Development of a Multiwalled Carbon Nanotube Voltage Sensor Using Copper Oxide Nanofluids
Development of a Multiwalled Carbon Nanotube Voltage Sensor Using Copper Oxide Nanofluids
复制标题
使用氧化铜纳米流体开发多壁碳纳米管电压传感器
作者：
K. Subramanian;K. Tejas;R. George;Jay Porwal;B. Mohammed;Yash Kusane
碳纳米管（CNT）是碳的同素异形体，具有上级的机械、电子、物理和光学性质。当流体通过纳米管时，流体在CNT的壁上施加机械力，由于该机械力，在CNT的表面上引起应变，从而在应变六边形的中心处产生净电荷。这种感应极性在纳米管两端产生电压。在该项目中，除了常规流体之外，还使纳米流体（乙二醇中的氧化亚铜）通过多壁CNT（MWCNT），并且在纳米管传感器中流动流体的毛细管上升之后观察到电压（在纳米流体的情况下高达4.1 mV）。这是在协议与以前进行的压电效应的研究，由于传统的流体在单壁碳纳米管（SWCNTs）的流动。比较了不同流体系统在MWCNT上产生的电压，并对流体系统进行了表征。尝试提出作为流体和流动特性的函数产生的电压。本文旨在强调多壁碳纳米管在基于传感器的技术和能量转换设备中的可能用途。
Carbon Nanotubes (CNTs) are allotropes of carbon having superior mechanical, electronic, physical, and optical properties. When a fluid is passed through the nanotubes, the fluid exerts a mechanical force on the walls of the CNT due to which a strain is induced on the surface of the CNTs creating a net charge at the center of the strained hexagon. This induced polarity produces a voltage across the nanotubes. In this project, nanofluids (cuprous oxide in ethylene glycol) in addition to conventional fluids were passed through multiwalled CNTs (MWCNTs), and a voltage was observed (upto 4.1 mV in the case of nanofluids) after the capillary rise of the flowing fluid in the nanotube sensor. This was in agreement with previously conducted studies on the piezoelectric effect due to the flow of conventional fluids on single-walled CNTs (SWCNTs). The voltage generated across the MWCNTs for the different fluid systems was compared and characterization was done with respect to the fluid system. An attempt was made to present the voltage generated as a function of the fluid and flow properties. The article aims to highlight the possible use of MWCNTs in sensor-based technology and energy conversion devices.