水下热声发电由一个等级四足碳纳米管网络
Na Liu1, Lena Marie Saure2, Rammohan Sriramdas1,3
1Department of Materials Science and Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, United States.
ACS nano
|March 13, 2024
概括
这项研究引入了使用3D四脚形碳纳米管 (t-CNTs) 的强大的水下热声学 (TA) 声音发生器. 这些设备提供稳定,宽频的水下声音生成,克服了传统CNT板的局限性.
科学领域:
- 材料科学 材料科学 材料科学
- 声学工程 声学工程
- 纳米技术 纳米技术
背景情况:
- 碳纳米管 (CNT) 板在热声学 (TA) 声音生成方面具有前景,因为它们的特定热容量很低.
- 现有的CNT板在水中缺乏机械强度,限制了它们在水下TA应用中的使用.
研究的目的:
- 开发一种机械强大的水下TA装置,使用一种新的碳纳米管结构.
- 调查结构尺寸和回火对TA在水环境中的声音产生性能的影响.
主要方法:
- 制造具有高孔度 (>99.9%) 的3D四足碳纳米管 (t-CNT) 组件.
- 系统地探索t-CNT尺寸和回火方法 (炉与朱尔加热).
- 在广泛的频谱 (10^210^4 Hz) 中评估水下声音生成性能.
主要成果:
- 与朱尔加热的CNTs相比,烤炉制的t-CNT表现出优越的,均的疏水性.
- 基于t-CNT的水下TA装置显示出稳定,平滑,宽频谱的声音产生 (10^210^4 Hz).
- 与常规CNT设备相比,在非共振频率上观察到更强大,更稳定的性能.
结论:
- 机械上坚固的3D t-CNT结构能够有效地产生水下TA声音.
- 优化的退火程序提高了设备的性能和在水中的耐用性.
- 这项工作推动了可靠,高性能,无共振的水下TA设备的开发.
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