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相关概念视频

Network Covalent Solids02:18

Network Covalent Solids

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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Preparation of Carbon Nanosheets at Room Temperature
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Published on: March 8, 2016

石墨烯:现状和前景

A K Geim1

  • 1Manchester Centre for Mesoscience and Nanotechnology, University of Manchester, Oxford Road, Manchester M13 9PL, UK.

Science (New York, N.Y.)
|June 23, 2009
PubMed
概括

石墨烯是最薄最坚固的材料,具有卓越的电子和热性能. 这篇评论探讨了其最近的进展和材料科学未来的研究方向.

科学领域:

  • 材料科学 材料科学 材料科学
  • 凝聚物质物理学 凝聚物质物理学
  • 量子力学就是量子力学.

背景情况:

  • 石墨烯被认为是已知的最薄的材料,具有特殊的机械强度.
  • 它表现出独特的电子特性,包括高电荷载体移动性和零有效质量.
  • 石墨烯表现出优越的导热性,刚性和不透性.

研究的目的:

  • 审查石墨烯研究的最新进展.
  • 为了分析石墨烯的当前应用.
  • 确定石墨烯的未来研究和开发轨迹.

主要方法:

  • 关于石墨烯的最新科学出版物的文献综述.
  • 对实验数据的分析和对石墨烯性质的理论研究.
  • 在石墨烯的研究和应用趋势的综合.

主要成果:

  • 石墨烯具有独特的电子传输特性,由迪拉克式方程描述.
  • 它可以在实验室环境中研究相对论量子现象.
  • 石墨烯的特性包括高电流密度的可持续性和气体透性.

结论:

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  • 由于其非凡的特性,石墨烯仍然是激烈研究的主题.
  • 未来的研究很可能会专注于利用其在各种技术应用中的潜力.
  • 对其量子现象的进一步探索可能会导致新的科学发现.