的化学成分迁移,克服了DCB的纳米尺度限制.

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Synthesis and Functionalization of 3D Nano-graphene Materials: Graphene Aerogels and Graphene Macro Assemblies
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Synthesis and Functionalization of 3D Nano-graphene Materials: Graphene Aerogels and Graphene Macro Assemblies
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  • 最低发达国家提供了开发具有增强动态特性的先进材料的途径.
  • 未来的前景包括在其他2D材料上实现LDCI,用于诸如药物输送和生物传感等应用.