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相关概念视频

Surface Tension and Surface Energy01:16

Surface Tension and Surface Energy

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When a paint brush is immersed in water, the bristles wave freely inside the water. When it is taken out, the bristles stick together. The reason behind this effect is surface tension.
Consider a beaker filled with liquid. The bulk molecules in the liquid experience equal attractive forces on all sides with the surrounding molecules. However, the surface molecules experience a net attractive force downward due to the bulk molecules. The surface of the liquid behaves like a stretched membrane,...
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Proof-of-Concept for Gas-Entrapping Membranes Derived from Water-Loving SiO2/Si/SiO2 Wafers for Green Desalination
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坚固的基于反向电湿的能量收集在滑滑的表面.

Haimei Cheng1,2, Wan Shao1,2, Jing Jin1,2

  • 1Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University Guangzhou 510006 People's Republic of China tangbiao@scnu.edu.cn.

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概括

研究人员开发了一个强大的液滴发电机,使用滑滑的滑剂注入多孔表面 (SLIPS). 这项创新克服了电设备的挑战,在恶劣条件下实现了可靠的长期能源采集.

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科学领域:

  • 材料科学 材料科学 材料科学
  • 收集能源 收集能源
  • 表面工程是什么?表面工程是什么?

背景情况:

  • 基于反向电湿的液滴电力发电机 (REWOD-DEGs) 提供高功率密度和适应性,但受到表面电荷捕获和介电失效的影响.
  • 这些局限性阻碍了REWOD-DEGs的长期可靠性和实际应用.

研究的目的:

  • 通过解决表面电荷捕获和环境退化,提高 REWOD-DEG 的可靠性和耐用性.
  • 引入一种新的表面改造策略,以提高能源采集性能.

主要方法:

  • 在REWOD-DEG架构中整合了一个滑滑的滑剂注入的多孔表面 (SLIPS).
  • 在长时间运行和各种极端环境条件下评估设备的性能.

主要成果:

  • SLIPS有效地抑制了表面电荷的捕获和环境污染,大大提高了设备的稳定性.
  • 改进后的REWOD-DEG可以在100天的间歇性能量采集时间内,没有表现下降.
  • 该设备在一系列具有挑战性的条件下表现出强大的性能,包括低温,不同pH值,高湿度,污染和机械痕.

结论:

  • 纳入SLIPS解决了REWOD-DEGs的关键应用挑战,从而实现了前所未有的长期可靠性.
  • 这项工作为开发更强大,更通用的液滴式发电机为各种应用铺平了道路.
  • 这些发现为设计下一代能收获设备提供了有价值的见解,这些设备可以抵抗恶劣环境.