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通过使用化学催化剂,快速且可逆地激活液晶

Huaizhe Yu¹, Jake I Gold², Trenton J Wolter²

¹Robert Frederick Smith School of Chemical and Biomolecular Engineering, Cornell University, 1 Ho Plaza, Ithaca, NY, 14853, USA.

Advanced materials (Deerfield Beach, Fla.)

|February 8, 2024

概括

研究人员开发了一种使用和氧反应在金表面控制液晶 (LC) 的新方法. 这一突破为先进的软物质应用提供了快速,可逆的微尺度启动.

科学领域:

材料科学材料科学材料科学
化学工程是化学工程的重要组成部分.
软物质物理学软物质物理学

背景情况:

微管和运动蛋白驱动活体物质和复合系统中的微尺度执行.
利用化学能量是组织软物质的关键,例如液晶 (LC).
现有的液压电路执行方法通常是脆弱的,并且难以用于技术应用.

研究的目的:

开发一种快速和可逆的方法来控制室温下LC的方向.
为了研究催化气表面反应用于微启动的使用.
探索化学能量的潜力,以实现功能LC的执行.

主要方法:

气态 (H2) 和氧 (O2) 之间的利用反应由金 (Pd/Au) 表面催化.
采用表面化学分析和计算化学来研究反应机制.
通过使用开发的系统,证明了概念证明珠子的微启动.

主要成果:

通过H2/O2反应,通过H2/O2反应实现了次秒,可逆的LC方向变化 (垂直于平面).
证实Pd/Au表面上的H2吸附驱动LC重定向.
在O2暴露时展示了可逆的LC方向变化,恢复了初始状态.
确定了表面组成和反应动力学对LC动态的影响.

结论:

化学能量和催化剂可以有效地用于功能LC的可逆微观激活.
开发的Pd/Au催化H2/O2反应系统为LC控制提供了强大的方法.
这项工作为将软物质作用转化为技术背景提供了新的策略.

关键词:

化学催化剂是一种化学催化剂.动力学动力学动力学液晶是一种液体晶体.微启动的微启动方式

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