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相关概念视频

Molecular and Ionic Solids02:54

Molecular and Ionic Solids

16.7K
Crystalline solids are divided into four types: molecular, ionic, metallic, and covalent network based on the type of constituent units and their interparticle interactions.
Molecular Solids
Molecular crystalline solids, such as ice, sucrose (table sugar), and iodine, are solids that are composed of neutral molecules as their constituent units. These molecules are held together by weak intermolecular forces such as London dispersion forces, dipole-dipole interactions, or hydrogen bonds, which...
16.7K
Metallic Solids02:37

Metallic Solids

18.1K
Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
18.1K
Network Covalent Solids02:18

Network Covalent Solids

13.3K
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...
13.3K
Types Of Superconductors01:28

Types Of Superconductors

912
A superconductor is a substance that offers zero resistance to the electric current when it drops below a critical temperature. Zero resistance is not the only interesting phenomenon as materials reach their transition temperatures. A second effect is the exclusion of magnetic fields. This is known as the Meissner effect. A light, permanent magnet placed over a superconducting sample will levitate in a stable position above the superconductor. High-speed trains that levitate on strong...
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Determining the Mechanical Strength of Ultra-Fine-Grained Metals
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超高兰含量固态离子导体具有机械卓越的机械卓越性.

Peng Ding1, Kai Zhao2, Chi Wang2

  • 1State Key Laboratory of Fluid Power and Mechatronic Systems, Key Laboratory of Soft Machines and Smart Devices of Zhejiang Province, Center for X-Mechanics, Department of Engineering Mechanics, Zhejiang University, Hangzhou 310027, China.

Carbohydrate polymers
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概括

这项研究引入了基于生物质的新型固态离子导体,使用西兰,这是灵活电子的可持续替代品. 这些基于西兰的材料提供了卓越的机械强度和离子导电性,推进了环保的电子元件.

关键词:
生物质是生物质中的一部分.深度浸泡性溶剂 (DES) 是一种深度浸泡性溶剂.离子导体 是一种离子导体.克西兰的利用方法

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科学领域:

  • 材料科学 材料科学 材料科学
  • 聚合物化学 聚合物化学
  • 可持续能源 可持续能源

背景情况:

  • 固态离子导体对于灵活的电子产品至关重要,但目前的石油基材料引发了环境问题.
  • 生物质导体提供了可持续性,但往往缺乏机械强度.
  • 兰是一种普遍存在的半纤维素,对先进材料具有理想的物理化学特性.

研究的目的:

  • 为了开发高性能,基于生物质的固态离子导体,使用xylan.
  • 解决现有的离子导体在环境影响和机械性能方面的局限性.
  • 探索西兰作为柔性电子材料中有价值的组件的潜力.

主要方法:

  • 使用深度环氧溶剂 (DES) 进行高效的西兰溶解和加工.
  • 制造的无液体盐弹性体 (LFLSE) 含有超高的西兰含量 (高达60%).
  • 描述了开发的LFLSE的机械,离子导电性,自我愈合和透明性质.

主要成果:

  • 实现了卓越的机械性能:破裂时应变2604%,拉伸强度10.38MPa,性156.02MJ·m-3.
  • 在25°C时显示出3.70 × 10−4 S·m−1的有希望的离子导电性.
  • 证实了基兰基离子导体的自我愈合能力和透明度.

结论:

  • 高兰含量的LFLSE代表了生物质无液体离子导体的重大进步.
  • 这种方法有效地将余的西兰转化为可持续的灵活电子产品的高价值材料.
  • 开发的材料促进了西兰的实际应用,并为环保电子创新做出了贡献.