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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

Updated: Jul 16, 2025

Microfluidic-based Synthesis of Covalent Organic Frameworks COFs: A Tool for Continuous Production of COF Fibers and Direct Printing on a Surface
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高导电性的共价有机框架膜

Rui Wang1, Hang Lyu2, Gerald Siu Hang Poon Ho1

  • 1Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Hong Kong SAR, 999077, China.

Small (Weinheim an der Bergstrasse, Germany)
|September 13, 2023
PubMed
概括

具有金属类导电性的化学惰性有机网络对于先进的电子技术至关重要. 这项研究开发了基于铜-协调-化-甲和 antraquinone 的超导体共价有机框架 (COF) 薄膜.

关键词:
运输费 运输费 运输费 运输费协同有机的框架是共价有机的.密度函数理论密度函数理论聚氨酸氨酸的宏循环.

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Last Updated: Jul 16, 2025

Microfluidic-based Synthesis of Covalent Organic Frameworks COFs: A Tool for Continuous Production of COF Fibers and Direct Printing on a Surface
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科学领域:

  • 材料科学 材料科学 材料科学
  • 有机电子 有机电子
  • 纳米技术纳米技术

背景情况:

  • 联有机框架 (COF) 为各种应用提供高晶度,多孔性和可调的功能.
  • 碳氧化的电导率有限阻碍了它们在有机电子,催化和储能领域的广泛使用.
  • 在有机材料中实现金属类导电性是下一代技术的关键目标.

研究的目的:

  • 开发用于先进电子和催化应用的超导电共价有机框架 (COF) 薄膜.
  • 为了克服现有的COF材料的导电性限制.
  • 建立COF导电性和收费运输的新基准.

主要方法:

  • 使用蒸汽辅助方法合成铜-协调-化-甲和基于 antraquinone 的 COF (CuPc-AQ-COF) 薄膜.
  • 开发的COF薄膜的电导率和霍尔运动的特征.
  • 使用密度函数理论 (DFT) 分析来理解电荷转移机制.

主要成果:

  • 开发的CuPc-AQ-COF薄膜在室温下表现出超高的电导率 (1.53 × 10^3 S m^-1) 和霍尔运动性 (6.02 × 10^2 cm^2 V^-1 s^-1).
  • 导电性和移动性值达到金属水平,为COF创造了新的纪录.
  • DFT的分析证实了一个高效的捐赠者-接受者系统,促进了COF结构内的重大负担转移.

结论:

  • 开发的CuPc-AQ-COF薄膜表现出前所未有的导电性和移动性,为它们在电子,催化和储能领域的应用铺平了道路.
  • 蒸汽辅助合成和合理的分子设计对于实现具有增强电子性质的高质量晶体COF至关重要.
  • 这些发现代表了导电有机材料和COF应用领域的重大进展.