超强的离子电流片显示电化学的奥斯摩斯电源
Lengwan Li1, Weiqian Tian1,2, Armin VahidMohammadi3
1Department of Fibre and Polymer Technology, Wallenberg Wood Science Center, KTH Royal Institute of Technology, Stockholm, SE-100 44, Sweden.
Advanced materials (Deerfield Beach, Fla.)
|July 25, 2023
概括
研究人员使用纳米纤维素和MXene开发了一种新的纳米复合材料薄膜,实现了高导电性和机械强度. 这种材料使新的生物灵感软执行器具有显著的形状改变能力.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
- 软机器人软机器人 软机器人软机器人
背景情况:
- 开发具有同时具有高离子/电导率,机械强度和改变形状的能力的多功能软材料具有挑战性.
- 在软材料系统中,改进一个属性往往会损害其他属性.
研究的目的:
- 创建一个单一的软材料,整合高离子/电导率,机械强度和响应能力.
- 探索纳米纤维素-MXene纳米复合物的潜力,用于先进的响应性设备.
主要方法:
- 使用充电的1D纳米纤维素纤维和2DTi3C2TxMXene制造纳米复合材料薄膜.
- 使用自组装工艺,以实现一个分层结构与内平面纳米粒子对齐.
- 水凝形式 (20重量%液体) 的电导率和机械性质的表征.
主要成果:
- 在水凝中达到高平面电导率 (>200 S cm-1) 和抗拉强度 (~100 MPa).
- 证明了大量的吸水量和在纳米和中等尺度上独特的分层复合结构.
- 组装了一种新型软执行器,由于透效应,在低电压下 (±1V) 呈现巨大的可逆胀 (85%应变).
结论:
- 纳米纤维素-MXene纳米复合材料提供了一个有前途的多功能软材料解决方案.
- 分层结构是实现高导电性,机械强度和响应能力的关键.
- 开发的软执行器证明了生物灵感应用的高效,低压驱动的形状变化.
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